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<strong>Energy</strong> <strong>Projects</strong><br />

Partnerships and Perspectives of<br />

Arab-German Cooperation<br />

www.ghorfa.de


<strong>Energy</strong> <strong>Projects</strong><br />

Partnerships and Perspectives of<br />

Arab-German Cooperation


Table of Contents<br />

5<br />

6<br />

Prefaces<br />

Dr. Philipp Rösler | Federal Minister of Economics and Technology<br />

Thomas Bach | President, Abdulaziz Al-Mikhlafi | Secretary General<br />

9<br />

10<br />

14<br />

22<br />

Conventional <strong>Energy</strong><br />

Shoaiba Stage III gears up for the summer peak operation<br />

Efficiency Improvements Using Heat Recovery Systems for Conventional Power Plants<br />

Decentralized Power Generation in Combination with Heat and Cold Supply<br />

27<br />

28<br />

32<br />

35<br />

38<br />

41<br />

43<br />

46<br />

50<br />

Renewable <strong>Energy</strong><br />

Solar Thermal Power Plants – Egypt’s Kom Ombo and Others<br />

Shams One – 100 MW Concentrated Solar Power Plant<br />

AlSol – Feasibility for a Solar Thermal Tower Power and Gas Turbine Plant in Algeria<br />

The Value of Renewable Energies in the MENA Region<br />

Masdar’s 100 MW Noor 1 Photovoltaic Project<br />

Sustainable <strong>Energy</strong> for Remote Radio Towers in Algeria<br />

Wind <strong>Energy</strong> in Libya<br />

First Larger Scale Wind Park <strong>Projects</strong> in Sudan<br />

53<br />

54<br />

58<br />

62<br />

64<br />

Power, Transmission and Distribution<br />

Electricity Interconnection <strong>Projects</strong> among Arab Countries<br />

Smart Grids – Powering a Cleaner <strong>Energy</strong> Future<br />

Qatar Grid Expansion Project<br />

Market Introduction of Innovative Mast Solutions in the Middle East<br />

69<br />

70<br />

74<br />

78<br />

81<br />

84<br />

<strong>Energy</strong> Efficiency<br />

<strong>Energy</strong> Efficiency in the Construction Sector in the Mediterranean<br />

Innovation through Tradition and Technology<br />

<strong>Energy</strong> Efficiency with AAC Building Materials<br />

Meeting the Challenges of Thermal Insulation at the SOFITEL Hotel, Jumeirah Beach Residence, Dubai<br />

<strong>Energy</strong> Efficiency and Climate Change Mitigation: Triple Win for the Water Authority of Jordan<br />

89<br />

90<br />

93<br />

Water, Desalination and Irrigation<br />

The Naga Hammadi Barrage on the River Nile<br />

Algerian Desalination Market Update<br />

96<br />

97<br />

99<br />

102<br />

105<br />

Special Topics<br />

Market Development and Business Opportunities in the Power Sector of Saudi Arabia<br />

Renewable <strong>Energy</strong> Finance – Bringing the Private Sector in<br />

Knowledge for the Desert – A Euro-Mediterranean Partnership on Science and <strong>Energy</strong><br />

The Industrial Consortium Dii: Building a Sustainable <strong>Energy</strong> Future on the Basis of the Desertec Vision<br />

108<br />

List of Contributors


Message of Greeting<br />

Economic relations between Germany and the Arab region are experiencing<br />

a high level of momentum. This is true for the energy sector as well.<br />

When it comes to energy, German companies offer an abundance of innovative<br />

technologies, products and services at competitive conditions. This<br />

new business guide to the energy sector, which is published by the <strong>Ghorfa</strong><br />

Arab-German Chamber of Commerce and Industry, provides an attractive<br />

and easy-to-understand overview of Germany’s expertise in this area,<br />

including specific examples of projects that German firms have implemented<br />

in numerous Arab countries.<br />

It is our aim to ensure that cooperation between Germany and the Arab<br />

world remains very close in the future. Major opportunities exist in areas<br />

such as the expansion of renewable energy, the modernisation of power<br />

grids, and the improvement of energy efficiency. Within the framework of<br />

our own efforts to transform Germany’s energy supply, the German government<br />

has adopted ambitious targets in all three of these key areas. We<br />

now want to achieve these targets in an economically viable way, so that<br />

Germany can become one of the most energy-efficient and climatefriendly<br />

economies in the world without compromising competitiveness<br />

and prosperity. Working together in partnership with the countries of the<br />

Arab world can contribute to this goal.<br />

Dr. Philipp Rösler<br />

That’s why we work to promote the business activities of German companies<br />

in the Arab region by creating a positive policy environment and by<br />

providing support for promising projects – for example, we are setting up<br />

bilateral energy partnerships that will intensify energy sector cooperation<br />

to the benefit of all sides.<br />

I am convinced that Arab-German energy relations will generate tremendous<br />

economic opportunities in the future. In this spirit, I wish all of the<br />

companies involved in these projects continued success in developing<br />

profitable business initiatives.<br />

Sincerely yours,<br />

Dr. Philipp Rösler | Federal Minister of Economics and Technology<br />

Preface | Dr. Philipp Rösler<br />

4 | 5


Dear Reader<br />

We are pleased to present you the first detailed publication on Arab-German<br />

cooperation in the field of energy. This book highlights some of the<br />

most interesting and promising projects in the Arab World in which German<br />

companies are participating.<br />

The energy sector is a main sector for Arab-German business relations.<br />

While German companies traditionally have been key suppliers for conventional<br />

power plants in Arab countries, the cooperation extended to the field<br />

of renewable energies in recent years. This is due to the high number of<br />

projects in this business area stretching all over the Arab world, from Abu<br />

Dhabi’s Masdar City to Kuraymat in Egypt and Desertec’s project of reference<br />

in Morocco, with German companies participating in all of these projects.<br />

Growing demand and growing production necessitates the development<br />

and extension of transmission and distributional networks across<br />

the Arab world, such as the GCC power grid.<br />

Closely linked to all of these projects is the question of energy efficiency.<br />

In times of growing demand and costs of energy production, the best way<br />

to save the environment is to avoid excessive consumption. Therefore,<br />

numerous projects of green building and energy-saving measures are on<br />

the agenda in the Arab world. German companies are taking a leading role<br />

in this regard, for instance in Jordan, the United Arab Emirates and Qatar.<br />

More efficient desalination plants are of high importance. German<br />

companies lead in the fields of evaporation technology and reverse osmosis.<br />

Water, irrigation and desalination technologies remain among the priorities<br />

of Arab-German cooperation.<br />

The <strong>Ghorfa</strong> Arab-German Chamber of Commerce and Industry has<br />

been active in encouraging Arab-German cooperation in the energy sector.<br />

The first Arab-German <strong>Energy</strong> Forum in October 2010 in Berlin<br />

attracted more than 300 decision-makers from both sides. A recently<br />

signed cooperation agreement between <strong>Ghorfa</strong> and the Desertec Industrial<br />

Initiative and the <strong>Ghorfa</strong> working group “<strong>Energy</strong>” are constantly pursuing<br />

better exchange and coordination concerning Arab-German energy<br />

cooperation.<br />

We sincerely thank Mr Thomas Kraneis, Executive Director Customer<br />

Relationship Management of Lahmeyer International, and Mr Jürgen<br />

Hogrefe, General Manager of h. c. hogrefe consult, for their input and their<br />

contribution to this volume. We would further like to thank Ms Rafaela<br />

Aguilera Alvarez, Ms Traudl Kupfer, Mr Clemens Recker, Ms Nicola Höfinghoff<br />

and Ms Anhar Al-Shamahi for their work and effort to realize this<br />

book project.<br />

We wish you an informative and instructive reading and hope to see<br />

you at one of our energy-related activities.<br />

Dr. Thomas Bach<br />

Thomas Bach | President<br />

Abdulaziz Al-Mikhlafi | Secretary General<br />

Abdulaziz Al-Mikhlafi<br />

Preface | Dr. Thomas Bach, Abdulaziz Al-Mikhlafi<br />

6 | 7


Conventional <strong>Energy</strong><br />

Despite the growth in alternative energy solutions, conventional energy<br />

remains for the time being the prime source of power and electricity in the<br />

Arab world and in Germany. Oil and gas still made up more than 90 per cent of<br />

primary energy consumption in the Arab world in 2010. The cooperation<br />

between Germany and the Arab world has a long and successful history with<br />

German companies being involved in a number of promising projects.<br />

A number of modern oil- and gas-fired plants have been built by German<br />

companies in Arab countries who also seek to introduce new technologies such<br />

as heat recovery systems and co- and trigeneration. Due to industrial<br />

diversification and population growth, the demand for energy and electricity is<br />

set to sharply increase in Arab countries, which in turn necessitates the<br />

build-up of conventional as well as alternative energy production plants.<br />

This chapter highlights some of the latest developments and technologies in<br />

Arab-German conventional energy cooperation and presents selected projects<br />

of reference.<br />

Conventional <strong>Energy</strong><br />

8 | 9


Shoaiba Stage III<br />

gears up for the summer peak operation<br />

Alstom Power<br />

Marc Villemin | Project Director<br />

The first unit of the Shoaiba III project is expected to start delivering power this summer.<br />

The start-up will be the culmination of what has been a huge effort to shorten the construction/<br />

commissioning schedule of the latest stage of Saudi Arabia’s largest power plant.<br />

Located on the banks of the Red Sea in Saudi Arabia is the Kingdom’s<br />

largest power plant. The Shoaiba power project already<br />

has an installed capacity of 4,400 MW from its first two stages,<br />

and the addition of Stage III will increase this capacity to<br />

5,600 MW. The Saudi Electricity Company (SEC), a majority<br />

state-owned corporation, owns the Shoaiba power plant.<br />

The plant is of tremendous importance. It provides electricity<br />

in the western grid of Saudi Arabia including the holy city of<br />

Makkah. With Ramadan starting August 1, 2011, and then occurring<br />

in the summer for the next few years, the area will have an<br />

even greater demand for power during the hot summers due to<br />

air conditioning needs.<br />

Shoaiba is a huge and ongoing development. The contract for<br />

the first three oil-fired 400 MW units of Stage I was signed in<br />

1998. In phase 2 of this first stage two further units have been<br />

added, giving Stage I a generating capacity of 2,000 MW from<br />

five units. Following completion of Stage I in 2003, Alstom<br />

signed a contract in March 2004 for the construction of Stage II<br />

(Phases 1 and 2) for another 6 × 400 MW units, bringing the total<br />

output of the plant to 4,400 MW.<br />

Four years later, in 2008, the contract for Stage III was<br />

awarded. Stage III will supply three more 400 MW units. This<br />

contract includes designing, manufacturing, supplying, constructing,<br />

installing, commissioning, and testing of the entire<br />

plant, including boilers, STF40 steam turbines, GIGATOP 2-pole<br />

turbogenerators, sea-water flue gas desulphurization systems<br />

for the removal of SO 2 , and the complete balance of plant and<br />

systems for the three units. The consortium partner, Saudi<br />

Archirodon, was to carry out all the associated civil works.


The Shoaiba power plant<br />

Unit design<br />

The Shoaiba power plant is about 100 km south of Jeddah. It is<br />

in a flat coastal desert area that is exposed to extreme temperatures<br />

ranging from 15 °C to 55 °C and a relative humidity of<br />

100 % that can occur any time of the year.<br />

In addition to providing power for the region, the plant also<br />

provides a small amount of desalinated water for the process<br />

and small community buildings that house the operation and<br />

maintenance team. There is no commercial export of water outside<br />

the plant.<br />

On completion of Stage III, the power station will consist of a<br />

total of 14 × 400 MW units. The units for Stage III have the same<br />

design as the existing units. Each unit comprises a steam turbine<br />

and a two-pressure reheat boiler capable of burning crude<br />

or heavy fuel oil. The fuel for the boilers comes predominantly<br />

from Yanbu & Rabigh, western coastal cities of the Kingdom, by<br />

sea tankers to the port of the plant.<br />

The controlled circulation boilers feature a reheater for the<br />

steam expanded in the HP turbine and an economiser, which<br />

heats the feedwater before it enters the steam drum and cools<br />

the flue gas before entering a regenerative air pre-heater.<br />

The boilers also use tangential firing with over-fire air to<br />

reduce NOx. Each boiler generates 1,250 t/h of steam at pressures<br />

of 172 and 40 bar, and temperatures of 541 °C and 539 °C. The generated<br />

high-pressure steam is expanded in a three-casing steam<br />

turbine and condensed in a seawater-cooled condenser at a pressure<br />

of 90 mbar. Extraction water is then heated through seven<br />

heaters (four LP, feedwater tank, and two HP heaters). The steam<br />

turbine is coupled to a generator that has a rating of 510 MVA<br />

and a terminal voltage of 24 kV. This terminal voltage is transformed<br />

up to 380 kV for dispatch to the 60 Hz Saudi Western<br />

grid.<br />

Stage III will be fitted with flue gas desulphurization (FGD)<br />

equipment to reduce sulphur emissions resulting from burning<br />

oil. The FGD system is a wet SWFGD system that uses seawater to<br />

capture the sulphur dioxide in the flue gas.<br />

Construction<br />

Apart from the FGD plant, Stage III is a repeat concept of the<br />

first two stages – the main difference of Stage III will be the use<br />

of current technology and balance-of-plant equipment that is<br />

available today. This called for some degree of re-engineering<br />

of, for example, cabling and piping. It will also have a new distributed<br />

plant control system, and accordingly new equipment<br />

interfaces.<br />

Nevertheless, the ‘repeat effect’ has allowed some time saving<br />

on the manufacture of the steam turbines and boilers and is<br />

enabling Alstom to deliver an optimised schedule. But perhaps<br />

the major factor in making short lead-times possible has been<br />

the Plant Integrator TM approach. As a company with EPC expertise,<br />

which designs and manufactures all the major plant components<br />

in-house, Alstom was able to design and manufacture<br />

components to fit in with EPC tasks in order to produce the optimum<br />

overall time schedule.<br />

Conventional <strong>Energy</strong> | Shoaiba Stage III<br />

10 | 11


The project has moved along at a tremendous pace. From the<br />

outset, the optimised schedule called for close coordination<br />

between the companies involved, in Germany, in France, in<br />

India and various other locations around the globe. The prefabrication<br />

subcontractor was also kept closely in the loop in order<br />

to mobilise the required additional resources under the supervision<br />

of Alstom’s construction team in Saudi. This allowed the<br />

piping to be pre-fabricated in Saudi, 1,200 km away from<br />

Shoaiba, and transported to site together with the required<br />

pipe supports by the end of November 2009.<br />

The plant is contracted to start-up the first unit on 1 September<br />

2011, but the time limit could even be undershot, and the<br />

first unit started up three month earlier, in June 2011 closely followed<br />

by the other units. This compressed schedule allows SEC<br />

to have additional capacity on line by the summer during the<br />

hajj, the pilgrimage to Mecca.<br />

It is a big task that has required some logistical gymnastics.<br />

Having reached a sufficient quantity of deliveries at site, in order<br />

to ensure continuous operations, the carbon steel piping erection<br />

was started around four weeks ahead of schedule. The next<br />

step was to start the HP piping erection in the power block with<br />

piping material delivered from Korea and Germany, as well as<br />

the HP piping erection in the boiler area with piping material<br />

delivered from the Czech Republic.<br />

The boiler drum was shipped from Canada to Jeddah and<br />

then taken 120 km by road to reach the Shoaiba site. However, in<br />

order to remain on schedule, the project team arranged for the<br />

211.75 tons drum to be shipped by special train to the port of<br />

export even though the structure was only about 95 % complete.<br />

This was done in order to ensure the vessel could be carried by<br />

one of the special ships needed for such a structure. The Saudi<br />

Flag ships only offer one route a month to Jeddah, and the team<br />

did not want to lose a month off the schedule by having to wait<br />

until the boiler drum was complete.<br />

The remaining construction required on the boiler drum,<br />

limited to drum internals, was carried out by the project team<br />

on site. As the boiler drum is a key component in the sequencing<br />

of the high pressure piping erection, keeping it on schedule was<br />

vital.<br />

Another major component of the steam and water cycle of<br />

the plant is the condenser. After the unit was delivered in February<br />

2010 the site team successfully initiated the assembly of the<br />

Shoaiba Stage III


Communication is key<br />

condenser following insertion of the LP#1 (low pressure heater)<br />

to the neck section for Unit 14 in March 2010.<br />

Shoaiba III uses the steam surface condenser consisting of a<br />

shell-tube heat exchanger (a large pressure vessel containing<br />

tubes to transfer heat between two fluids), which is commonly<br />

used in most power plants.<br />

The condenser recuperates the steam exhaust from the turbine<br />

through condensation or heat exchange and returns the<br />

condensate back to the boiler to complete the steam-water cycle.<br />

In addition, the condenser acts as the main component to<br />

increase the efficiency of the steam turbine by lowering the<br />

back-pressure, thus, reducing the steam flow for a given output.<br />

The first steam turbine delivery – one of three STF40 backpressure<br />

type steam turbines that make up the turbine set for<br />

Unit 14 – was received at the site in April 2010, a full seven<br />

months ahead of schedule. The turbine includes high pressure,<br />

medium pressure, and low-pressure turbines manufactured by<br />

Alstom’s factory in Belfort, France, with components also coming<br />

from factories in Poland and Switzerland.<br />

The team planned and coordinated transport arrangements<br />

to secure a fast-track delivery of the turbine in just 29 days as<br />

compared to an initial forecast of 60 days, which included shipping<br />

to Jeddah followed by 120 km road transport to the plant. In<br />

addition, everything had to be prepared on site in advance so<br />

that on arrival, key components could be immediately placed in<br />

position mitigating any requirements for storage.<br />

This could only be achieved through the co-operation of all<br />

the teams involved including the transportation team. Together,<br />

they were able to gain another month ahead of the contracted<br />

schedule.<br />

The next step was the completion of the Unit 14 final assembly<br />

of the complete turbine and one GIGATOP generator. Meeting<br />

the best effort schedule has provided the biggest challenge<br />

in the project.<br />

Yet the best laid plans can be subject to unforeseen circumstances.<br />

Just before Ramadan 2010, an incident occurred on the<br />

generator of Unit 7 (Shoaiba Stage II), SEC requested immediate<br />

help and support, which meant that the generator rotor from<br />

Unit 14 had to be transferred to Unit 7 in order to keep it on line.<br />

Unit 7 could be put back successful on line, but the incident<br />

meant that meeting the best effort schedule was made even<br />

more difficult.<br />

The project team had to take the generator rotor from Unit 13<br />

and install it in Unit 14. Unit 13 was installed with the generator<br />

rotor of the Unit 7, which has been repaired at Birr factory in the<br />

meantime. Unit 12 will have the generator rotor manufactured<br />

for the same Unit. This innovative thinking allowed a substantial<br />

part of the lost time to be recovered.<br />

Completing such a big project to a demanding schedule<br />

requires even greater team spirit than on typical projects, as<br />

well as more detailed follow-up than usual. It was important<br />

for team members to get to know each other at work and even<br />

on a personal level in order to foster good communication and<br />

fast problem solving.<br />

Good communication and fast information flow between<br />

teams is essential. To this end, there were weekly meetings, conference<br />

calls, and daily meetings between specialists in key<br />

areas.<br />

With the teams spread all over the world, this approach was<br />

even more critical. The project has been pulled together from a<br />

truly international team. The boiler team is in the US, the Turbines<br />

are from Poland and France, the generator from Switzerland<br />

and Poland, all managed by Germany, the engineering team<br />

in India and France, the purchasing team spread between Dubai,<br />

Malaysia, and France (Belfort); the transport team in Switzerland<br />

(Baden), the management team in Belfort, and contractual support<br />

from the UK.<br />

As part of a consortium, it was also crucial for the supervising<br />

management to have open communication and understanding<br />

with its civil consortium partner so that decisions could be<br />

made immediately.<br />

Of course, a good communication and team spirit with SEC<br />

was also a key factor for success.<br />

Back on track<br />

The open dialogue that has characterised the management of<br />

Shoaiba Stage III will be important in the run-up to the summer<br />

start-up target.<br />

The race is now on to get back on track to get as close as possible<br />

to the best effort schedule.<br />

First firing of Unit 14 was planned for 1 December 2010 and<br />

despite the delay due to the loan to SEC of a generator rotor, this<br />

was achieved on 20 December. Synchronization was successfully<br />

achieved in April 2011, six weeks ahead of contractual schedule.<br />

The ambitious target has been an approximately two-month<br />

interval between the subsequent units to follow the first Unit.<br />

Despite the generator setback, the second unit was fired for the<br />

first time in March 2011, which meant that the project team was<br />

hitting its best effort schedule. The first two units started commercial<br />

operation by producing their total 800 MW output by<br />

mid June 2011 and the last unit was synchronized on 29 July, a<br />

full year in advance of the schedule.<br />

Team spirit, cooperation and full support of the client, SEC,<br />

resulted in a ‘best effort schedule’ in the end.<br />

(The article first appeared in the Modern Power Systems)<br />

Conventional <strong>Energy</strong> | Shoaiba Stage III<br />

12 | 13


Delivered and stored flue gas cooler modules<br />

Efficiency Improvements<br />

Using Heat Recovery Systems for<br />

Conventional Power Plants<br />

Babcock Borsig Steinmüller (BBS)<br />

Bernhard Michels | Managing Director and<br />

Frank Adamczyk | Head of Heat Recovery Department<br />

In times of fuel shortage and tight economical circumstances the competition<br />

between power plant operators is even more fierce. In order to meet these market challenges<br />

a scheduled and ensured plant runtime is a precondition for conventional power plants.<br />

Due to the fuel price development this also applies to the Arab states increasingly.<br />

In addition to economical aspects the protection of the environment<br />

is considered as a decisive factor in securing our<br />

future. A use of non-renewable resources that is free of pollution<br />

is essential to achieve these aims.<br />

It is a main interest of the energy producers to operate<br />

power plants as long and efficiently as possible. Modernisation<br />

and retrofits, like heat recovery, gain a new significance in this<br />

context as these means reduce pollutants quite effectively or<br />

increase the efficiency.<br />

With an integrated heat recovery system the runtime of an<br />

existing power plant can be extended significantly. The heat<br />

recovery system uses the heat downstream of the electric precipitator<br />

and upstream of the flue gas desulphurization to be<br />

used i. e. for air preheating or condensate preheating. This<br />

method increases the efficiency of a power plant up to 3 %, the<br />

so-called “Green Megawatts”. The system was developed by the<br />

heat recovery department of Babcock Borsig Steinmüller,<br />

which belongs to the Bilfinger Berger Power Service Group.<br />

Meanwhile it is described worldwide as “Best Available Technology”<br />

(BAT) in modern fossil new built power plants.<br />

In the following example of the fossil fired Mehrum power<br />

plant (750 MW el ) a further operation of another 25 years was the<br />

pre-condition to examine four different alternatives for heat<br />

recovery and finally, to integrate an individually modified heat<br />

recovery system. This paper describes the integration of the<br />

system in the existing power plant, in particular the planning,<br />

realisation and operation of the plant with “air preheating by<br />

using flue gas waste heat”. Additionally it points out economical<br />

advantages due to savings of primary energy and trading<br />

with CO 2 emission rights, which might be the basis for installing<br />

similar applications in the Arab states.


Life-time evaluation<br />

Advanced heat recovery from flue gases<br />

International conferences on service life assessment and service<br />

life extension of power plants show that there are considerations<br />

to operate power plant units 15–25 years exceeding their<br />

design period. A service life assessment including the investigation<br />

of the required measures for NOx reduction, desulphurization<br />

and CO 2 reduction is an alternative to the construction<br />

of a new plant. Moreover, this investigation and the resulting<br />

implemented measurements can increase the plant reliability.<br />

Life-time evaluation can base upon:<br />

1 Assessment of actual conditions<br />

2 Re-calculation of the critical components<br />

3 Local visual inspection and tests<br />

– Replica test<br />

– Magnetic-particle test<br />

– Liquid-penetrate test<br />

– US test<br />

– Wall thickness measurement<br />

– Circumference measurement<br />

– Ovality measurement<br />

– X-ray test<br />

4 Determination of the relevant operating data<br />

5 Calculation of exhaustion in case of creep rupture stress<br />

6 Calculation of exhaustion in case of cyclic stressing<br />

7 Calculation of the overall exhaustion in case of creep<br />

rupture and cyclic stressing<br />

The efficiency of existing coal fired power plants can be<br />

increased decisively by upgrading with modern equipment.<br />

Common measures are for example retrofit actions on the<br />

steam generator, turbine or steam/water circuit, improvement<br />

of monitoring and control systems as well as reduction of internal<br />

energy consumption.<br />

However, the formation of highly corrosive acids during<br />

cooling of flue gases is a limiting factor in utilization of waste<br />

heat for a further efficiency improvement. For example, a common<br />

technology is that hot flue gas arriving from the air preheater<br />

is immediately conducted to wet flue gas desulphurization<br />

(FGD) via an electrostatic precipitator and then, purified,<br />

directly discharged into the cooling tower without reheating.<br />

As a rule, the flue gas inlet temperature is clearly higher than<br />

the absorber’s operating temperature to avoid corrosion problems<br />

in the ducts. The excess heat is normally wasted by<br />

quenching with water in the FGD.<br />

Babcock Borsig Steinmüller GmbH, has developed the POW-<br />

ERISE® heat recovery systems to utilize these excess heat<br />

potentials for increasing the power plant efficiency.<br />

Final remarks concerning life-time evaluations<br />

A remaining life assessment means the summary evaluation of:<br />

– Determination of the static exhaustion<br />

– Determination of the dynamic exhaustion<br />

– Results of the non-destructive tests<br />

– Results of the destructive tests<br />

On the basis of the above mentioned tests and results a recommendation<br />

is given which represents<br />

A necessary measurements<br />

B replacement of damaged components<br />

C estimation of residual operating period left<br />

D optimisation of starting procedures<br />

and load change parameters<br />

If the power plant can be operated several years further according<br />

to the results of the remaining life study, we recommend<br />

the installation of a heat recovery system. This was executed in<br />

the Mehrum power plant as described below.<br />

Figure 1:<br />

Acid Condensation in the Flue Gas Cooler<br />

Here, the approach is the application of special corrosion<br />

resistant heat exchangers to cool down the flue gases before<br />

the FGD well below the acid dew point, thus minimizing the<br />

heat wasting by quenching to a minimum. The heat exchanger<br />

is built of smooth fluoroplastic G-FLON (featuring high corrosion<br />

resistance) tubes arranged in a U-tube configuration. They<br />

are bundled in compact individual modules and fitted from<br />

above into a rectangular; also corrosion protected casing as<br />

part of the ductwork. In the heat exchanger the heat is transmitted<br />

to water, which serves as the heat transfer medium.<br />

The recovered heat can then be used in other power plant<br />

processes such as condensate and/or air preheating, feedwater<br />

preheating, or district heating. The efficiency improvement<br />

generally results from saving valuable heating steam which<br />

can be further used by the turbine.<br />

Conventional <strong>Energy</strong> | Heat Recovery Systems<br />

14 | 15


The degree of efficiency improvement resulting from these<br />

heat recovery systems is basically dependent on a well thermodynamic<br />

layout and design of the system itself as well as an<br />

accurate overall-analysis of its implementation into the power<br />

plant process. This is especially important for supplementary<br />

system integration in existing power plants for retrofit.<br />

System analysis and optimisation at the<br />

Mehrum power plant<br />

Within a planned steam turbine upgrade, the possibilities for an<br />

implementation of a heat recovery system have been analysed<br />

and different solutions have been compared at the Mehrum<br />

power plant concerning efficiency increase and profitability.<br />

The power plant ran with medium load operation characterised<br />

by daily shutdowns and start-ups. There were two flue gas<br />

lines, each with a separate wet flue gas desulphurization. In the<br />

first line the flue gases were given directly into the absorber;<br />

the flue gas temperature of about 150 °C is decreased by<br />

quenching. In the second line a regenerative gas/gas heat<br />

exchanger is installed between inlet and outlet of the FGD for<br />

heat displacement from raw gas to clean gas. Past the absorbers<br />

the cold clean gases in line 1 and the reheated ones of line 2<br />

are mixed to reach the required flue gas temperature in the<br />

stack. Following this, an unused heat potential before the FGD<br />

in line 1 was available for heat recovery.<br />

Kraftwerk Mehrum GmbH and Babcock Borsig Steinmüller<br />

GmbH evaluated that a minimum flue gas inlet temperature of<br />

85 °C after the flue gas cooler is possible considering the water<br />

balance of the FGD. Thus, a heat potential of about 30 MW th can<br />

be recovered by cooling down the flue gases in line 1.<br />

Kraftwerk Mehrum GmbH operated a steam/air preheater<br />

before the regenerative Ljungstroem air preheater. This generally<br />

supports special load cases such as very low air inlet temperatures<br />

(in winter) or at start-ups and prevents corrosion at<br />

the cold flue gas end of the regenerative air preheater. However,<br />

in the Mehrum power plant the steam/air preheater is nearly<br />

continuously in operation due to the problematic coal. Thus,<br />

besides the condensate preheaters, the air preheating before<br />

the regenerative preheaters has been considered as a possible<br />

heat sink for the heat recovery system.<br />

Four different alternatives for heat recovery have been examined:<br />

A Condensate preheating<br />

The extracted heat is transferred to a condensate preheater.<br />

It is switched in a bypass to the existing LP2 preheater and<br />

takes over part of its heat flow.<br />

B Combined condensate and air preheating (One cycle)<br />

The heat recovery cycle is designed preferably for air preheating.<br />

In case the heat flow needed at the air preheater is<br />

lower than the out-coupled one, the excess heat is transferred<br />

via a three-wa y valve to the condensate preheater<br />

bypassing the existing LP1 preheater.<br />

C Combined condensate and air preheating (Two cycles)<br />

Via two separate heat recovery cycles condensate and air<br />

preheating is possible. The first stage flue gas cooler is for<br />

the condensate preheating cycle because of the higher temperature<br />

level needed. Herewith the condensate preheater<br />

LP3 is bypassed. The second stage flue gas cooler is integrated<br />

in the air preheating cycle.<br />

D Air preheating<br />

The extracted heat is transferred to the water/air preheaters.<br />

The following table gives an overview on the relevant data of<br />

the different alternatives. Based on the same total heat recovery<br />

in each case, the recovered heat has been transferred to<br />

miscellaneous heat sinks. The increase in electricity generation<br />

achieved is then dependent on the electrical efficiency of the<br />

steam recovered at the substituted condensate or air preheater.<br />

A Condensate preheating B Combined (one cycle) C Combined (two cycles) D Air Preheating<br />

Heat Recovery [MW th ] 30 30 30 30<br />

condensate air side heat transfer [MW th ] 30 | – 6 | 24 6 | 24 – | 30<br />

electrical efficiency of steam recovered<br />

(condensate/air side)<br />

max. increase<br />

in electricity generation<br />

mid. increase<br />

in electricity generation<br />

[%] 14,72 | – 5.6 | 24.0 21.8 | 24.0 – | 24.0<br />

[MW el ] 4.4 6.1 7.1 7.2<br />

[MW el ] 4.4 5.5 6.5 6.5<br />

operation mode (range of thermal<br />

power usage during running time)<br />

[-]<br />

continuous<br />

(100 % | – %)<br />

discontinuous<br />

(100 % | 90 %)<br />

discontinuous<br />

(100 % | 90 %)<br />

discontinuous<br />

(– % | 90 %)<br />

absolute investment cost [%] 100 115 133 89<br />

specific investment cost per MW el [%] 100 92 90 60


Realisation<br />

The given percentage means the fraction of thermal energy<br />

converted in the turbine/generator to electricity. It can be<br />

determined by energy balances comparing the condensate/air<br />

preheater and turbine/condensator enthalpy differences.<br />

Furthermore, the operation mode of the heat recovery system<br />

has to be considered. Whereas the heat recovery system<br />

for pure condensate preheating can be applied about 100% of<br />

the power plant operation time, the other concepts with air<br />

preheating have a discontinuous performance characteristic<br />

because of the temporally varying load of the air preheaters.<br />

Thus, the mid increase in electricity generation averaged over<br />

the year is somewhat lower than the maximum possible<br />

increase. The final evaluation of the profitability of the different<br />

heat recovery systems was done by the operator considering<br />

operation mode and time dependent load of the components.<br />

In the Mehrum case, the heat recovery system for single<br />

air preheating turned out to be the most efficient and most<br />

profitable solution. Following table shows the boundary conditions<br />

of the realisation:<br />

Heat recovery [MW th ] 30<br />

Increase in electricity generation [MW el ] 6,5<br />

Per cent increase electricity generation [%] 0,9<br />

Increase of power plant efficiency [%-points] 0,37<br />

Reduction of CO 2 emissions [t/ a (max)] 33.000<br />

Fuel saving (hard coal) [t/ a (max)] 12.250<br />

Babcock Borsig Steinmüller GmbH was commissioned with the<br />

heat recovery retrofit at the Mehrum power plant in October<br />

2002. The contract was made on turn-key basis. Besides the<br />

several heat exchangers on flue gas side, on air side and on<br />

water side, this includes all disassembly, all assembly, delivery<br />

and assembly of pipe work, system technology of the water<br />

cycle, insulation and basic engineering for the control system.<br />

A further request of Kraftwerk Mehrum GmbH was the integration<br />

of the heat recovery control system into the main control<br />

system of the power plant.<br />

The plant was shut down from end of May 2003 to mid-July<br />

2003 for the erection. The time being until commissioning was<br />

less than 10 months.<br />

Activities prior the power plant shutdown (January – May 2003)<br />

In order to meet the tight schedule, the site was already<br />

installed in January 2003. All work which did not require the<br />

shutdown of the power plant was carried out in advance.<br />

Babcock Borsig Steinmüller GmbH assembled approximately<br />

140 tons of pipe work. The main cycle was carried out DN 400<br />

size. A new platform was integrated into the steelwork in the<br />

boiler house for the components of the water cycle. This included<br />

the installation of the pump station, dosing station, pressure<br />

control station, steam heater and the bypass control valve.<br />

Figure 2:<br />

Concepts for heat recovery<br />

A Condensate Preheating<br />

B Combined Condensate and Air Preheating (One heat transfer cycle)<br />

C Combined Condensate and Air Preheating (Two heat transfer cycles)<br />

D Air Preheating<br />

Conventional <strong>Energy</strong> | Heat Recovery Systems<br />

16 | 17


In May 2002, the complete water cycle with by-passes around<br />

the flue gas cooler and around the four air preheater could<br />

already be commissioned and had successfully been approved<br />

by TÜV. At the same time the full plastic heat exchanger modules<br />

of the flue gas cooler were delivered to site and storaged<br />

outside on the power plant area.<br />

All above described erection activities proceeded without<br />

any negative impact on the operation of the power plant.<br />

Activities during the power plant shutdown (28 May – 16 July)<br />

The power plant was shut down on 28 May 2002. This was the<br />

beginning of seven weeks hard work in two shifts. During this<br />

period disassembly and assembly work were required in the<br />

boiler house and in the FGD building which had to be coordinated<br />

with different further activities in that area, like the<br />

refurbishment of the ductwork in FGD Unit 2. Major activities<br />

in this period were:<br />

– Disassembly of approx. 50 t of flue gas ductwork<br />

– Assembly of more than 60 t of casing and ductwork<br />

– Foil lining of 300 m² area by G-FLON fluor plastic foil<br />

– Renewal of four air preheaters with an overall weight of<br />

more than 160 t<br />

– Installation of air preheater pipe work<br />

– Assembly of five flue gas cooler moduls into the casing.<br />

Particularly concerning the time schedule, the erection was a<br />

“precision landing”.<br />

heater. This bypass operation proceeded successfully. The pipe<br />

work of the flue gas cooler was installed during operation of<br />

the power plant.<br />

The following weekend shutdown was used to integrate the<br />

flue gas cooler into the water cycle. From this moment the air<br />

preheating was implemented by using waste heat from the flue<br />

gas. The previously used steam was saved.<br />

This first operation time was also used to analyse the exact<br />

noise spectrum of the cooler and to decide on counter measures.<br />

The success of counter measures is much higher if it is<br />

based on practical measurements instead of theoretical calculation.<br />

To install the anti-noise sheets into their exact positions<br />

a weekend shutdown could be used.<br />

All in all the commissioning of the POWERISE® heat recovery<br />

system took place without essential problems during August<br />

2002 due to the detailed planning, expediting and the good cooperation<br />

of all involved parties.<br />

Performance and benefits<br />

of the heat recovery system<br />

Performance<br />

The performance data of the heat recovery system are shown<br />

in the figure 4. To consider dust contaminated heat exchanger<br />

surfaces the performance test was carried out after three<br />

months operation time. The performance test approved the<br />

warranted characteristics of the system.<br />

Figure 3:<br />

Inlet Cross Section of Flue Gas Cooler after assembly<br />

Commissioning of the power plant with POWERISE®<br />

heat recovery system<br />

After seven weeks of revision shutdown, the commissioning of<br />

the power plant including the new water cycle started on 16<br />

July 2002. Kraftwerk Mehrum GmbH could restart the power<br />

plant already on 21 July 2002. During the first two weeks the<br />

heat recovery system operated via bypass around the flue gas<br />

cooler. The cycle water was heated by the steam heater and the<br />

air preheating was realised by the new water heated air pre-<br />

Recovered Heat ≈ 30 MW th<br />

additional electrical output ≈ 6,5 Mw el – net efficiency increase of ≈ + 0,37 %-Points<br />

saving in fuel consumption ≈ 11.570 tSKE/a<br />

resulting CO 2 -Emission reduction ≈ 31.000 tCO 2 /a<br />

based on net performance von 3.400 GWh/a<br />

Figure 4:<br />

Combustion air Preheating by Heat Recovery (100 % Load)<br />

Operating behavior<br />

Besides the increase of the power plant performance the automation<br />

of the startup ensured a more convenient startup of<br />

the air preheaters and a more constant regulation of the flue<br />

gas outlet temperature downstream of the main air heater.


A constant flue gas outlet temperature ensures dry conditions<br />

in the air heater and therefore, reduces the fouling of the air<br />

heater. The operation of the first six months already proved<br />

that for this reason the automation increases the operation<br />

time between shutdowns that are required by the main air<br />

heater.<br />

In the main load cases the air preheating is realised completely<br />

by using flue gas heat from the full plastic flue gas<br />

cooler. During startup, shutdown and “light load” the heat is<br />

partly provided by the steam heater which is part of the water<br />

cycle.<br />

Benefits<br />

Benefits of the heat recovery system:<br />

be identified in advance and have to be adapted to individually.<br />

At Mehrum power plant the operator and the supplier of the<br />

system cooperated closely in order to optimise the flue gas<br />

cooler system regarding the following items:<br />

Cleaning of the heat exchanger surface<br />

After one year of operation on the highest and on the lowest<br />

spacer level accommodations of dust were identified. All other<br />

spacers stayed clean because they have been cleaned automatically.<br />

Modifications on the highest and the lowest spacer level<br />

were retrofitted with sprayer level. This modification was successful<br />

and after further operation the cleaning effect had been<br />

reached at all spacer levels.<br />

– Recovered heat 30 MW th<br />

– Resulting additional electrical output 6.5 MW el<br />

– Increase of overall efficiency 0.37%, abs.<br />

– Saving of hard coal 12,250 t SKE/a<br />

– Reduction of CO 2 emissions 33,000 t CO 2 /a<br />

Cost and realisation:<br />

– Cost, turn key 4.7 million Euros<br />

– Duration of shutdown 7 weeks<br />

– Total realisation time 10 month<br />

Figure 5:<br />

Highest spacer level<br />

Without sprayer level<br />

Highest spacer level<br />

With sprayer level<br />

The balance of the reduction of CO 2 emissions results from the<br />

following method:<br />

1 Theoretical thermodynamic calculation of the additional<br />

electrical output which is equivalent to the recovered heat.<br />

2 Recalculation of fuel consumption based on result of 1., specifically<br />

per MW el and conversion into CO 2 emission values.<br />

3 The recovered heat is continuously measured and recorded.<br />

The total of the year is converted according to 2. into the<br />

reduction of CO 2 emissions.<br />

The Return on Investment (calculation based on fuel saving<br />

and interests of 12 %) amounts to approx. eight years. Further<br />

returns were realised by selling parts of the emission rights. In<br />

case of Mehrum this happened within the “Hessen Tender”. The<br />

evaluation was executed according to the method described<br />

above and approved by the German TÜV.<br />

Operation experience<br />

The operation of the power plant with the integrated heat<br />

recovery system began in September 2003. The installed system<br />

provided all warranted performance and availability characteristics.<br />

However, each power plant has individual frame<br />

conditions and therefore, not all influences from operation can<br />

Tightness of the casing<br />

At the sealing area between modules and casing a too high flue<br />

gas emission was detected. In order to homogenise the pressure<br />

on the sealing an additional pressure point was installed.<br />

In addition the sealing material was changed from PTFE to a<br />

rubber type. After that the specified values of flue gas tightness<br />

were verified.<br />

Tightness of the tubes<br />

The record of the make-up water supply indicated leakages of<br />

pressure tubes which had to be plugged or repaired in greater<br />

numbers than expected.<br />

The local gas velocities were investigated by a computer flow<br />

model. This indicated too high velocity vectors crosswise to the<br />

main flow direction. They were caused by the upstream fan,<br />

which produced a swirl flow. By assembling flow straightener<br />

plates into the fan the swirl and further tube damages could be<br />

nearly avoided.<br />

After seven years of operation the number of damaged<br />

tubes is below 2 %.<br />

Conventional <strong>Energy</strong> | Heat Recovery Systems<br />

18 | 19


Mounting of the anti noise plates<br />

In order to minimize the acoustic noise anti-noise plates made<br />

from PTFE were installed. Due to the gas flow these PTFE-Plates<br />

were partly unhooked, which caused tube damages. This problem<br />

could be settled by a modified fixing of the plates and with<br />

the above mentioned flow straightener plates of the booster fan.<br />

raised by 35 MW el . and the overall efficiency increase could be<br />

verified as shown in the following figure. In addition, the<br />

installed POWERISE® system is easy to maintain as even after<br />

seven years of operation the number of damaged tubes is<br />

below 2%.<br />

Corrosion protection of the casing<br />

The flue gas cooler casing and the outlet hood were protected<br />

against corrosion by a fluor plastic lining with a thickness of<br />

1.5 mm. In the bottom area local damages of the foil material<br />

produced several flue gas leakages below the foil which caused<br />

corrosion of the casing at the affected areas. The affected areas<br />

of the casing were renewed and the foil protection in these<br />

areas was executed in a modified manner with an increased<br />

thickness, an increased number of fixing points and in addition<br />

with a flake protection of the casing below the foil. With<br />

these modifications no further problems occurred.<br />

Summary of operating experience<br />

To ensure the positive operation experience the heat recovery<br />

system requires a periodical control (ideally once a year) especially<br />

regarding the functionality of the cleaning system and<br />

the record of the make-up water supply. A close co-operation<br />

between operator and supplier of the system has influenced<br />

the positive operating experience significantly. On this basis<br />

the system was optimised successful regarding cleaning, tightness,<br />

and corrosion protection. Up to now the power plant<br />

availability was never limited by the heat recovery system.<br />

Required works could be realised in the frame of shutdowns<br />

which were not caused by the heat recovery system.<br />

Figure 6:<br />

Total Efficiency Increase<br />

Based on the real fuel price development and the CO 2 certificate<br />

stock, the ROI could be reduced to five years.<br />

Conclusion<br />

The increase of power plant efficiency and the reduction of carbon<br />

dioxide emissions are a worldwide acknowledged measure<br />

for improving the protection of environment and climate. An<br />

essential way of achieving this objective is the comprehensive<br />

modernisation of existing fossil fuel fired power plants whose<br />

lifetime is ensured, i. e. through a life extension study.<br />

Advanced heat recovery systems open up new possibilities<br />

for power plant efficiency increase and thus, for the production<br />

of “Green Megawatts” electricity by reducing the emission of<br />

waste heat into the environment.<br />

This heat recovery to below acid dew point is realisable<br />

upstream of a wet FGD or upstream of a wet stack which is<br />

resistant against fluid acids.<br />

In co-action with retrofits at the turbine and at the cooling<br />

tower, the electrical output of Mehrum power plant could be<br />

Figure 7:<br />

Based on the real fuel price development and the CO 2 certificate<br />

stock, the ROI could be reduced to five years<br />

The flue gas heat recovery system, planned and constructed by<br />

Babcock Borsig Steinmüller GmbH and meanwhile state-ofthe-art<br />

in new built fossil fired power plants, has proved to be<br />

an uncomplicated retrofit with a safe and economical operation<br />

experience in the Mehrum power plant. Especially in the<br />

Arab states there is a great chance to implement similar heat<br />

recovery systems into fossil fired power plants in order to operate<br />

power plants with an increased profitability and to protect<br />

our environment at the same time.


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MWM GmbH, Company Headquarters<br />

Based in Mannheim since 1871 when it has been founded by Carl Benz, the inventor of the automobile.<br />

Decentralized Power Generation<br />

in Combination with Heat and Cold Supply<br />

MWM GmbH<br />

Carl Benz, the inventor of the automobile, founded the “mechanical workshops”<br />

in Mannheim in 1871. Today MWM GmbH is one of the world’s leading suppliers of very efficient<br />

and environmental friendly systems for energy production.<br />

The company, based in Mannheim, Germany, draws on over<br />

140 years of experience in the development and optimisation<br />

of combustion engines for natural gas, special gases, and diesel.<br />

Together with its partner Descon Power Solutions from Lahore,<br />

Pakistan, we are going to extend its market presence in Pakistan.<br />

Since 2009, Descon Power Solution, a subsidiary of<br />

Descon, one of the leaders in engineering, chemicals and power<br />

industry within the region, offers services such as engineering<br />

& design, supply & installation, commissioning operation &<br />

maintenance, supply of spare parts and emergency trouble<br />

shooting for the supplied generator sets.<br />

There are many reasons for the increased popularity of natural<br />

gas to generate both power and energy in the world. While<br />

coal is the cheapest fossil fuel for power generation it is by far<br />

the most damaging as burning coal releases the highest levels<br />

of pollutants and greenhouse gases into the atmosphere.


www.mwm.net<br />

Full value chain by MWM.<br />

Engine. Systems. Service.<br />

Engine / Genset Compact Module Turnkey Service<br />

MWM develops and manufactures<br />

customized solutions for individual requirements<br />

Recent regulations and public pressure have encouraged the<br />

power sector to come up with new methods of generating<br />

power and energy. New gas firing technologies are allowing<br />

natural gas to play an increasing and decisive role in the generation<br />

of clean electricity.<br />

An efficient and uninterruptible power supply has become a<br />

major challenge for industries around the world in the last decade.<br />

Higher costs for energy and shortages of power supply<br />

from the grid have brought the private, public and industrial<br />

sector to search for a decentralised, efficient and clean way to<br />

produce energy. Power generation with gas generator sets as<br />

well as cogeneration (CHP) or trigeneration (CCHP) is one of the<br />

most economical and affordable ways to produce energy. These<br />

technologies have been proved and tested in the market for<br />

decades, therefore, efficiencies up to 90 % can be achieved<br />

today by producing energy together with heat and cold.<br />

The application of combined heat & power or cogeneration,<br />

in which the waste heat from a gas fired engine is used for the<br />

heating of factory buildings or houses, for the use in working<br />

processes as well as for generating more electricity, is a highly<br />

efficient and cost effective power generation solution. The efficiency<br />

of this application drops in hot climate when there is no<br />

need for heating in the summer or if there is no heat demand<br />

for other processes. In order to avoid this problems the power<br />

generation and heat supply can be combined with an absorption<br />

chiller to provide a profitable centralised cooling, for<br />

Conventional <strong>Energy</strong> | Decentralized Power Generation<br />

22 | 23


MWM container- <strong>Energy</strong>, efficiency, ecology –<br />

all under one roof<br />

MWM’s most efficient genset<br />

with a full power range of up to 4.300 kWel<br />

example, for office or public buildings. This application is<br />

called trigeneration or combined cooling, heat & power and is<br />

highly efficient throughout the whole year, even if there is no<br />

heat demand at all. The turn from simple power production to<br />

cogeneration, and these days to CCHP facilities, is a clear indicator<br />

that the majority has realised the advantages of decentralised<br />

power generation. The high efficiency from trigeneration<br />

all year round and the maximum use of the waste heat for<br />

cooling and heating lead to extensive savings and lower emission<br />

levels.<br />

In Pakistan, to date, we have supplied around 115 MWe of<br />

installed power capacity in more than 20 gas fired power<br />

projects that use different gas types with most of them running<br />

on natural gas. One of the latest projects realised in Pakistan<br />

was a 5.4 MWe power plant for the National Bank of Pakistan,<br />

commissioned in 2011. Four generator sets of the series<br />

TCG 2020 V16 K where installed on a turnkey basis along with<br />

two years of operation and maintenance. The high power output<br />

of 1,350 kWe of each generator set, an electrical efficiency of<br />

41% along with the use of the waste heat for the installed chillers<br />

for the cooling of the building ensures an efficient and<br />

clean way of energy supply to the customer. Also the banking<br />

industries sensitivity for information security and, hence, the<br />

demand for a reliable captive power generation can be achieved<br />

by the new power plant.<br />

AEL, one of Pakistan’s Independent Power Plants (IPP), supplies<br />

32 MWe of electric power to the national grid. Based on<br />

eight gensets with an electrical output of 3.9 MWe each, the<br />

power plant reaches an electrical efficiency of more than 39 %.<br />

At the date of commissioning in 2008, this was one of the highest<br />

efficiencies for gas generator sets. Today the TCG 2032<br />

engine family achieves electrical efficiencies up to 43.5 % at<br />

4,300 kWe electrical output. Descon is providing operation and<br />

maintenance to the plant until today.<br />

One of the latest projects in which a trigeneration system<br />

was installed was at the Antalya airport, Turkey (Antalya Havalimani).<br />

This system provides 8 MW of electrical power, while<br />

the waste heat is used for heating purposes and the exhaust<br />

gas heat is used in absorption chillers for cooling purposes.<br />

Due to the trigeneration technology the system’s overall effi-


Shaping the future.<br />

We need energy to power our future and Wintershall is working hard<br />

to find and develop new oil and gas deposits all over the world.<br />

We have both state-of-the-art technology and strong partners at our<br />

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Job-Nr.: 286-1331 • Image Anzeige Plattform im Meer - UK • Kunde: Wintershall • Medium: <strong>Ghorfa</strong> • Farben: 4c · Format: B 210 x H 135 mm (+ 3mm Beschnit<br />

40080_286-1331_AZ Bohrinsel_210x135.indd 1 08.08.11 09:33<br />

ciency could be up to 90 % and the system’s overall energy consumption<br />

could be decreased by 6 % compared to the conventional<br />

thermal power from coal. The special feature of this<br />

power plant in Antalya is the use of Liquified Natural Gas which<br />

is evaporized and then used as fuel for the natural gas generator<br />

sets due to the unfinished natural gas grid at site.<br />

We offer generating units with an electrical power from 400<br />

kWe to 4,300 kWe and can provide solutions for projects with<br />

up to 100 MWe. The highest efficiencies and well founded<br />

knowledge of the challenges for combined heat and power<br />

make MWM one of the leading providers for decentralised<br />

power production.<br />

After the introduction of the TCG 2020 K in April 2010 the<br />

product program of the successful series is expanded now by a<br />

genset with 1,000 kWe. The new generating unit with its electrical<br />

efficiency up to 40 % offers operators a wide range of<br />

applications on an excellent price-performance ratio. Low<br />

operation costs and minimal maintenance costs together with<br />

dynamic load response capabilities and robustness of the wellproven<br />

series TCG 2020 K ensure more profit and shorter payback<br />

periods for the customer. An improved reliability at bad<br />

air intake quality through nano-coated charge-air coolers has<br />

also been implemented. The generator set is prepared for the<br />

operation with natural gas with a minimum methane number<br />

of 70.<br />

Recently the new improved TCG 2016 C power genset series<br />

for the use of biogas was introduced. It is available for both 50<br />

and 60 Hz. The TCG 2016 C genset continues to be available in<br />

the V8, V12, and V16 variants. Systematic optimisations of the<br />

ignition and control system TEM (Total Electronic Management)<br />

ensure more even load balancing over all cylinders. The<br />

anti-knock control has been further improved, and a new cylinder<br />

balancing concept has been introduced. A package including<br />

an optimised butterfly valve construction, a new actuator<br />

for the gas mixer, and the nano-paint-coated mixture cooler<br />

make the genset even more durable and less susceptible to<br />

external influences.<br />

Thanks to these efficiency-boosting measures, the new<br />

gensets reach a maximum efficiency of 42.8 % with biogas.<br />

Conventional <strong>Energy</strong> | Decentralized Power Generation<br />

24 | 25


Renewable <strong>Energy</strong><br />

For a number of years the issue of renewable energies has become increasingly<br />

important in the Arab world and in Germany. While Germany pursues<br />

the energy turnaround, projects and facilities have been implemented in Arab<br />

countries from Morocco in the west to Oman in the east. This includes<br />

solar energy, hydropower and wind power generation. While Germany is a key<br />

global player in renewable energy technologies, the Arab world offers<br />

ideal conditions for the implementation of solar and wind projects. The will to<br />

further strengthen the role of renewable energies has been manifested<br />

in Abu Dhabi’s successful bid for the International Renewable <strong>Energy</strong> Agency.<br />

Renewable energy projects fostered by German companies and initiatives<br />

in North Africa are to build a comprehensive Arab-German cooperation in this<br />

field. Next to oil and gas, the renewable energies will prove to be a major<br />

field of an Arab-German energy partnership. This chapter explores projects of<br />

reference in this sector from North Africa to the Arab Gulf states.<br />

Renewable <strong>Energy</strong><br />

26 | 27


Parabolic trough collectors at Andasol 3 plant in Spain<br />

Solar Thermal Power Plants –<br />

Egypt’s Kom Ombo and Others<br />

Ferrostaal AG<br />

Gerret Kalkoffen | Head of Business Development Power & Solar<br />

Ferrostaal is a global provider of industrial services in plant construction and engineering.<br />

As a technology-independent system integrator, the company offers development and<br />

management of projects, financial planning, and construction services for turnkey installations<br />

in the segments of petrochemicals, power & solar and industrial plants.<br />

The worldwide demand for power is growing and both the costs<br />

of fossil fuels as well as the dependencies on its import are<br />

bound to increase as supplies tighten. Simultaneously the<br />

awareness of climate change is promoting renewable energies<br />

for sustainable growth. Solar thermal power plants are such<br />

renewable energy technologies. They concentrate sunlight<br />

with mirrors, e. g. in parabolic trough shape, and produce heat<br />

energy that is fed into a steam turbine which drives a generator<br />

and produces electricity. The great benefit is that electricity<br />

can be provided at any time of the day – because energy can be<br />

stored in tanks as heat, which is far less expensive than storing<br />

electricity in batteries. Today, with no costs for feedstock and<br />

due to technology, scale, and experience, solar thermal power<br />

plants are cost competitive and reliable.<br />

The World Bank has committed to contributing to the deployment<br />

of solar thermal power plants in emerging countries with<br />

appropriate solar conditions. The International Finance Corporation<br />

(IFC), part of the World Bank Group, manages the Clean<br />

Technology Fund (CTF). The CTF has a total volume of US $ 5 billion,<br />

of which US $ 750 million are dedicated to solar thermal<br />

power plants in the Middle East and North Africa. These funds<br />

have been pre-assigned to 13 projects under soft-loan conditions:<br />

40 years repayment period, 10 years grace period, 0%<br />

interest and a service charge of 0.25 %. This way, the CTF is a<br />

major supporter of technological advancements and the establishment<br />

of sustainable energy production.


Aerial view of Andasol 3 plant with solar field and power block<br />

Kom Ombo – Egypt’s next step towards large<br />

scale solar thermal power<br />

Integrated solar combined<br />

cycle power plants<br />

Kom Ombo is one of the 13 currently listed CTF projects, located<br />

near the village of Kom Ombo, Egypt. It constitutes a great step<br />

in the five-year plan, designed to establish Egypt as one of the<br />

top producers of solar energy in North Africa. The solar thermal<br />

power plant with parabolic trough technology and a capacity<br />

of approximately 100 MW is scheduled to start construction<br />

in 2012 and be completed by 2017, with a total investment of<br />

US $ 525 million. In order to support Kom Ombo’s realisation,<br />

the World Bank has allocated US $ 270 million, and further<br />

funding is expected by other international institutions such as<br />

KfW Banking Group and the African Development Bank.<br />

The location of Kom Ombo enables the use of Nile water for<br />

the plant’s cooling and has favourable conditions in terms of<br />

wind speeds and atmospherics. Most importantly, Kom Ombo’s<br />

location promises high energy yields due to its excellent direct<br />

normal irradiation (DNI) of around 2,500 kWh/m²/year, which is<br />

approximately 25 % higher than in Spain. Depending on the<br />

exact configuration, the plant will be able to supply about<br />

200,000 people with CO 2 -free electricity.<br />

Little known to most, Kom Ombo, with its parabolic trough<br />

system, has a historic predecessor. In 1912, the entrepreneur and<br />

solar visionary Frank Shumann developed the first parabolic<br />

solar collectors. They were installed near to the Nile, 15 miles<br />

south of Cairo, and gave an indication for the vast solar energy<br />

potential to be harvested.<br />

More recently, another solar thermal project with parabolic<br />

trough collectors was completed in Egypt. Near the town of<br />

Kuraymat, an existing 140 MW gas-fired power plant was complemented<br />

by a solar field, also known as an integrated solar<br />

combined cycle (ISCC). This solar field supplements the burning<br />

of fossil fuel by feeding its thermal energy to the steam turbine<br />

of the conventional power plant, with an equivalent of 20<br />

MW.<br />

Committed to localisation, approximately 60 % 1 of the value<br />

for the solar field was generated locally, while the operation and<br />

maintenance is completely done by local industry. Looking<br />

ahead, Egypt even plans to increase the local content further.<br />

One key success factor was the involvement of strong local<br />

construction and erection companies, indicating the high percentage<br />

of local value creation in labour intensive solar thermal<br />

power plants – a unique advantage over photovoltaic systems.<br />

Further ISCC projects in the MENA Region are Hassi-R’mel and<br />

Ain-Ben-Mathar.<br />

Hassi-R’mel is located in Algeria and has a total capacity of<br />

150 MW, of which 25 MW are produced from solar energy. The<br />

parabolic trough based plant is under construction and sched-<br />

1 Middle East and North Africa Region Assessment of the Local<br />

Manufacturing Potential for Concentrated Solar Power <strong>Projects</strong><br />

(World Bank, Ernst & Young, Fraunhofer ISI/ISE)<br />

Renewable <strong>Energy</strong> | Solar Thermal Power Plants<br />

28 | 29


Outlook:<br />

Bright future for solar thermal power plants<br />

uled to start operation by the end of 2011. Ain-Ben-Mathar, under<br />

construction in Mathar, Morocco, also uses a parabolic trough<br />

system, whereas 30 MW of 470 MW total capacity, is solar generated.<br />

Compared to Kuraymat, both Hassi-R’mel and Ain-Ben-<br />

Mathar have less local content, because main components and<br />

equipment for the project are imported from international markets1.<br />

All three ISCC plants were also supported by the World Bank,<br />

then under the Global Environmental Facility. They stand as<br />

proof that renewable projects can be executed successfully in<br />

North Africa and the Middle East region with great benefit to<br />

their local environments.<br />

Andasol 3 – 50 MW parabolic trough plant<br />

with 7.5 hours of storage<br />

Andasol 3 is a parabolic trough based system located near Guadix,<br />

Spain, and has a capacity of 50 MW. With commissioning<br />

successfully under way and commercial operation planned to<br />

begin in late 2011, Andasol 3 is one of the world’s first solar thermal<br />

power plants with an innovative 7.5 hour molten salt storage<br />

system. It is characterised by a favourable combination of<br />

high energy density, cost efficiency, and ecological safety, ultimately<br />

enabling the plant to cover the main off-take hours.<br />

The molten salt is stored in two large, insulated, steel tanks,<br />

each with a capacity of approximately 30,000 tons. During the<br />

day, the solar field is designed to provide its energy both to a<br />

steam generator to drive the turbine and generator as well as to<br />

the storage system. Via a heat exchanger fed by the solar field,<br />

the salt flowing from one cold tank is heated from 290 °C to<br />

approx. 390 °C and then stored in the other hot tank. Once the<br />

sun has set and the solar field no longer generates heat, the flow<br />

of the salt reverses. The salt from the hot tank now provides its<br />

energy to the steam generator and flows back to the cold tank.<br />

This way, up to 7.5 hours of full load electricity production are<br />

possible without sunlight. Ferrostaal arranged the financing and,<br />

together with experienced partners, is the EPC-general contractor<br />

of Andasol 3.<br />

The refinancing of the investment volume of approximately<br />

€ 380 million is secured by the Spanish feed-in tariff. The tariff<br />

guarantees producers a fixed price for the upcoming 20 years<br />

with a premium over market prices. This way, both the additional<br />

costs of a young technology are considered, as well as the<br />

need for financial security due to the significant initial investment<br />

of solar thermal power plants, while later O & M costs are<br />

low.<br />

Using the sun as energy source, solar thermal power plants<br />

operate without CO 2 emissions. A power plant with 50 MW and<br />

7.5 hours storage such as Andasol 3, reduces CO 2 emissions by<br />

up to 125,000 tons/year. Additionally, compared to energetically<br />

and/or chemically intensive technologies such as photovoltaic,<br />

the life cycle assessment for solar thermal power plants<br />

is better.<br />

The successfully constructed ISCC projects have increased the<br />

experience and expertise for solar thermal power plants in the<br />

Middle East and North Africa. <strong>Projects</strong>, such as Kom Ombo, will<br />

ensure further local content and economical advancement by<br />

attracting international companies. The main drivers are the<br />

growing populations’ increased electricity demands. In order to<br />

maintain peaceful societies that prosper these demands must<br />

be met – ideally ecologically friendly from the start to limit the<br />

carbon footprint.<br />

Kom Ombo is an excellent example for local job creation,<br />

transfer of know-how, and sustainable energy production. It<br />

proves that solar thermal energy is optimally suited for desert<br />

conditions and can be quickly implemented, given adequate<br />

support.<br />

Setup of solar thermal power plant with storage<br />

Integrated solar combined cycle plant setup


Parabolic trough collectors at Andasol 3 plant in Spain<br />

Renewable <strong>Energy</strong> | Solar Thermal Power Plants<br />

30 | 31


Shams One<br />

100 MW Concentrated Solar Power Plant<br />

Fichtner GmbH & Co. KG<br />

Matthias Schnurrer | Director Gulf Area and<br />

Martin Schmitt | Project Engineer<br />

As the first major hydrocarbon-producing economy in the Gulf Region, Abu Dhabi has established<br />

its leadership position in renewable energies by launching the Abu Dhabi Future <strong>Energy</strong> Company<br />

(ADFEC). This company is heading the MASDAR (Arabic: source) Project, whose main purpose is the<br />

development of Masdar City, which will consume only solar power and other renewable energies.<br />

Solar technologies are rapidly becoming a major focus worldwide<br />

as a sustainable energy source, and the MASDAR Initiative,<br />

Abu Dhabi’s landmark renewables program, is driving the<br />

adop tion of advanced solar technologies in the UAE.<br />

ADFEC is already operating Masdar City’s 10 MW solar PV<br />

plant that came on stream in 2009. Another prime project being<br />

developed by ADFEC is a 100 MW concentrated solar power plant,<br />

known as Shams One Solar Power Plant (Arabic: sun), which will<br />

play a significant role in promoting renewable energies, as it will<br />

be one of the biggest solar thermal power plants in the world<br />

and is the first large-scale solar power generation plant in the<br />

Gulf Region.<br />

Shams One Plant construction site<br />

Shams One is owned by Shams Power Company, a special purpose<br />

vehicle comprising Masdar, with a 60 % stake, in a joint<br />

venture with Abengoa Solar, Spain, and Total, France, each with<br />

20 % holdings.<br />

Fichtner was involved in this project from day one and supported<br />

ADFEC as its technical consultant and transaction advisor<br />

for the entire project development phase. Fichtner’s services<br />

included preparation of the feasibility study, conceptual design<br />

and drawing up tender documents as well as support during the<br />

transaction process up to award of contract. Fichtner is currently<br />

acting as owner’s engineer, being responsible for design review,<br />

site management and supervision of commissioning up to commercial<br />

operation of the power plant.


Shams One Plant construction site<br />

Shams One, which is being implemented in a 24 month project<br />

construction period, is located in the Emirate of Abu Dhabi<br />

approximately 120 km south-west of the city of Abu Dhabi<br />

adjacent to the town of Madinat Zayed on a plot of about<br />

1.8 km × 1.4 km (2.5 km²). This is mainly covered with the solar<br />

field consisting of 768 solar collector assemblies and 258,000<br />

mirrors, to be supplied by Abengoa Solar. The solar collector<br />

assemblies are being put together on site in a dedicated manufacturing<br />

shop that is to be dismantled after commissioning of<br />

the power plant.<br />

Shams One deploys parabolic trough technology to convert<br />

solar irradiation into solar heat, which is used to produce steam<br />

for power generation. Electricity is generated by a steam turbine<br />

generator with air-cooled condenser.<br />

The principle of the process is illustrated in figure “Overall<br />

process flow schematic”. The solar field is a modular distributed<br />

array of solar collector assemblies (SCA) connected in parallel via<br />

a system of insulated pipes. On the cold side, heat transfer fluid<br />

(HTF) coming from the power block enters the solar field at a<br />

temperature of about 300 °C. In the solar field the HTF is distributed<br />

equally to all 192 loops, with each loop consisting of four<br />

SCAs. In the loops, sunlight concentrated by the parabolic reflectors<br />

heats the HTF to a temperature of almost 400 °C, which is<br />

the upper limit for HTF systems to prevent decomposition of the<br />

HTF. The hot HTF leaving the loops is collected and returned to<br />

the power block.<br />

Dual fuel fired HTF heaters are installed in parallel to the<br />

solar field to even out fluctuations in solar irradiation. Further,<br />

these heaters improve the plant’s start-up capabilities, because<br />

warm-up can already be started before sunrise. Although it is<br />

intended to run these heaters for only a limited number of<br />

hours to reduce fuel consumption, they have not only the ability<br />

to support the solar field in case of, for example, cloud passage,<br />

but they are also designed for full load operation of the plant.<br />

This enables the plant to provide its full power output even at<br />

night in case it should be requested to do so by the offtaker. Due<br />

to a redundant arrangement, Shams Power Company was even<br />

able to contractually guarantee a 50 MW firm output capacity at<br />

any time.<br />

Renewable <strong>Energy</strong> | Shams One<br />

32 | 33


The interface between the solar field and the power block is the<br />

solar steam generator (SSG). Here, the power block receives the<br />

solar heat harvested in the solar field. The SSG is a natural circulation<br />

boiler heated by the HTF from the solar field. It consists of<br />

a preheater, an evaporator and a superheater arranged in counterflow<br />

arrangement to the HTF. The SSG produces steam at a<br />

temperature of about 380 °C. To raise the efficiency of the turbine,<br />

the steam from the SSG is further superheated in the dual<br />

fuel fired booster heater to a temperature of 540 °C.<br />

The superheated steam is supplied to the steam turbine to<br />

generate power. An air-cooled condenser condenses the turbine<br />

exhaust steam flow and the condensate is returned to the solar<br />

steam generator. An air-cooled condenser was selected because<br />

no cooling water is available at the site.<br />

With this configuration of a solar steam generator combined<br />

with a fuel fired superheater, which is specific to Shams One,<br />

most of the energy is provided by solar irradiation and fuel is<br />

only needed to attain the top operating temperature.<br />

By applying the booster heater principle, steam parameters<br />

are similar to those in conventional power plants. This allows<br />

the use of standard components, like turbines, condensers, etc.,<br />

that have been optimised to match these parameters over recent<br />

decades. These standard components both reduce operational<br />

risks and cut capital costs.<br />

Solar thermal power generation with a solar field size of<br />

approximately 627,840 m² translates to a total net capacity of at<br />

least 100 MW at reference site conditions when coupled with<br />

booster firing to increase the live steam temperature to 540 °C.<br />

The project includes all infrastructure connections – gas, water,<br />

electricity at 11 kV and 220 kV, telecommunications, and access<br />

road – needed for Shams One. Although a site close to the sea<br />

would have had some advantages, the landlocked location was<br />

purposely chosen to demonstrate the capability of such a plant<br />

to operate independently of cooling water sources. This<br />

requirement was inspired by the fact that – due to the size of<br />

solar thermal plants – the number of possible sites close to<br />

cooling water sources is limited. Therefore, with an increasing<br />

number of such plants the sites will have to be located inland.<br />

The additional technological requirements for future plants of<br />

this type have already been anticipated in the Shams One<br />

project.<br />

Under a power purchase agreement, the output of Shams<br />

One is fully committed to Abu Dhabi Water Electricity Company<br />

(ADWEC). The engineering, procurement, construction, commissioning,<br />

and start-up works have been awarded to the EPC contractor<br />

consortium UTE Abener Teyma Emirates I, Spain, and will<br />

be completed by 18 June 2012.<br />

The Shams One project is set up as a BOOT (Build Own Operate<br />

Transfer) structure. This means the plant is built, owned and<br />

operated by Shams Power Company for a period of 25 years, at<br />

the end of which it will be transferred to the Abu Dhabi government.<br />

Shams Power Company has subcontracted operation and<br />

maintenance of the plant to an O & M company that is owned to<br />

equal shares by Total and Abengoa Solar.<br />

Shams One is the first concentrating solar power plant to be<br />

registered under the United Nations’ Clean Development Mechanism<br />

and is eligible for carbon credits, as it will displace around<br />

175,000 t of CO 2 per year. It likewise contributes towards Abu<br />

Dhabi’s target of achieving 7 % renewable energy power generation<br />

capacity by 2020.<br />

Overall process flow schematic


Solar investigation tower in Jülich, Germany<br />

AlSol – Feasibility for a Solar Thermal Tower<br />

Power and Gas Turbine Plant in Algeria<br />

Kraftanlagen München GmbH<br />

Gerrit Koll, MBA | Sales and Business Development Manager<br />

<strong>Energy</strong> & Environment Technology<br />

On 24 August 2009, the national administration of scientific research of Algeria, Direction<br />

Générale de la Recherche Scientifique et du Developpement Technologique (DG-RSDT),<br />

and the Solar-Institute Jülich (SIJ) signed a cooperation treaty to realise a further developed solar<br />

tower power plant on basis of the open volumetric air receiver technology in Algeria.<br />

Based hereon as a first step, a feasibility analysis and a basic engineering for the construction,<br />

commissioning and operation of a solar tower power plant were carried out by<br />

Kraftanlagen München under a contract of SIJ. Moreover, SIJ was also in charge of proposing<br />

conceptual ideas for an adjacent technology demonstration and research centre,<br />

the so-called Technopol, as a basis for future scientific cooperation and exchange between<br />

Algerian and German research communities.<br />

Objectives<br />

Site evaluation and conceptual analysis<br />

When the project AlSol started, the SIJ, DG-RSDT, the Algerian partner<br />

“Centre de Développement des Energies Renouvelables CDER”<br />

and the German partners Kraftanlagen München GmbH (KAM),<br />

Deutsches Zentrum für Luft- und Raumfahrt e. V. and IA Tech<br />

GmbH have conjointly worked out the project prerequisites:<br />

– Power plant design providing a broad spectrum of operation<br />

cases for future R&D-studies<br />

– Proximity to research institutes, universities and airports in<br />

the north of Algeria in order to strengthen the Algerian<br />

solar energy research network on an international level<br />

– Innovative plant concept with gas turbine hybridization<br />

and heat storage for operation on demand and high plant<br />

availability<br />

– Modular plant design providing a scale-up ability to commercial<br />

plants<br />

Out of three target regions in the north of Algeria eight possible<br />

sites have been identified and analysed in a two stage<br />

approach. The selected site, fulfilling all project requirements<br />

for a feasible erection and operation of the solar tower, is situated<br />

in Bourkika (Wilaya of Tipaza), in the north of Algeria, well<br />

connected to the research institutes of Blida University and<br />

CDER in Algiers. The expected annual DNI is 1,900 kWh/(m² a).<br />

With regard to the boundary conditions of the potential<br />

sites a main focus was set on developing an advanced plant<br />

concept. Due to the highly synergetic integration of a gas turbine<br />

into the air cycle of the open air receiver technology, e. g.<br />

similar working fluids and temperature levels, different GThybridization<br />

concepts providing timely parallel or serial operation<br />

of the thermal heat supplying components (solar receiver<br />

and gas turbine) were developed and benchmarked against a<br />

Renewable <strong>Energy</strong> | AlSol<br />

34 | 35


solar-only operation. Yearly-based simulations of the investigated<br />

hybrid plant concepts showed solar shares from 5 % up<br />

to 48 %. For these plant concepts, based on annual output calculations,<br />

a comparative evaluation has been presented.<br />

Plant design<br />

The hybrid parallel operation turned out to be most conforming<br />

with the underlying project goals. The key data of the developed<br />

plant design are as follows:<br />

– Operational concept: GT-hybrid parallel<br />

– total reflector area: 25,000 m²<br />

– Heat storage capacity 20 MWh<br />

– Gas turbine/<br />

steam turbine design power: 4,6 MW/2,6 MW<br />

– Cooling concept dry air cooling<br />

The integration of the gas turbine to the solar tower is achieved<br />

by discharging the GT exhaust gas flow into the air cycle of the<br />

solar plant (see figure 2). This “combined cycle”-like configuration<br />

allows a synergetic use of the HRSG and water steam cycle<br />

in solar and fossil operation and assures highly efficient solarto-<br />

and gas-to-electricity conversions. According to the major<br />

conclusion of the conceptual analysis the hybrid parallel concept<br />

for the solar-power plant fulfils the project objectives for<br />

operation and research providing additionally the lowest levelised<br />

cost of electricity LCOE. It has been decided to prosecute<br />

this concept with a minimum plant size dimensioning (nominal<br />

solar load + 50 % part load of gas turbine). In order to preserve<br />

the high thermodynamic efficiencies of the volumetric<br />

air receiver technology, a suitable gas turbine in size and<br />

exhaust gas properties, i. e. exhaust temperature level also in<br />

part load operation, had to be identified and selected.<br />

As a result of the chosen layout the plant can be operated in<br />

pure solar, hybrid parallel or combined cycle-only mode as well<br />

as in many intermediate load cases providing possible solar<br />

shares from 100 to 0 %. A vast flexibility and weather independence<br />

of plant operation can be concluded. Moreover, a<br />

demand oriented plant output becomes possible. This plant<br />

concept enables a great field for future R & D assessments and<br />

evaluations with respect to different load, supply, solar share,<br />

carbon footprint, economic and business cases.<br />

Herein the following prerequisites are mandatory for an adequate<br />

gas turbine for hybrid parallel concept:<br />

– Gas turbine size in accordance to solar part of the power<br />

plant: to provide a constant utilization of the jointly used<br />

components of the power plant<br />

– Exhaust gas temperature in the range of solar hot air temperatures<br />

(over 500 °C): to achieve high thermodynamic<br />

efficiencies for gas turbine exhaust heat recovery and to<br />

maintain high temperature levels in case of parallel operation<br />

– Appropriate part load behavior: constant exhaust temperatures<br />

levels, decreasing exhaust mass flows and reasonable<br />

part load limits (down to 50 % load): to enable an adaption<br />

of gas turbine load to balance fluctuations during solar<br />

operation, to improve the utilization level of the jointly<br />

used components of the power plant and to provide a high<br />

flexibility level of the entire plant<br />

– State-of-the-art technology (efficiency, emissions, etc.)<br />

A comparison of the available gas turbines in the concerned<br />

nominal power range showed that only few turbines are<br />

entirely in accordance with these criteria and thus, suitable for<br />

a parallel hybridization of the solar tower with a 25,000 m²<br />

heliostat field. Nevertheless, further numerical simulations<br />

and analysis of the possible integration of gas turbines into the<br />

solar power plant demonstrated that small gas turbines can be<br />

used for a serial or 100 % parallel concept with a continuous,<br />

full load operation of the gas turbine. It resulted that GT design<br />

D/E can be integrated adequately to a solar power plant with<br />

18,000 or 25,000 m² sized heliostat field.<br />

Plant layout for hybridized solar power tower


Project status and outlook<br />

As the identified site and the developed plant design for the<br />

solar tower fulfilled the project objectives, the partners<br />

declared their intent to realize it and provide the budgetary<br />

framework. As further major step in the permission planning<br />

of the project is scheduled for 2012 and plant commissioning<br />

for 2014.<br />

References<br />

1 MEM (2011). Renewable <strong>Energy</strong> and <strong>Energy</strong> Efficiency Program, March<br />

2011, Algerian Ministry of <strong>Energy</strong> and Mines, Algeria<br />

2 G. Koll et al. (2009). The Solar Tower Jülich – A Research and<br />

Demonstration Plant for Central Receiver Systems. Proceedings of 15 th<br />

SolarPACES Conference, September 2009, Berlin, Germany<br />

3 P. Schwarzbözl et al. (2010). The Solar Tower Jülich – First operational<br />

Experiences and test Result. Proceedings of 16 th SolarPACES Conference,<br />

September 2010, Perpignan, France<br />

4 S. Pomp et al. (2010). Advanced Concept for a solar thermal power plant<br />

with open volumetric air receiver. Proceedings of 16 th SolarPACES<br />

Conference, September 2010, Perpignan, France<br />

5 Alexopoulos, S. et al. (2009): Simulation results for a hybridization<br />

concept of a small solar tower power plant. Proceedings of 15 th<br />

SolarPACES Conference, September 2009, Berlin, Germany<br />

6 Abener Energía S. A (2011): Project information on Solar thermal ISCC<br />

power plant Hassi ’R Mel (Algeria), www.abener.es<br />

Site for the plant in Tipasa<br />

Hybrid open volumetric air system with gas turbine<br />

Renewable <strong>Energy</strong> | AlSol<br />

36 | 37


First Solar, 30 MW, Cimarron (New Mexico, USA)<br />

The Value of Renewable Energies<br />

in the MENA Region<br />

First Solar GmbH<br />

Karim Asali, MBA | Technical Development Manager<br />

Renewable, high-tech energy production<br />

starts contributing to energy independence in MENA<br />

In Western Europe and the U.S.A. power generation using<br />

renewable energy systems has achieved an increasingly strong<br />

position within the energy mix in recent years. In particular<br />

wind energy and photovoltaic (PV) have found a pivotal role in<br />

Germany, Denmark, Spain, Italy, Japan, California, and other<br />

countries through national incentive schemes such as feed-in<br />

laws and tax breaks. A dynamic industry that optimises its production<br />

processes continuously, and a massive increase in production<br />

and power generation capacity has been the result.<br />

This enabled the industry to produce products and build power<br />

generation systems at costs steadily closer to or even lower<br />

than conventional power production from heavy-fuel oil, gas,<br />

and alike.<br />

<strong>Energy</strong> markets are shifting towards renewable energies in<br />

three phases: today, we are experiencing the end of the first<br />

phase, in which public subsidies are driving the market while<br />

helping the industry to reach market maturity. The final, third<br />

phase, is characterised by a sustainable energy economy – the<br />

ultimate goal of this transition towards a clean, green energy<br />

production. Sustainable, in this context, also means the<br />

achievement of power generation costs which are equal to or<br />

lower than fossil-generated electricity on a comparable basis.<br />

We are now in a transition phase – the second phase – with its<br />

special challenges. A feature of this phase is the opening and<br />

creation of new markets with lower requirements for subsidies<br />

and the willingness to question existing energy and economic<br />

structures. This allows a gradual adaptation of new and renewable<br />

resources. However, economies investing in renewable<br />

energy will also have to revise their energy laws and power grid<br />

structures, decentralise power generation and accelerate electricity<br />

market liberalisation processes.


The MENA region<br />

Today, the MENA region is experiencing a profound social, economic<br />

and political transformation.<br />

This transformation includes its energy markets and infrastructures.<br />

Almost without exception, MENA countries are seriously<br />

considering renewable energies as a new option for their<br />

future energy mix. The drivers may be different, but the goals<br />

and solutions are similar.<br />

Net energy exporters such as Saudi Arabia and other GCC<br />

states, for example, see renewables as a means to preserve their<br />

valuable fossil resources and reduce their opportunity cost.<br />

Saudi Arabia, with an increase of 6 to 7 % in domestic consumption,<br />

burns one third of its oil production in order to generate<br />

electricity and desalinate water to meet this steadily growing<br />

domestic demand. Each barrel of oil or cubic meter of gas saved<br />

and replaced by renewables is one more sold to world markets.<br />

An increase of world market prices will boost this positive economic<br />

effect even more. Additionally, the region understands<br />

that solar energy could be an opportunity to build a future<br />

industry, create new jobs and, after all, strengthen its energy<br />

security.<br />

Net importers like Jordan, Morocco, and Tunisia are increasingly<br />

suffering from the rising share of their energy expenditure<br />

related to their gross domestic product. This imposes a high burden<br />

to a region that is already threatened by social unrest.<br />

<strong>Energy</strong> security and the development of an indigenous energy<br />

industry becomes a key driver. For example, Jordan’s electricity<br />

production is almost entirely dependent on Egypt, receiving its<br />

complete gas needs via a pipeline. Supply has already been disrupted<br />

several times since the beginning of this year through<br />

terrorist attacks, forcing the power plant operators to switch<br />

operation from gas to expensive and polluting heavy-fuel oil.<br />

Such ruptures or failures of the Egypt-Jordan pipeline can cost<br />

the state an additional JD 3 million (eq. US $ 4 million) per day.<br />

Critics have sometimes tried to write off renewable energy as<br />

an expensive means to produce green power. The fact is that<br />

technological advancements, economies of scale and market<br />

pressure over the last months and years have led to significantly<br />

reduced costs and prices, both in manufacturing solar modules<br />

and building solar power plants. In some regions and applications,<br />

the industry is now achieving a levelised cost of electricity<br />

close or even below conventional generation grid parity. The<br />

scale and size of projects currently targeted will support this<br />

trend. The construction of a First Solar 550 MW photovoltaic (PV)<br />

project, Desert Sunlight, in southern California, would dwarf current<br />

operating PV plants, the largest of which are in the 70 MW<br />

to 80 MW range, and produce electricity that is already competitive<br />

with peak electricity from natural gas in California, especially<br />

if natural gas prices continue to rise.<br />

Utility-scale, PV-generated electricity in MENA countries is<br />

already moving towards a cost range, depending on location,<br />

between 10 and 15 Euros/kWh, fixed and guaranteed for up to<br />

25 years. Adding the opportunity costs to this cost level, energy<br />

produced by wind and solar can be considered economically<br />

viable already today. However, a dependable, long-term energy<br />

policy framework is essential to allow implementation and<br />

attract the industry even further; giving power produced by<br />

renewables priority to feed the grid and preferential access, the<br />

liberalisation of power markets and simpler permitting procedures<br />

are just some examples of what a sustainable energy<br />

framework needs in order to drive this development.<br />

However, looking at the cost and cost competitiveness is just one<br />

issue concerning the discussion about the sustainable energy<br />

markets. A deeper analysis reveals the true value and exciting<br />

advantages of power produced by renewables, including:<br />

“Water-free” technologies:<br />

The majority of conventional power is generated using the<br />

thermo-dynamic cycle based on Carnot, where thermal energy<br />

is converted into electricity. This applies to all power plants<br />

while burning oil, gas, or coal. Nuclear power plants but also<br />

solar parabolic trough power plants (CSP) are based on the same<br />

conversion mechanism. This cycle requires a cooling process,<br />

which traditionally and most effectively is done by using water.<br />

Typically 1.6 l/kWh (as power plants), 2.3 l/kWh (nuclear), and 4<br />

l/kWh (CSP) are consumed irrevocably to cool down the system.<br />

For example, a 50 MW concentrated solar power (CSP) plant<br />

requires the same amount of water as the annual needs of more<br />

than 600,000 Moroccans. These quantities obviously lack<br />

other consumers then. PV and wind, however, are technologies<br />

that do not require water during their usual operation. The<br />

value of using such technologies in a region with constrained<br />

water resources cannot be overestimated.<br />

Power production in proximity of consumers:<br />

Conventional power plants are usually built as central units of<br />

a size of 500 to 1000 MW to cover large areas of demand. Thus,<br />

they usually require long transmission lines, resulting in losses<br />

and inefficiencies. PV and on-shore wind can be built in smaller<br />

units thanks to their modular characteristics, and thus, be<br />

closer to the consumer and operated almost with no or much<br />

smaller transmission losses.<br />

Renewable <strong>Energy</strong> | The Value of Renewable Energies<br />

38 | 39


Timely production:<br />

A solar photovoltaic system delivers power with good correlation<br />

between supply and demand. This applies especially to<br />

financially strong and hot climate MENA countries, where peaking<br />

air-conditioning consumption and solar electricity production,<br />

for example, occur during the same hours of the day.<br />

Hedging and security costs:<br />

Investments in PV systems are nearly completely capitalrelated<br />

with almost no operating costs. This gives investors,<br />

owners and off-takers a unique, accurate predictability of cash<br />

flows with low-risk investment over the 25-year-plus lifetime of<br />

the plant.<br />

Good predictability of power:<br />

With a reliable and stable solar radiation source over 300 days/<br />

year on average in MENA, a solar system can produce predictable<br />

and reliable power throughout the entire year.<br />

Simple technology:<br />

Wind and especially PV consist of only few components. Their<br />

modular design offers a range of advantages compared to complex<br />

conventional power plants. This includes the ability to<br />

expand the systems at a later stage by adding units without<br />

major disruption. Additionally, PV can be installed with no<br />

moving parts, resulting in lower maintenance expenses.<br />

Infrastructure requirements:<br />

In contrast to conventional power plants wind or PV systems<br />

require only limited adjustments to existing infrastructure.<br />

Neither gas nor water supply lines are required. The modularity<br />

allows the system size to adapt to existing network capacity<br />

such as medium or high voltage transmission lines.<br />

Fast realisation of development and construction:<br />

A minimum of four to five years is needed to develop and construct<br />

a fossil power plant before it delivers a single kilowatt<br />

hour of electricity to the grid. A PV system, on the other hand,<br />

can be developed and built in half the time and begin producing<br />

power in stages. This time factor is particularly of value for<br />

regions with rapidly growing demand as in the MENA region<br />

and significantly reduces financing costs.<br />

Summarised, all these advantages can, to a great extent, be<br />

translated into cash and contribute to evaluating the true levelised<br />

cost of electricity of renewable energy. Commercial and<br />

utility-scale PV systems show a solid track record in Europe, Canada,<br />

and the desert of South West U.S. Almost 30 GW have been<br />

installed in the past few years just in Europe. The U.S. is investing<br />

heavily in renewables and is forecast to grow to between 4.5 and<br />

5.5 GW over the next five years, or around ten times the size of<br />

the market in 2009. By investing in renewable energies, the<br />

MENA region can cover its steadily growing power needs with<br />

sustainable renewable electricity while securing the potential<br />

and resources to transform its economies.<br />

First Solar, Gehrlicher Solar, 5 MW, Bullas (Spain)<br />

First Solar, Sempra <strong>Energy</strong>, 48 MW, Boulder City (Nevada, USA)


Masdar’s 100 MW<br />

Noor 1 Photovoltaic Project<br />

Lahmeyer International<br />

Camilo Varas | Project Manager<br />

Current conditions of the site: relatively flat with good soil conditions,<br />

perfect for the development of a PV plant.<br />

The Abu Dhabi Future <strong>Energy</strong> Company (Masdar), a UAE based company, is planning the<br />

construction of a 100 MW photovoltaic power plant in the United Arab Emirates called Noor 1.<br />

The Noor 1 project, foreseen to start operations at the end of 2013, will be one of the l<br />

argest PV plants worldwide, generating over 160 GWh of electricity per year. Furthermore,<br />

the Noor 1 plant will be the first of a set of three 100 MW photovoltaic power plants<br />

intended to be built in the same area under the name Al Ain Solar Park.<br />

Noor 1 – which translates from Arabic into “Light 1” – will form<br />

part of Masdar’s growing renewable energy project portfolio in<br />

the UAE, which includes, among other solar and wind projects,<br />

a 100 MW CSP project called Shams 1, currently under construction<br />

by a consortium between Abengoa (Spain) and Total<br />

(France).<br />

The construction of the Noor 1 project will not only represent<br />

a major step in UAE’s renewable energy targets, but also<br />

the cornerstone for the development of large scale PV projects<br />

in the MENA region.<br />

It is no secret that the constant cost reduction on PV modules<br />

seen in recent years has rendered the PV industry more<br />

attractive and competitive than other renewable energy<br />

options (e. g. CSP). This fact, together with a combination of a<br />

vast energy resource (solar irradiation) and available land, has<br />

made large scale PV projects a perfect match for renewable<br />

energy development in the MENA region.<br />

Thanks to its extensive track record in photovoltaics, Lahmeyer<br />

International was entrusted with the role of technical advisor<br />

to Masdar. The tasks include the preparation of the project<br />

design considering state-of-the-art technologies and practices,<br />

technical assistance during the tendering phase (tender document<br />

preparation and bid evaluation), and contract negotiations.<br />

For this challenging project, Lahmeyer has formed a team of<br />

multidisciplinary and highly skilled experts i. e. power, me chani<br />

cal, civil, renewable engineers, among others, who are prepared<br />

to cope with the particular needs of the project. Furthermore,<br />

Lahmeyer’s local office in Abu Dhabi plays a key role<br />

within the team, confirming the worldwide presence of LI and<br />

the ability to undertake projects globally with key local knowledge.<br />

Renewable <strong>Energy</strong> | Photovoltaic project<br />

40 | 41


The project<br />

Current status<br />

The Noor 1 plant will be located in the United Arab Emirates<br />

near Al Ain, in the Emirate of Abu Dhabi. The site selected covers<br />

an area of approximately 350 ha, consisting of relatively flat<br />

land with optimal soil characteristics. Furthermore, the site is<br />

located in an uninhabited area where limited vegetation and<br />

wildlife will be disturbed.<br />

By using measurements on site and with assistance of satellite<br />

derived data, it has been estimated that the plant will<br />

receive an average solar irradiation of over 2,200 kWh/m² per<br />

year (global horizontal), making it an excellent site for the<br />

development of a PV project.<br />

The plant design is conceived as a ground mounted solar PV<br />

power plant, rated for approximately 100 MWp installed PV<br />

power, which will make the Noor 1 plant one of the largest PV<br />

plants in the world and the largest in the MENA region.<br />

Due to the plant size and desert like conditions found at the<br />

site (e. g. high ambient temperatures, fine sands) new and innovative<br />

solutions and plant components have been investigated,<br />

while still taking advantage of the project’s economy of scale.<br />

The PV modules will be mounted on fixed structures and will<br />

be grouped in multi-megawatt blocks. Tracking structures have<br />

been discarded as an option for the project due to the lack of an<br />

extensive track record of these structures in a similar working<br />

environment (e. g. effect of fine sand on tracking mechanisms).<br />

A preliminary layout can be seen in the below picture.<br />

The interaction between the plant and the electricity grid<br />

represents an additional technical challenge for which state-ofthe-art<br />

control and weather forecasting equipment are foreseen<br />

for the plant. The electricity generated by the Noor 1 plant<br />

will be exported directly to the high voltage transmission grid<br />

at 220 kV via an existing substation located at Sanaiya, approximately<br />

10 km west of the site. An important factor to the<br />

project is the construction and installation of a 220/33 kV substation<br />

at the project site, as well as the underground cable<br />

linking the 220/33 kV substation and the Sanaiya substation.<br />

The energy produced by the Noor 1 project will be sold<br />

through a long term PPA with the local utility.<br />

Aerial view of the site including a preliminary design<br />

for the 100 MW plant. In this example, the total occupied area<br />

of the plant extends 3 km² (2.5 × 1.2 km).<br />

Lahmeyer International together with Masdar’s project team<br />

finalised the conceptual design of the project earlier this year.<br />

Simultaneously, a prequalification process was carried out<br />

identifying the potential bidders for the project.<br />

Once the tendering documents were prepared, Masdar<br />

launched the request for proposals for the construction and<br />

operation of the Noor 1 plant in May. Due to the high quality of<br />

the received Statements of Qualification, a relatively large<br />

number of bidders were prequalified and invited to present a<br />

proposal for the future plant.<br />

Within the short listed bidders well known PV as well as local<br />

players are competing for the project.<br />

The project requirements set high standards for the detailed<br />

design, equipment selection as well as for the quality of the<br />

construction, in order to ensure successful operation and performance<br />

over the project lifetime. Moreover, the project is<br />

being developed through the project finance modality, expecting<br />

commercial banks to provide debt financing, making the<br />

bankability of the components and construction works a must.<br />

Furthermore, the successful bidder will be the one who, satisfying<br />

the aforementioned technical requirements, submits a<br />

proposal with the lowest LCOE (levelised cost of electricity).<br />

Additionally, the successful bidder will be required to operate<br />

and maintain the plant during the first five years of operation,<br />

with the possibility of an extension for a longer period.<br />

Upcoming project timeline<br />

The evaluation of the bids is foreseen to take place during the<br />

last quarter of 2011 along with the contract negotiations, where<br />

Lahmeyer will be significantly involved. Following the planned<br />

course, the contract award is expected during the first quarter of<br />

2012. Construction of the power plant as well as the new substation<br />

and the interconnection line are set to start mid-2012 and is<br />

expected to last no more than 18 months. Although partial commissioning<br />

of the solar field is likely to happen, fully commercial<br />

operation is expected to take place at the end of 2013.<br />

Conclusion and perspective<br />

At 100 MWp installed capacity, the Noor 1 plant will be one of<br />

the largest PV plants around the world and the largest in the<br />

MENA region. Thanks to its innovative technical and commercial<br />

conception, it is expected to serve as an example and<br />

model for the development and construction of similar large<br />

scale PV plants all over the MENA region.<br />

Lahmeyer is glad to join and assist Masdar in the successful<br />

development of this pioneering and exemplary project in the<br />

MENA region.


Sustainable <strong>Energy</strong><br />

for Remote Radio Towers in Algeria<br />

“Power&Life Container” installed in Neuenrade, Germany.<br />

Sa<strong>Energy</strong> Systems GmbH<br />

Klaus Naderer | Managing Director<br />

Continuing fluctuations in the Algerian national electric power system cause considerable<br />

off-times in the mobile telecommunication system. As a result, one of the local mobile network<br />

operators (MNO) is looking to install emergency power systems for existing radio towers<br />

and to operate new radio towers off-grid by using the “Power&Life Container” (PLC) –<br />

a mobile power plant developed by Sa<strong>Energy</strong> Systems. Sa<strong>Energy</strong> Systems is currently working<br />

with a partner on the bidding phase of the project.<br />

Installation and maintenance of mobile telecommunication<br />

networks in Algeria is a challenging task. As one of the largest<br />

territorial states in the world, and the largest one on the African<br />

continent, Algeria demands a great deal from its nationwide<br />

telecommunication operators. Roughly 87 % of the country<br />

is considered Saharan territory, with almost 80 % being<br />

devoid of any vegetation. This makes expanding the national<br />

power grid to remote installations like radio towers difficult, as<br />

well as expensive. The very range of power supply networks<br />

necessary for covering such a large country with such demanding<br />

environmental conditions makes technical difficulties<br />

within the power supply inevitable. Fluctuations in the<br />

national grid, leading to off-times in telecommunication networks,<br />

are the consequence. Therefore, technical installations<br />

that depend on permanent and steady power have to be provided<br />

with a power back-up. So far diesel-powered generator<br />

sets and battery systems have filled this niche.<br />

While Algeria is one of the largest oil exporting countries in<br />

the world, the government declared in February 2011 that in<br />

order to conserve its fossil fuel reserves, and free itself from a<br />

unilateral dependency, the country is planning to generate<br />

40 % of its energy from renewable energy sources by 2030.<br />

Renewable <strong>Energy</strong> | Remote Radio Towers<br />

42 | 43


Stand-alone Power<br />

Today, the energy potential of the solar irradiation in Algeria<br />

alone would exceed the world-wide demand. This makes the<br />

use of sun and wind as infinite and sustainable energy<br />

resources the perfect choice for Algeria.<br />

The above mentioned reasons make it is easy to comprehend<br />

why it is favourable for Algerian mobile telecommunication<br />

providers to switch emergency power supply of remote<br />

radio towers progressively from fossil fuelled generation to<br />

power that is generated from renewable energy. In this context,<br />

Sa<strong>Energy</strong> Systems is planning to provide radio towers with its<br />

“Power&Life Container” as a versatile and mobile power generator<br />

based on renewable energy in a co-operation with the supplier<br />

of the Algerian mobile network provider.<br />

Back-up Power<br />

The first part of the co-operation includes provision of existing<br />

radio towers connected to the national electricity grid with a<br />

back-up power solution, a move away from diesel-powered<br />

generator sets. Here the “Power&Life Container” offers the possibility<br />

to generate sustainable energy from infinite renewable<br />

energy sources. The PLC consists of a standard 20-foot shipping<br />

container, a combination of different modules, including a<br />

solar power plant, a wind turbine, an energy storage system,<br />

and a power stand-by unit. The interaction of the different<br />

components and the operational processes are monitored and<br />

managed by an electronic control unit. The PLC can be outfitted<br />

to produce between 5 kW and 35 kW, according to requirements.<br />

Housing the components within a standard 20-foot<br />

intermodal container is highly beneficial for mobility, erecting/assembly,<br />

and operation. When the system is set up, the<br />

polycrystalline solar modules are mounted on a specially<br />

designed rack system, are placed conveniently near the container,<br />

and can thus be aligned optimally to the sun. The mast<br />

for the wind turbine is attached to the container itself, so that<br />

no extra foundation or anchoring is necessary. Wind turbine<br />

and solar power plant can be assembled with standard tools<br />

within a relatively short period of time (approx. 8 – 10 hours).<br />

The control unit, the energy storage system, and the power<br />

stand-by unit remain inside the container. The PLC can easily<br />

be dismantled and moved to a different location, if necessary.<br />

In comparison with regular emergency power systems like diesel-powered<br />

generator sets, the PLC generates energy 24 hours<br />

with very low operational costs. Excess energy can be used for<br />

a variety of different applications or fed into the grid until<br />

needed as emergency supply.<br />

For the second phase of this project, it is planned to supply<br />

newly built radio towers with energy provided by the<br />

“Power&Life Container” right from the start instead of connecting<br />

them to the national grid first. As a result it won’t be necessary<br />

to expand the communication network exclusively along<br />

existing power distribution lines and have areas without gridsupply<br />

not included in the mobile communications network.<br />

Construction and maintenance of long range energy transport<br />

systems usually account for a significant portion of the<br />

industry related investments and add significantly to the costs<br />

per kW. Simply put, the generation of power on-site and offgrid<br />

from renewable energy sources would be a lot more costeffective<br />

in the long run.<br />

Delinking the radio station locations from the grid infrastructure<br />

enables the MNO to locate the stations where they provide<br />

the best mobile network cell coverage. Connection to the power<br />

grid would not be a limiting factor anymore.<br />

Furthermore, the PLC control system contains a communication<br />

module which enables remote monitoring, controlling,<br />

and programming of the system, allowing the surveillance of<br />

the stand-alone system, and making it less dependent on constant<br />

inspections at isolated locations. Transmission of the signal<br />

can be easily achieved via the radio tower installation itself.<br />

<strong>Energy</strong> flow chart<br />

illustrating electricity generation and<br />

distribution among consumers.


Excess Power<br />

Conclusion<br />

Another significant step is planned for a third phase in this<br />

project. Any excess energy generated by the “Power&Life Container”<br />

at the radio towers may also inure to the benefit of<br />

nearby settlements, maybe even resulting in a positive symbiosis<br />

of the network operator and the local community, e. g. as a<br />

Public Private Partnership (PPP). While one party profits from<br />

inexpensive electricity, the other party may profit from acceptance<br />

and care for the technical installation. Rural areas can be<br />

provided with basic electricity, enabling the supply of electric<br />

lighting and cooling and, thus, in turn enabling education,<br />

communication, health care, and electricity for the production<br />

of drinking water and industrial processes. This way, the provision<br />

of such services can help to overcome poverty, illiteracy,<br />

water and food shortages in developing or rural areas and help<br />

establish regional economic cycles.<br />

Usually radio towers can be powered with an output of<br />

about 10 kW. In case a PLC with a nominal output of 15, 20, or<br />

up to 35 kW is installed, the excess power could be given away<br />

and power potentially a water treatment unit or a water desalination<br />

unit. For these applications, the PLC can be equipped<br />

with modular water treatment or desalination units, customised<br />

depending on the environmental requirements or the<br />

degree of pollution of the available water. The processed drinking<br />

water and/or excess generated electricity could, for example,<br />

supply a nearby village. Considering that Algeria is one of<br />

the most arid countries in the Mediterranean region, access to<br />

safe drinking water and sanitation would be highly beneficial.<br />

In return, the local community could provide small-scale service<br />

for the PLC and its components. This may include cleaning<br />

the solar panels from sand, refilling the current generators fuel<br />

tank, or even protecting the PLC and the radio tower against<br />

theft or vandalism. This trade-off would reduce the network<br />

operators own costs for maintenance or larger safety installations<br />

for their remote radio towers and would provide access<br />

to electricity, or clean water, for the local population.<br />

The planned provision of renewable energy as either back-up<br />

power, stand-alone power, or stand-alone with a PPP component<br />

is a high visibility project. The realisation will lead to a<br />

more reliable mobile network in Algeria, creating an improved<br />

telecommunication system for both the users and the industry,<br />

and potentially generating excess power which can be used by<br />

local communities, thus being benefiting all parties. All of this<br />

is based on renewable energy that abounds in the region. Stable<br />

telecommunication through the use of sustainable and<br />

environmentally compatible energy sources could be trendsetting<br />

for Algeria, and the rest of the world.<br />

Stand-alone power for remote radio towers.<br />

Renewable <strong>Energy</strong> | Remote Radio Towers<br />

44 | 45


Visualisation of pilot wind farm<br />

Wind <strong>Energy</strong> in Libya<br />

CUBE Engineering GmbH<br />

Stefan Chun | General Manager<br />

As one of the world‘s largest crude oil exporters, Libya soon realised the potential of the use of<br />

renewable energy (RE) technologies in its own country (including solar and wind, among others).<br />

Already at the end of the 1970s, proprietary studies, demonstration projects and small<br />

pilot projects were gaining ground in the huge desert country – about 85 % of the land surface is<br />

covered in sand desert or steppe – and fourth largest country in Africa. A larger, national<br />

and commercial use of the technology, however, was confined to the large centres in the west<br />

(Tripoli) and east (Benghazi). At the end of the 1990s, the first wind atlas for the coastal<br />

region was created at Al-Fateh University in Tripolis.<br />

After years of isolation the strong growth of Libya’s economy at<br />

the beginning of this century resulted in a huge demand for<br />

energy. The forecasts called for approximately 10 % growth per<br />

year for the circa 6.5 million inhabitants of the relatively<br />

sparsely populated state. The national energy provider GECOL<br />

(General Electricity Company of Libya) is aware of the finite<br />

nature of oil and gas resources. Over several years, GECOL developed<br />

a strategy for covering the energy demand of its customers<br />

with new and existing technologies. From this, a master plan<br />

was created, which calls for a 10 % share of renewable energies<br />

in generation of power (by 2012 – 2015). For wind energy, this<br />

share represents about 500 MW of installed wind park capacity.


The task<br />

In 2000, the energy providers in Libya searched for experts in<br />

the appraisal of domestic wind energy potential, as well as for<br />

the planning and realisation of the first commercial wind parks.<br />

The main focus aside from the identification of potential<br />

project locations and analysis of wind resources was the knowledge<br />

transfer regarding technology, processes and implementation<br />

to native engineers and scientists.<br />

In February 2001, the contract was given to a German-Danish<br />

consortium under the leadership of CUBE Engineering GmbH,<br />

comprised of the University of Kassel, the Fraunhofer-Institute<br />

for Wind <strong>Energy</strong> and <strong>Energy</strong> System Technology (IWES), and EMD<br />

International A/S, with the goal of identifying and implementing<br />

a pilot wind park project with up to 25 MW (originally<br />

planned) installed capacity at a suitable location in Libya. In<br />

2010, the erection of a 60 MW pilot project near Darnah in the<br />

east of the country was begun.<br />

The pilot project<br />

The project was divided into the following four phases:<br />

1 Identification of basics, project identification, analysis and<br />

feasibility study<br />

2 Definition of specifications, manufacturers and tendering<br />

3 Evaluation of bids, contract negotiations and tender awards<br />

4 Construction preparation, construction and supervision<br />

during the warranty period<br />

During all phases, seminars, workshops, on-the-job-training<br />

and visits to comparable projects and manufacturers in Germany<br />

were offered, in order to integrate into the project and<br />

ensure transfer of knowledge to the Libyan engineers and the<br />

project team.<br />

1<br />

Project Identification – The initial situation was not simple:<br />

where should one begin in a country as vast as Libya? In the<br />

beginning, the regions and zones with the potential to host a<br />

wind park of the desired size were identified. Next, the consultants<br />

and project teams agreed that the development of the<br />

wind park should take place in an area where the end users and<br />

suitable existing infrastructure could also be found: on the<br />

coast, where 90 % of the population of Libya lives. Accordingly,<br />

over 40 different regions and locations along the 1,600 km<br />

long coastline from Tripoli to the Egyptian border were scouted.<br />

Engineers travelled up to 40 km inland from the coast in order<br />

to evaluate the height contours (several hundred meters above<br />

sea level). All existing information about topography, meteorology,<br />

infrastructure (i. e. streets and electrical networks), geology,<br />

technical and personnel resources, as well as local knowledge<br />

was collected and evaluated, so that the technical and<br />

financial feasibility of the project could be judged.<br />

Feasibility Study – Five locations in characteristic regions of<br />

the country (Misrata in the West, Sirt in the centre and Al<br />

Maqrun, Tolmeitha and Darnah in the east) were chosen for<br />

more detailed studies and analysis. Wind measurement campaigns<br />

over a period of more than 12 months were conducted at<br />

each location. The results of the measurements were evaluated<br />

and compared to long-term wind data. On the basis of local<br />

topography and the long-term wind conditions which can be<br />

expected, various wind parks with differing manufacturers and<br />

performance classes were developed and modeled. The infrastructure<br />

with respect to civil construction (including soil studies<br />

for foundation, roads and crane hardstandings) and electrical<br />

connection (including points of connection to the grid,<br />

capacity and network quality) with respect to the technical feasibility<br />

were both considered explicitly in the evaluation. Environmental<br />

aspects were assessed likewise. The various wind park<br />

sizes and concepts were evaluated under several different sets of<br />

basic assumptions and cost estimations and evaluated in combination<br />

with the technical feasibility. The results were successfully<br />

presented to the Libyan project team in a large meeting at<br />

the conclusion of the first phase.<br />

The coastal location DARNAH, between Benghazi and Tubruc<br />

in eastern Libya, delivered excellent values for the realisation as<br />

the first commercial wind park: wind resources on a nearly even<br />

plateau (approximately 220 to 240 m above mean sea level) in<br />

proximity to the coast showed a constant speed of around 8 m/s<br />

as a middle long-term value of the wind speed 50 m above<br />

ground. This results in approximately 3,500 to 4,000 full load<br />

hours for a wind park. The city of Darnah with about 160,000<br />

inhabitants (greater Darnah region) has an industrial port and a<br />

very good infrastructure in regard to soil conditions, roads and<br />

network access. There are no existing conflicts in regard to environmental<br />

aspects. The penetration of sand is rather moderate<br />

compared to inland areas and the temperature does not reach<br />

the peaks found in the desert. Permitting interests were taken<br />

care of by the client.<br />

2<br />

Tendering – The detail work began in the next step. On the one<br />

hand, the land and property for the electrical cables must be<br />

secured. Often, estates belong to the various tribes. And here<br />

the interaction with the planned technology must be introduced<br />

to people. For example, the herders and nomads also<br />

have the opportunity to continue using the land between the<br />

turbines. On the other hand, the wind park was “engineered.”<br />

All collected and measured values and information were pre-<br />

Renewable <strong>Energy</strong> | Wind <strong>Energy</strong><br />

46 | 47


Erection of met mast<br />

pared according to technical specifications. The specific locations<br />

of the future wind turbines (WTG), together with the<br />

dimensions and performance classes, was decided. The planning<br />

of the access roads and of the electrical network layout<br />

were drawn on the basis of topographical maps and provided<br />

to the customer in a digital format. The climatic challenges of<br />

Libya in regard to temperature and sand storms made it necessary<br />

to test the materials and different turbine types to ensure<br />

suitability.<br />

Manufacturer identification – In comparison to the technical<br />

specifications of the project, this aspect developed into a large<br />

and time-consuming task, even a challenge. The activities started<br />

in 2001, with the feasibility study presented in 2004. The original<br />

assumptions and conditions – to develop a 25 MW wind park<br />

project in the new Libyan market – no longer matched the current<br />

physical market conditions. International demand for wind<br />

energy was high and manufacturers were no longer as willing as<br />

before to give priority to a small project in an “exotic” land.<br />

Accordingly, client and manufacturer positions had to be<br />

adjusted: the project size grew to a capacity of 60 MW with the<br />

option for another 60 MW, and a political “roadmap” for the further<br />

development of wind energy in Libya was developed. This<br />

gave manufacturers the opportunity to deliver larger volumes<br />

to a land which was seriously following set wind energy goals. At<br />

the same time, the manufacturers had to commit to delivery,<br />

EPC services, erection and supervision during the warranty<br />

period. This meant that, in addition to the political declaration,<br />

the manufacturers had to work together with suitable partners<br />

in Libya.<br />

At the end of this phase (and an updated tender request for<br />

the new project size) at the end of 2007, all tendering documents<br />

for a turnkey delivery and construction of a 60 MW wind park<br />

were ready. In the meantime, the project team had also changed.<br />

With the founding of the renewable energy authority of Libya<br />

(REAOL), this authority had also taken over the lead of the<br />

project.<br />

3<br />

Tender award – The evaluation of various offers was done with<br />

the help of an objective key previously defined by the project<br />

team. Every interested manufacturer was given the opportunity<br />

to ask questions and to get to know the project team and<br />

location. Because the tendering request was given to the manufacturers<br />

with a high level of detail, it was easy to compare the<br />

offers received. The costs for the wind turbine, other necessary<br />

equipment and the erection comprised about 70 – 80 % of the<br />

total costs. In addition to the technical data, a delivery contract<br />

was also included as part of the tendering request documents.<br />

Contract negotiations – In total, four manufacturers submitted<br />

offers. Among other things, the project team was interested<br />

in the manufacturing capacity of the companies, various<br />

turbine concepts, as well as the quality and reliability of the<br />

turbine technology with specific regard to the Darnah location.<br />

Before the contract was signed, production locations and reference<br />

turbines were visited in the summer of 2008, and many<br />

practical questions concerning the realisation were posed and<br />

answered. Already at this step only a select number of manufacturers<br />

were visited.<br />

The consortium of the Egyptian company ELSEWEDY with the<br />

Spanish turbine delivery company MTorres were the successful<br />

winners of the tender. In total, 36 turbines from the manufacturer<br />

MTorres, type TWT 1.65 with 80 m hub height, 70 m rotor<br />

diametre and 1.65 MW named capacity each will be installed at<br />

the Darnah location. The total capacity of the wind park will be<br />

59.4 MW. The turbine technology is characterised by a separately<br />

excited synchronized generator, the power inverter technology<br />

necessary for a network-friendly connection and without a gearbox,<br />

similar to Enercon turbines. The wind park will be implemented<br />

with an outbuilding for supervision and furnished for<br />

operational personnel on site. ELSEWEDY has already been active<br />

in the area of electrical network planning and realisation in<br />

Libya for several years. Several years ago, the Egyptian group<br />

acquired the majority stake in the Spanish manufacturer<br />

MTorres.


4<br />

Construction Preparation – After signing the delivery contract,<br />

the preparations for the building started. In addition to working<br />

out the time and task schedule, the project management<br />

and milestones were defined. The first implementation activities<br />

consist of surveying of individual turbine locations, roads,<br />

cable routes, soil tests and bores and network connection<br />

including equipment ordering, logistical planning of turbine<br />

components delivery and erection, and the final production of<br />

the turbines. The first foundations were prepared and excavated.<br />

The delivery of the turbine components with half of the<br />

total capacity was prepared, sent to Darnah in the spring and<br />

unloaded in the port.<br />

The Arabian Spring at the beginning of 2011 left its mark in<br />

Libya, as well as in neighboring Egypt and Tunisia. After peaceful<br />

demonstrations at the beginning, a stronger conflict has developed<br />

in the country in the last few months. All action in regard<br />

to the wind park project was stopped immediately. The project<br />

will be resumed as soon as the safety and security in Libya are<br />

guaranteed.<br />

Training of local engineers<br />

The potential<br />

In addition to the first wind park pilot project, the consulting<br />

firm CUBE Engineering was commissioned to create the first<br />

national wind atlas for Libya. The wind atlas covers the entire<br />

country in a horizontal resolution of 2.5 km and is available in<br />

calculations for two heights (50 and 80 m above ground). In<br />

four of the five chosen regions, the atlas is offered in a high resolution<br />

model, presented with a resolution of 200 m. The<br />

results of the model were compared to various other long-term<br />

and historical measurement data. According to the commission<br />

description, the wind potentials are shown on the map<br />

with a precision of co +/– 15%.<br />

The results reveal that Libya possesses large areas with very<br />

good wind conditions (average wind speed per year of 7.5 m/s<br />

and more, which represents more than 3,000 full load hours for<br />

a modern turbine). In individual regions, the potentials are significantly<br />

higher and can be taken advantage of more economically.<br />

Within the frameworks of the Libyan “roadmap” and the<br />

DESERTEC-Initiative, more than 1,000 MW of capacity can be<br />

realised. A new beginning based on the energy production from<br />

renewable energies, and here specifically wind energy, would not<br />

be only desirable, but technically and economically solid and<br />

worthwhile. For support and implementation, the country of<br />

Libya and the client can count on lots of help, experience and<br />

expertise from Germany.<br />

Libya locations phase 1<br />

Wind atlas of Libya<br />

Renewable <strong>Energy</strong> | Wind <strong>Energy</strong><br />

48 | 49


Visualization of Nyala wind farm<br />

Installation of a wind measurement<br />

station in Nyala in 2001<br />

Location of the three wind farm sites<br />

First Larger Scale Wind Park <strong>Projects</strong><br />

in Sudan<br />

Lahmeyer International<br />

Dr. Patric Kleineidam | Head of Department Renewable Energies –<br />

Wind <strong>Energy</strong>, Matthias Drosch | Project Manager Wind <strong>Energy</strong><br />

In recent years, African countries have started to enter the wind energy market.<br />

However, only Morocco, Egypt and South Africa have implemented large scale wind farms to date.<br />

Kenya has commissioned a pilot wind farm in recent years, and Ethiopia and Nigeria<br />

are currently constructing their first wind farms. Countries such as Tanzania, Lesotho and Ghana<br />

are expected to follow.<br />

One reason for this positive growth is the promising wind conditions<br />

between the Red Sea coast and the African Rift valley.<br />

These wind conditions can be found in Sudan as well. Thus, the<br />

Ministry of Electricity and Dams (MED) of the Republic of<br />

Sudan has decided to develop three wind farm projects with a<br />

total capacity of 300 MW. These three projects are comprised of<br />

the 20 MW Nyala wind farm, 100 MW Dongola wind farm and<br />

180 MW Red Sea Coast wind farm. At all three project locations,<br />

good wind conditions (> 7 m/s) can be found, comparable to<br />

the highest occurrences in Sudan (> 8 m/s). At the Red Sea Coast<br />

a high quality wind measurement campaign is currently under<br />

preparation in order to confirm the expected values, which<br />

have been measured by former wind measurement campaigns.<br />

The development of wind energy in Sudan started in 2001 and<br />

2002, when wind measurement campaigns were undertaken in<br />

southern Darfur as well as northern Sudan to determine areas<br />

of high wind speed. Regarding these, the area near the city of<br />

Nyala, capitol of the state of Janub Dafur, and the northern<br />

region near Dongola village at the western side of the Nile River<br />

have been identified as the most feasible locations for building<br />

wind farms. For these sites, feasibility studies and wind measurements<br />

were performed in 2002 and 2003. At that time Lahmeyer<br />

International, Germany (LI), was already involved as<br />

technical advisor.<br />

Implementation plan<br />

for three wind energy projects<br />

In February 2011, LI was appointed by MED as its consultant to<br />

act as the owner’s engineer for all three projects. The services<br />

comprised the review and update of t he former feasibility<br />

studies as well all design, tendering, contracting and supervision<br />

services leading up to commissioning of the wind farms.<br />

Dongola wind farm, with a total capacity of 100 MW, will be<br />

built in two phases, where Phase I comprises 20 MW and Phase II<br />

comprises 80 MW. The first phase of the project will be connected<br />

temporarily to the existing 33 kV electrical grid. At later<br />

stages, the final wind farm capacity will be connected to the 220<br />

kV grid system, which is currently under construction and will<br />

connect the villages of Dongola and Wawa.


Engineering Partner<br />

worldwide<br />

<strong>Energy</strong> is the key to development and design of our future. New technologies<br />

allow the reasonable use of renewable energies. Thus, precious primary energy<br />

resources are preserved.<br />

The countries of the Arab League are continuously in Lahmeyer’s focus since 40<br />

years. Currently we are involved in the largest ongoing infrastructure projects.<br />

As an independent company of consulting engineers, Lahmeyer International<br />

provides planning, engineering, management and consultancy services for<br />

economic and technical projects.<br />

Successful solutions to complex technical tasks are based on decades of<br />

experience in extensive infrastructure projects in Africa, Asia and worldwide.<br />

• Thermal Power Generation<br />

• Renewable <strong>Energy</strong><br />

• Hydropower<br />

• Water Resources<br />

• Power Transmission<br />

and Distribution<br />

Lahmeyer International GmbH<br />

Friedberger Str. 173<br />

61118 Bad Vilbel, Germany<br />

Phone: +49 (0) 6101/55-0<br />

E-mail: info@lahmeyer.de<br />

www.lahmeyer.de<br />

RZ_AZ_LI-<strong>Ghorfa</strong>_210x135mm_4c.indd 1 18.08.11 10:07<br />

The 20 MW Nyala wind farm is planned to be integrated into<br />

the existing isolated 11 kV-Diesel-grid system, which is currently<br />

an island network with a maximum capacity of 30 MVA<br />

from diesel units. As the city will be connected to the national<br />

main grid, a future connection to the 220 kV grid is taken into<br />

account.<br />

The third project is the development of a wind farm site at<br />

the Red Sea coast area with a total capacity around 180 MW. The<br />

area of this project, which is between Port Sudan International<br />

Airport and Sawakin, was preselected by MED. The Red Sea Coast<br />

project differs from the Nyala and Dongola projects: here on site<br />

wind measurements were not done in previous years. The Red<br />

Sea coast project is still in the initial phase of installing the measurement<br />

equipment and collecting wind measurement data for<br />

further evaluation. The feasibility study for this project will<br />

determine the final location of the wind farm area.<br />

Dongola wind farm in tender process<br />

For the Dongola wind farm project, which will be implemented<br />

as a turnkey project, the request for proposals was launched<br />

recently. The deadline for submission of proposals will be in<br />

August 2011. A contractor will be selected for the turnkeyproject<br />

in October 2011 in order to start with the services in the<br />

first quarter of 2012. Completion of the first phase will be in<br />

2012, followed immediately by the start of Phase II.<br />

Conclusion and perspective<br />

The tender process for Nyala project will be launched in 2011,<br />

followed by evaluation and negotiations in the last quarter<br />

2011. Similar to Dongola, it is also foreseen to start with construction<br />

in 2012. However, due to the remote location of the<br />

Nyala site, a longer period for transportation and construction<br />

must be expected when compared to Dongola.<br />

The tendering for the larger project on the Red Sea coast is<br />

foreseen after the completion of 12 months of wind measurements,<br />

which is expected in 2012.<br />

To conclude, the development of these projects will improve<br />

the electricity production in Sudan by moving from a dependence<br />

solely on fossil fuels to a mix with sustainable energy<br />

sources. To reach this goal, Lahmeyer International is providing<br />

its services based on its comprehensive experience in the field of<br />

wind energy gathered over the previous decades in numerous<br />

projects all over the world.<br />

Renewable <strong>Energy</strong> | Wind Park <strong>Projects</strong><br />

50 | 51


Power<br />

Transmission and Distribution<br />

With increasing electricity and power demands in Arab countries, pressure is<br />

not only exercised on the production side but also on the distribution<br />

and transmission. Interregional and international cooperation is imperative in<br />

this regard, as is highlighted by the GCC power grid for instance and future<br />

networks covering North Africa and linking it to Europe. German companies<br />

have been involved in setting or overhauling existing distribution networks and<br />

their experiences will prove valuable for upcoming projects. This also includes<br />

a more thorough access of oil or gas-driven power plants to high voltage grids.<br />

The reference projects that are presented in this chapter show some<br />

of the successful German participations and activities in Oman and Qatar.<br />

Power Transmission and Distribution<br />

52 | 53


Electricity Interconnection <strong>Projects</strong><br />

among Arab Countries<br />

Arab Union of Electricity<br />

Fawzi Kharbat | Engineer, Secretary General<br />

There are many areas of cooperation between the Arab Countries in the electricity sector.<br />

One of the most important areas is the electricity interconnection. The importance<br />

of this interconnection comes from the projects among the Arab Countries on one hand,<br />

and between the Arab countries and Europe on the other hand.<br />

Without doubt, electricity interconnection projects help in<br />

minimizing the investment capitals in new generation capacities.<br />

This has recently been carried out in a detailed study by<br />

the Arab Union of Electricity about the new generation capacities<br />

needed in the Arab Countries during the period 2010 – 2020.<br />

The study estimated that 200 GW of new generation capacities<br />

have to be build over the above mentioned period in all Arab<br />

Countries. The above estimates were based on the average<br />

growth rate of 6 – 10 % in electricity demand over the period<br />

2003 – 2010, while the growth rate in the world is less than 3 %,<br />

and in the developed countries it is around 1.2 %. According to<br />

the forecast announced by electrical utilities in the Arab countries<br />

for the coming 10 years, the growth rates in electricity<br />

demand will keep its high trend as in the past years.<br />

Table 1<br />

Installed capacity in Arab countries<br />

2010 2020<br />

Installed capacity 188 GW 388 GW<br />

Steam turbines 29.8% 35%<br />

Gas turbines 42.5% 25%<br />

Combined cycle 15.3% 27%<br />

Diesel 1.9% 1.4%<br />

Renewable 0.4% 3%<br />

Hydro 5.6% 4%<br />

Nuclear – 1%<br />

Others 4.5% 2.8%


The Eight Countries Interconnection<br />

As a rule of thumb, 20 – 25% of this capacity can be substituted<br />

by the interconnection projects among the countries. In other<br />

words, about US $ 4 – 5 billions can be saved every year over the<br />

coming 10 years.<br />

Another advantage of the interconnection projects is to<br />

exchange energy during the peak demand hours. From the statistical<br />

data collected by the Arab Union of electricity every year,<br />

the timing of peak demand in the east and west Arab countries<br />

takes place in different timing rather in the Arab Gulf countries.<br />

In the east and west countries, peak demand hours are between<br />

18 – 21 hours in the evening, while in the Gulf countries they are<br />

between 13 – 14 hours in the afternoon.<br />

Electricity interconnection<br />

among Arab countries<br />

The cooperation between the Arab countries in electrical interconnection<br />

started in the 1950s. But the quantities of<br />

exchanged energy were modest because of the limited<br />

designed capacity and the low voltage of the interconnection<br />

grids at that time.<br />

In the western Arab countries, Tunis and Algeria were interconnected<br />

in 1953 – 1954 on the voltage of 90 KV. In 1980 – 1984<br />

the connection was enhanced by adding two lines of 150 KV and<br />

220 KV. In 1988 – 1992 the Algerian grid was connected to the<br />

Moroccan with two lines of 220 KV .<br />

As for the eastern Arab countries, the connection between<br />

Syria and Lebanon in 1973 and 1977 was at 66 KV and 230 KV,<br />

while the Syrian and Jordanian grids were first interconnected in<br />

1977 and 1981 at 66 KV and 230 KV.<br />

Technical studies for electrical interconnection between the<br />

Arab Countries at high voltages started after the mid 1980s,<br />

funded by the Arab Fund for Economical and Social Development.<br />

These studies lead to the implementation of many<br />

projects in the eastern and western Arab countries in the late<br />

1990s. Meanwhile the electrical utilities in the Arab Gulf countries<br />

conducted the feasibility studies, and then achieved the<br />

interconnection in stages started in the year 2009.<br />

The following main interconnection projects were completed<br />

and put in operation started in 1998.<br />

Libya<br />

The feasibility study of this project was initiated to interconnect<br />

Egypt, Jordan, Syria, Turkey, and Iraq, and then Lebanon,<br />

Libya, and Palestine were added in later stages. (↓ Figure 1)<br />

The following table (2) shows the voltage level of the interconnection<br />

lines, and the operation date of each line. The exchange<br />

energy between the countries in 2010 was 2,467 GWH.<br />

Table 2<br />

Voltage level of the interconnection lines<br />

Eight Countries Project<br />

Country Voltage level KV Date of Operation<br />

Egypt – Jordan 400 1998<br />

Jordan – Syria 400 2001<br />

Syria – Lebanon 400 2009<br />

Syria – Iraq<br />

›››››‹‹‹‹‹<br />

Bulgaria<br />

›››››‹‹‹‹‹<br />

Egypt<br />

Lebanon<br />

Palestine<br />

›››››‹‹‹‹‹<br />

Turkey<br />

›››››‹‹‹‹‹<br />

›››››‹‹‹‹‹<br />

›››››‹‹‹‹‹<br />

Greece<br />

›››››‹‹‹‹‹<br />

›››››‹‹‹‹‹<br />

Syria<br />

›››››‹‹‹‹‹<br />

Jordan<br />

›››››‹‹‹‹‹<br />

›››››‹‹‹‹‹<br />

not yet<br />

Egypt – Libya 220 1998<br />

Jordan – Palestine 132 2008<br />

Iraq – Turkey<br />

not yet<br />

Turkey – Europe 400 2010<br />

In spite of the huge capital cost of the above projects, and the<br />

need of using the interconnection lines to the maximum limit,<br />

the real experience is not satisfactory. The exchange power<br />

between Egypt, Jordan, Syria, Lebanon, Palestine, and Libya was<br />

only 1% of the total generated energy in these countries in<br />

2010. Table (3) shows the exchange power between the above<br />

countries.<br />

Another technical feature in this regard is that the utilization<br />

of the lines capacity does not exceed 25% in best cases. Of course,<br />

the reason behind that is the shortage of excess capacity in most<br />

of the interconnected countries, especially in the summer season.<br />

Iraq<br />

Figure 1:<br />

Eight Countries Interconnection<br />

Transmission | Electricity Interconnection <strong>Projects</strong><br />

54 | 55


Table 3<br />

Exchange power in 2010<br />

Eight Countries Project (GWH)<br />

From<br />

To<br />

Europe through Spain. Morocco imports about 4,000 GWH<br />

every year from Spain. This is almost equal to all exchange<br />

power between all Arab countries.<br />

Jordan<br />

Syria<br />

Palestine<br />

Lebanon<br />

Egypt<br />

Libya<br />

Table 4<br />

Exchange power in 2010 between<br />

Morocco, Algeria and Tunisia (GWH)<br />

Jordan 53.7 3.8<br />

Syria 224.2 800 19<br />

Palestine<br />

Lebanon<br />

Egypt 445.8 63 621 116<br />

Libya 120<br />

Total 670 63 53.7 1421 142.8 116<br />

The Maghreb Interconnection<br />

This project includes three countries: Tunis, Algeria, Morocco,<br />

They have a coordination body called COMELEC (includes: Libya,<br />

Tunisia, Algeria, Morocco and Mouritania), to take care of the<br />

cooperation in the electricity sector in these countries, especially<br />

the interconnection business. The interconnection<br />

started between Tunisia and Algeria since 1953 by two lines of<br />

90 KV, and then new lines with higher voltage were erected. The<br />

interconnection between Algeria and Morocco started in 1992<br />

via a 220 KV line. The necessary lines and installations between<br />

Libya and Tunisia were completed in 2003, but the technical<br />

tests did not get through, and more investigations are required.<br />

Mauritania is still in the study stage.<br />

Country Import Export<br />

Algeria 736 803<br />

Tunisia 19.2<br />

Morocco 4,583* 643<br />

* About 4,000 GWH from Spain<br />

The following table (5) shows the voltage level of the interconnection<br />

lines, and the operation date of each line. The exchange<br />

energy between the countries in 2010 is 2,200 GWH.<br />

Table 5<br />

Voltage level of the interconnection lines<br />

Maghreb Project<br />

Country Voltage Level KV Date of Operation<br />

Tunisia — Algeria<br />

Algeria — Morocco<br />

2*90<br />

220<br />

150<br />

400 → 220<br />

2*220<br />

400 → 220<br />

1953 – 1954<br />

1980<br />

1984<br />

2005<br />

1992 – 1998<br />

2006<br />

Libya — Tunisia 2*225 2003 **<br />

** Libya — Tunisia interconnection is still under testing.<br />

Arab Gulf Countries Interconnection (GCC)<br />

Morocco<br />

Tunisia<br />

This project includes the following countries: Kuwait, Bahrain,<br />

Saudi Arabia, Qatar, Emirates, and Oman. The project was<br />

divided into three stages:<br />

›››››‹‹‹‹‹<br />

Algeria<br />

›››››‹‹‹‹‹<br />

›››››‹‹‹‹‹<br />

Libya<br />

Stage 1: Interconnecting Kuwait, Bahrain,<br />

Saudi Arabia, and Qatar.<br />

This stage was completed and put in operation in July 2009<br />

using 400 KV overhead lines.<br />

Figure 2<br />

Maghreb Countries Interconnection<br />

Stage 2: Reinforcement and upgrade of the internal networks<br />

in Emirates and Oman.<br />

The work was completed in 2006.<br />

The same feature in the Maghreb Interconnection as in the<br />

Eight Countries Project, the exchange power is less than 2% of<br />

the generated energy in the involved countries. Table (4) shows<br />

the exchange power in 2010 between Morocco, Algeria, and<br />

Tunisia. Morocco is the only Arab country interconnected with<br />

Stage 3: interconnection of Emirates and Oman<br />

with the rest of the countries.<br />

The first part of the work, which connects Emirates with the<br />

common networks, was completed and put in operation in<br />

2011, while Oman is still under study.


Interconnection between Arab countries<br />

and Europe<br />

Iraq<br />

Kuwait<br />

Al Zour<br />

››››››››‹‹‹‹‹‹‹‹<br />

Al Fadhili<br />

››››‹‹‹‹<br />

Ghunan<br />

Saudi Arabia<br />

Arabian<br />

Gulf<br />

››‹‹<br />

›››››‹‹‹‹‹<br />

Salwa<br />

Bahrain<br />

Jasra<br />

Qatar<br />

Doha<br />

›››‹‹‹<br />

›››››‹‹‹‹‹<br />

Shuwaihat<br />

Iran<br />

›››››››››‹‹‹‹‹‹‹‹‹<br />

Figure 3<br />

Arab Gulf Countries Interconnection – GCC<br />

United Arab<br />

Emirates<br />

Oman<br />

Al Wasset<br />

›‹<br />

Al Ouhah<br />

Oman<br />

Gulf<br />

of Oman<br />

In 2003 a study was carried out funded by the European Union<br />

to examine the feasibility of interconnecting the north and<br />

south countries around the Mediterranean Sea. In 2010 an<br />

update study was again carried out for the same purpose. In<br />

the updated study, it was found that interconnection between<br />

both sides of the sea can be achieved by using HVDC technology,<br />

especially the distances between connection points are too<br />

long and the seabed for electric power corridors ranges<br />

between 550 m and 2,000 m as shown in figure 5.<br />

The only existing interconnection with Europe is between<br />

Morocco and Spain. Another project is going on between Tunis<br />

and Italy. A share holding company is established between the<br />

two countries. The purpose is to build a 1,200 MW power station,<br />

and the 500 KV DC interconnection lines between Tunis<br />

and Sicily.<br />

The main characteristics of the project are:<br />

Conclusions and recommendations<br />

– The project is run by a dependent authority, which helps to<br />

work on efficient technical and financial bases.<br />

– Construction of HVDC back to back substation to connect<br />

the Saudi system which uses 60 Hz with other systems<br />

which use 50 Hz. This substation is considered to be the<br />

largest in the world (1,800 MW), and the only one in the<br />

Middle East.<br />

– The design of the interconnection lines is suitable for the<br />

power exchange between the connected countries, but it<br />

needs reinforcement in the future, especially if exporting<br />

power is considered from the Gulf area to Europe.<br />

– The project is considered to be a connection point between<br />

the Gulf countries and the Eight Interconnection Project,<br />

after connecting Egypt networks with Saudi networks,<br />

which is now under studies.<br />

– The exchange power between countries in 2010 was about<br />

322 GWH. This counts about 0.1 % of the generated energy. It<br />

is a modest amount, but it is expected to increase in the<br />

coming years.<br />

1 Three regions of the Arab World are interconnected in an isolated<br />

mode: Mashreq, Maghreb, and the Gulf countries. It is<br />

the time to take the necessary steps to interconnect the rest<br />

of other countries, such as Yemen and Sudan, and to interconnect<br />

the three regions together. The first step was taken<br />

towards this target by connecting Saudi Arabia with Egypt.<br />

2 It is important to complete the interconnection between<br />

Libya and Tunisia as well as Iraq and Turkey, so as to achieve<br />

the interconnection of the south part of the Mediterranean<br />

Sea with Europe.<br />

3 To maximize the benefits of the interconnections, it is necessary<br />

to establish the common Arab electricity market.<br />

4 To facilitate exchanging power between south and north<br />

countries around the Mediterranean Sea, especially from the<br />

renewable projects, European Electrical utilities are required<br />

to help technically and financially to speed up the interconnection<br />

between both sides.<br />

Spain<br />

Italy<br />

›››››››››‹‹‹‹‹‹‹‹‹<br />

Existing 2*400 KV<br />

›››››‹‹‹‹‹<br />

← Length 250 km →<br />

Seabed 550 m<br />

››››››››››››‹‹‹‹‹‹‹‹‹‹‹‹<br />

Algeria<br />

← Length 330 km →<br />

Seabed 2000 m<br />

›››››››››››››‹‹‹‹‹‹‹‹‹‹‹‹‹<br />

›››››‹‹‹‹‹<br />

››››››‹‹‹‹‹‹<br />

Tunisia<br />

››‹‹<br />

››››››››››‹‹‹‹‹‹‹‹‹‹<br />

← Length 200 km →<br />

Seabed 670 m<br />

Libya<br />

››››››››››‹‹‹‹‹‹‹‹‹‹<br />

← Length 520 km →<br />

Seabed 550 m<br />

Figure 5<br />

Interconnection between Arab countries and Europe<br />

Morocco<br />

Transmission | Electricity Interconnection <strong>Projects</strong><br />

56 | 57


Smart Grids –<br />

Powering a Cleaner <strong>Energy</strong> Future<br />

Smart grids will improve efficiency, reliability and safety<br />

of the power supply chain, a radical shift from the problems faced today.<br />

Siemens Middle East<br />

Dietmar Siersdorfer | CEO <strong>Energy</strong> Sector, Middle East<br />

Few people purposely set out to waste energy. In fact, if you talk to individuals, corporations,<br />

utilities and governments around the world, everyone is aware of the impending energy<br />

demand growth that will come from the forecasted increase in regional and global population.<br />

The need to spare and share and distribute resources more evenly is crucial now.<br />

Sustainability is the buzzword. The political will is there, the good intentions seem sincere,<br />

but it is not happening fast enough. Not yet. We need to think and act smarter and<br />

technology will be the answer. Experts believe that the world needs intelligent power grids in<br />

order to meet the growing demand for energy in a way that is eco-friendly and reliable.<br />

Consequently, the smart grid industry will see increasingly dynamic growth fueled by climate<br />

change, fast increasing urbanisation, and economic stimulus programs.<br />

Smart grids are a key focus area for industry and energy giants<br />

worldwide. Siemens, for example, is demonstrating expertise<br />

in smart metering, grid intelligence and utility data management<br />

in countries like the UK, Germany, Denmark, and Sweden.<br />

Smart grid technology will see a high degree of intelligence in<br />

the energy systems where all kinds of infrastructure are connected<br />

along the entire energy chain. One of the key advantages<br />

of the smart grid is that every source of energy – conventional,<br />

non-conventional and renewables – can all be fed into<br />

the system that can partially act like a storage for a more strategic<br />

energy use. Combining all areas of expertise gives Siemens<br />

an early starter advantage to help solving the looming<br />

monumental issues of scarcity, power cuts and unreliable<br />

energy supply in the MENASA (Middle East, North Africa and<br />

South Asia) region and beyond.


The Middle East –<br />

moving towards an energy mix<br />

While smart grid technology is already a reality in many western<br />

countries, the uptake in the Middle East market is steadily<br />

gaining momentum. Smart grids will improve efficiency, reliability<br />

and safety of the power supply chain, a radical shift from<br />

the problems faced today. A showpiece of this new energy<br />

thinking in the Middle East is Abu Dhabi’s unique carbon neutral<br />

city, Masdar. As well as delivering the advantages of a smart<br />

grid, Masdar will present the concept of a working research and<br />

development centre as the city builds and expands. The global<br />

environmental advantages of shifting to smart grid technology<br />

are obvious. It is estimated that this shift could save up to one<br />

billion metric tonnes of CO 2 by 2020. In a 2009 Duke <strong>Energy</strong><br />

case study in the U.S.A., it revealed that peak demand in America<br />

could be reduced by 20 % resulting in 115 GW of power generation<br />

and transportation capacity to be spared, with financial<br />

savings up to US $ 48 billion for the country’s largest utility<br />

companies.<br />

The Middle East does not have the best reputation for efficient<br />

energy consumption. Even oil rich Saudi Arabia still suffers<br />

power cuts as the country tries to cope with rising power<br />

demand. Various initiatives to resolve the situation are happening<br />

in different countries but the lack of a coordinated<br />

approach is proving costly. The UAE still has the highest per<br />

capita environmental footprint for the third time in a row,<br />

according to a report released in October 2010 by the World<br />

Wide Fund for Nature (WWF). This has not fallen on deaf ears<br />

and the country’s utility leader ADWEA in Abu Dhabi as well as<br />

DEWA in Dubai are looking at ways to make their systems more<br />

energy efficient. Many regional utility companies are running<br />

some kind of pilot scheme with positive feedback. Qatar, Turkey,<br />

Lebanon, and Oman are leading the way with plans for<br />

additional capacity coming on line in the near future.<br />

There is a need to create stronger awareness of the problem. In<br />

the wealthier UAE, particularly in the northern Emirates, there<br />

is a lack of power and the Federal Electricity and Water Authority<br />

(FEWA) has a campaign about electricity & water conservation,<br />

so definitely there is an effort going on by the utilities.<br />

People need to change habits and with heavy subsidies for electricity<br />

and water to citizens in the UAE and other countries, the<br />

incentive is not always obvious. The energy companies are<br />

appealing to people to take the first step and to stop wasting<br />

water and electricity. With this awareness in place, efficient use<br />

of water and energy will be the next focus.<br />

The shift to alternative energy sources in the Middle East<br />

comes at a time when the region realises its increasing dependence<br />

on a mix of energy sources to meet its growing demand.<br />

While grid parity – the point at which alternative means of generating<br />

electricity is equal in cost, or cheaper than grid power –<br />

is still a few years away, solar power for example is gradually<br />

gaining popularity in the Middle East and the surrounding<br />

region. Renewable sources in general could reach 17 % globally<br />

by 2030. For comparison, in 2008, their share was a mere 8 %.<br />

The market for CSP, concentrated solar power, should see strong<br />

growth rates with estimates from 285 MW of new units in 2009<br />

to as much as 3,900 MW a year by 2025, with some coming<br />

from the Middle East. The potential in desert areas is tremendous<br />

and solar power generation is seen as the most important<br />

part of the path breaking Desertec project. This ambitious solar<br />

power project has the support of the EU and developing world<br />

and is encouraging desert regions to harness and develop clean<br />

energy from the sun with a long-term goal of exporting excess<br />

supply to Europe by 2050.<br />

While smart grid technology is already a reality in many western countries,<br />

the uptake in the Middle East market is steadily gaining momentum.<br />

A showpiece of this new energy thinking in the Middle East is Abu Dhabi’s<br />

unique carbon neutral city, Masdar.<br />

Smart grid technology is already helping to bring this information<br />

to the utilities, so they can plan their investments in their<br />

electricity and water networks and forecast demand with a better insight<br />

on how to control the electricity and water usage.<br />

Transmission | Smart Grids<br />

58 | 59


An investment pays back<br />

Sustainable urban energy planning<br />

for a diverse region<br />

Information provided by the smart grid managing all energy<br />

sources as well as consumption, will enable utilities to determine<br />

demand more accurately and to distribute the load more<br />

evenly shaving off peak loads based on the available generation<br />

at any given time. Smart grid technology is already helping to<br />

bring this information to the utilities, so they can plan their<br />

investments in their electricity and water networks and forecast<br />

demand with a better insight on how to control the electricity<br />

and water usage. Currently, the region uses energy on<br />

demand and the randomness of use puts huge pressure on the<br />

system, leading to occasional blackouts at peak times. The<br />

smart grid can help to distribute the load, recognise peak situations<br />

and reserve and shift non-essential loads to off-peak<br />

times. The obvious savings and resultant efficiency in the longterm<br />

will make the investment worthwhile.<br />

The GCC Interconnection Authority wants to lead the way to<br />

establish “a complete interlinking of the infrastructure network<br />

among the GCC states, especially in the fields of electricity,<br />

transportation, communications, and information.” A Royal<br />

Decree established the authority in 2001, and while it strongly<br />

supports and encourages regional integration, the roll out has<br />

been slow. The GCCIA wants to see a reduction in generating<br />

capacity in every system that can be achieved by sharing power<br />

reserves. Lower operating costs should also be an advantage<br />

and perhaps one day, provide the opportunity to engage in<br />

regional and international energy trading. All this appears a<br />

long way off, as each country is busy building its own capacity<br />

for financial and political reasons and also making sure that<br />

they can be isolated in the event of any collective faults in the<br />

regional grid.<br />

There has been no real game changer in the energy sector<br />

until we started talking smart grids. The outdated systems in<br />

place around the world do not make us think too much about<br />

energy usage or wastage. In 2010, the United States of America<br />

and Canada were still suffering unpredicted blackouts in many<br />

cities and few people know how much they pay for their<br />

monthly utilities bill. In such emerging areas, the pressure on<br />

available resources has been swift, demanding and, sadly, dilapidating<br />

and destructive.<br />

More than half the world’s population lives in cities and urbanisation<br />

is expected to increase even further. Without a strategic<br />

plan in place, haphazard energy provision has meant intermittent<br />

services in different areas as we have seen in recent years.<br />

The answer to this challenge lies in more intelligent systems<br />

that are built with a clear view at future demands. Economies<br />

of scale, conservation of energy and convenience to the customers<br />

are essential elements, all of which are best addressed<br />

by smart grids.<br />

Problems appear to be custom built in every country due to<br />

the lack of any coordinated system development over the years.<br />

While waiting for a real crisis to happen cannot be an option,<br />

the threat of an energy catastrophe looms closer every year.<br />

Scientists at the Global Environment Facility, a fund that<br />

works with developing countries on climate change issues, say<br />

the Arab world is at risk. The Arab Forum for Environment and<br />

Development state that rising sea levels and water scarcity will<br />

have a huge impact and one of the big contributors to this in<br />

the region is the United Arab Emirates. The UAE <strong>Energy</strong> Ministry<br />

expects demand for power to grow to 33,400 MW by 2020, a<br />

more than 80 % rise from current consumption levels. The<br />

country is already struggling to meet demand for natural gas<br />

and while there have been efforts in the UAE to create awareness<br />

among consumers the resulting impact has been minimal.<br />

Further afield is Iraq, the country is suffering for different<br />

reasons. Iraq has had no substantial money spent on electricity<br />

infrastructure, yet, and most people still depend on generators<br />

for power. Kuwait is building its first power plant in 20 years,<br />

and the working day has had to be cut short to ease the pressure<br />

on the power grid. Syria has been plagued by a shortage of<br />

power in recent years, and the World Bank estimates that the<br />

country will need more than US $ 10 billion in investment to<br />

resolve the power dilemma. Egypt has already taken unpopular<br />

action to cut subsidies and is planning on adding new capacity.<br />

Pakistan remains crippled by an ongoing and worsening electricity<br />

crisis that is also threatening the country’s fragile political<br />

situation. Looking around the region, the need to find a<br />

coordinated energy solution is important for sustainable economic<br />

development and social well-being, and inactivity is no<br />

longer an option.<br />

Making the big shift to smart grids will demand investment,<br />

but not doing so will be a more expensive route. Middle Eastern<br />

utilities are beginning to become unbundled, not yet privatised,<br />

so the process is getting easier. Utility companies have<br />

signaled their intention to reduce subsidies and introduce<br />

more realistic electricity and water charges. In the UAE alone<br />

more than 1.5 million smart metres are to be installed and the<br />

information gathered from these meters will help utility com-


A showpiece of a new energy thinking in the Middle East is Abu Dhabi’s<br />

unique carbon neutral city, Masdar. As well as delivering the advantages<br />

of a smart grid, Masdar will present the concept of a working research<br />

and development centre as the city builds and expands.<br />

panies plan for the future. There will be a lot of infrastructure<br />

to be invested in by the utilities to be able to use this information;<br />

there will be new control centres and new technologies<br />

that will help the utilities to control the usage of electricity and<br />

water.<br />

This is where Siemens sees huge market potential in the<br />

near future. It is just a first step, and the smart meter is just one<br />

component of the smart grid. The stability of the grid is equally<br />

essential and the technology exists to measure and sustain this<br />

stability in order to prevent blackouts. Phasor measurement<br />

systems that will monitor the stability of the grid will need to<br />

be installed to ensure consistency and efficient operation<br />

across all demand cycles. I estimate that each country will need<br />

to initially invest approximately US $ 20 to US $ 30 million to<br />

kick-start this initiative. I am encouraged by the fact that many<br />

utilities in the Middle East region have the money in reserve as<br />

part of their initial energy upgrade plans.<br />

Changing consumer behaviour is never an easy task, yet,<br />

this will be the key component in delivering energy efficiency.<br />

By controlling their behaviour and using energy when it is least<br />

expensive, consumers can help their utilities as well as themselves.<br />

In more developed environments, customers are already<br />

demanding greater transparency regarding their personal<br />

power and water consumption. Many countries in the Middle<br />

East have already initiated public awareness campaigns.<br />

Schools and utility companies are cooperating in targeting<br />

junior schools and delivering more public awareness campaigns,<br />

but cheap energy in the Middle East has produced<br />

nations of energy addicts with little need or consideration for<br />

conservation. <strong>Energy</strong>, particularly electricity and clean water,<br />

has become a basic human right. Its supply and maintenance<br />

demands finance and upkeep from utilities and governments<br />

but people also need to demonstrate more responsible attitudes<br />

towards these invaluable resources.<br />

The key to a sustainable future for the region lies in investing<br />

in smart grid technologies and investing in educating people<br />

to develop more responsible attitudes towards consumption<br />

of invaluable and ever depleting natural resources.<br />

Transmission | Smart Grids<br />

60 | 61


Ground breaking for Dukhan Road Super<br />

Doha is growing<br />

Qatar Grid<br />

Expansion Project<br />

Fichtner GmbH & Co. KG<br />

Anne-Katrin Schneider | Project Assistant, Nebojsa Jokanovic |<br />

Project Engineer and Carsten Mohr | <strong>Projects</strong> Director<br />

“Al Dahama”, Arabic for the flower of the spring, was chosen as the logo for the campaign<br />

waged by the desert country of Qatar in its bid to host the Olympic Games in 2016.<br />

This is indeed an apt symbol for this pulsing, colorful Emirate.<br />

Although Doha’s application was unsuccessful in this case, it<br />

has already been selected as the venue for the Soccer World<br />

Cup in 2022. Doha, the capital of Qatar, used to be an enormous<br />

construction site for some time now: there is hardly any corner<br />

of the city where construction is not underway and there is no<br />

traffic link that does not have to be diverted twice per year for<br />

upgrading and widening. Everything is to be made bigger, better,<br />

quicker and, above all, more modern. This is certainly a<br />

realistic objective, thanks to the availability of revenues from<br />

the second biggest natural gas deposits in the world. To keep<br />

pace with the breathtaking rate of growth, the state-owned<br />

energy supply utility, KAHRAMAA, has instituted an expansion<br />

programme for its electrical networks, split into several phases.<br />

In December 2005, a consortium of Fichtner and the Serbian<br />

company Energoproject was awarded a contract for rendering<br />

engineering services of Phase VI of this expansion programme.<br />

88 new 220/132/66/11 kV transformer substations as<br />

well as the extension of 27 existing transformer substations<br />

with transformer ratings totalling 5.3 GVA and a capital investment<br />

volume of just about € 1.0 billion had to be planned, constructed<br />

and connected to the national grid.<br />

A site office was opened in early 2006 and the number of<br />

employees steadily rose, as in autumn 2006 the joint venture<br />

was retained for the subsequent Phase VII of the project. Within<br />

Phase VII, additional three new 400/220/132/66/11 kV transformer<br />

substations on the newly introduced 400 kV EHV level<br />

as well as an additional 32 substations on the 220/132/66/33/11<br />

kV levels, with transformer ratings totalling 16.2 GVA and a capital<br />

investment volume of just about € 1.6 billion had to be<br />

planned, constructed and connected to the national grid.


In both expansion phases, gas-insulated switchgear (GIS) technology<br />

was used throughout with a total of 1,744 feeders. 175<br />

power transformer units were installed, exclusively threephase<br />

transformers in units of 800 MVA and 315 MVA as autotransformers<br />

and 200 MVA, 160 MVA, 100 MVA, 40 MVA, 10 MVA<br />

as multi-winding transformers. The projects were rounded off<br />

by 145 km of XLPE cables, computerised state-of-the-art switchgear/SCADA<br />

technology based on IEC 61850 and telecommunications<br />

employing SDH technology hooking up the substations<br />

to the national load dispatch centre via redundant high-speed<br />

fibreglass data channels.<br />

In order to assess the dimensions of these expansion phases,<br />

it is to be mentioned that the capacity of each of the eight 800<br />

MVA transformer units installed is in the same range as the<br />

installed power of a modern coal fired combined cycle power<br />

station actually under construction in Germany (e. g. in Karlsruhe<br />

or Wilhelmshaven) and even higher than the total<br />

installed capacity of many countries in the world bigger than<br />

Qatar.<br />

Due to the complexity of the project and number of interfaces<br />

involved and despite the huge investment volume, the<br />

works related to phases VI and VII were attributed to two main<br />

contractors only, a consortium of Siemens Germany and Siemens<br />

India (Siemens) and a consortium of ABB Germany and<br />

Nexans France (ABB/Nexans). The higher number of substations<br />

and its connections to the existing grid involved in this<br />

challenging task were engineered, procured and constructed<br />

(EPC) by Siemens whereas ABB/Nexans was awarded with the<br />

engineering, procurement and construction (EPC) of the other<br />

substations and the important task of introducing the new<br />

400 kV voltage level. Both EPC contractors were already familiar<br />

with the local conditions due to previous projects with KAH-<br />

RAMAA.<br />

The project management and lead engineers for the different<br />

work portions were deployed to the Doha office as KAH-<br />

RAMAA’s direct counterparts. This core team was supported by<br />

additional engineering staff for participating in design workshops,<br />

managing interfaces between contracts and with local<br />

authorities, reviewing contractors design documents, drawings<br />

and calculations, supervising the construction of the works<br />

and commissioning.<br />

In addition, the Doha office was supported by a dedicated<br />

engineering team in the Stuttgart head office who provided<br />

expertise in special fields of application and carried out about<br />

250 shop inspections in Europe, Asia or South America in line<br />

with KAHRAMAA quality requirements. The services rendered<br />

summed up to more than 1,400 man-months.<br />

It goes without saying that within a project of this order of<br />

magnitude, problems were unavoidable: this started with the<br />

struggle to gain possession of the concrete that was also needed<br />

for constructing new roads and hundreds of high-rise buildings,<br />

and ranged up to conflicts regarding transportation for<br />

the building material that had to be brought to the construction<br />

sites.<br />

Even the port capacity was no longer sufficient at certain<br />

times to land the urgently required material for the construction<br />

sites. The subsoil, too, was always good for springing surprises.<br />

Sometimes it was the groundwater and at others it was<br />

the torrential rain that filled the excavation pits, or huge<br />

underground caverns that were suddenly encountered during<br />

excavation and that had to be filled to allow the erection of the<br />

structures. As a result, many construction sites remained<br />

brightly lit even in the middle of the night, as deadlines were<br />

tight and had to be met without fail.<br />

However, all these efforts were finally crowned with success.<br />

The installations with the highest supply priority came on<br />

stream already in the final quarter of 2008, and by the first<br />

quarter of 2011 commissioning of all substations and network<br />

connections had been completed.<br />

Remaining consulting services concern the warranty period,<br />

which is 24 months, and includes monitoring for warranty<br />

cases – a service likewise provided by the consortium of Fichtner<br />

and Energoproject.<br />

HV cable drum<br />

400 kV GIS substation in Abu Naklah Super<br />

Transmission | Qatar Grid Expansion Project<br />

62 | 63


Installation of a 132 kV line on concrete masts, near Nimr, in Oman<br />

Market Introduction<br />

of Innovative Mast Solutions in the Middle East<br />

Europoles GmbH & Co. KG<br />

Tobias Fersch | Head of Special <strong>Projects</strong><br />

Rising energy demand as a result of industrialisation and population growth require the<br />

expansion of power networks and the enhancement of mains reliability. This applies especially<br />

to the high-growth regions of the Middle East. In order to meet such increasingly demanding<br />

requirements, new and innovative solutions for overhead power lines play a critical role.<br />

Initial situation in Oman<br />

Petroleum Development Oman (PDO), the petroleum enterprise<br />

in the Sultanate of Oman, has experienced serious problems<br />

with the wooden pole systems that they have used until<br />

now. Their greatest difficulties involve pole fires caused by arcovers<br />

on polluted insulators. Also responsible here is the<br />

extreme desert climate with scarce precipitation, very high<br />

maximum temperatures, enormous daily temperature fluctuations,<br />

and a huge amount of dust and salt in the air. Additional<br />

problems with the wooden pole systems used previously<br />

were greatly non-uniform pole quality, extreme pole sensitivity<br />

to ambient conditions, and damage from termites and fungus.<br />

These problems had costly consequences for PDO, since<br />

every site in its oil fields requires power supply. Power outages<br />

result in very expensive shutdowns of pumping. The solution<br />

for Oman was the use of spun-concrete masts made of highstrength<br />

concrete.


Background information<br />

on high-strength spun concrete<br />

Centrifuge technology for spun-concrete production has been<br />

applied for more than 50 years now, and has been continuously<br />

developed further by the application of high-strength concrete.<br />

One special feature of this production technique is the centrifuging<br />

process, in which the concrete rotates horizontally in<br />

molds at approx. 600 rpm on a spinning machine. This process<br />

distributes the freshly mixed concrete uniformly and<br />

presses it against the steel mold shells at 20 g. This produces an<br />

absolutely smooth and visibly nonporous concrete, in addition<br />

to a homogeneous concrete structure with extremely high<br />

strength. As a result, the compressive strength of this concrete<br />

is up to three times the values of normal concrete used in highrise<br />

construction. The poles and masts are prestressed with<br />

steel strands, which produces a very high loadbearing capability<br />

with extremely slender pole and mast cross-sections.<br />

Concrete masts as a backbone<br />

of oil production<br />

To solve the problems described above, with their overhead<br />

power-transmission lines, PDO decided on the use of spun-concrete<br />

masts as a replacement for wooden poles. The facts that<br />

convinced PDO were the high durability of concrete masts with<br />

respect to corrosion and extreme climate conditions – and the<br />

grounding system that is integrated inside the masts. Masts<br />

from 12 to 22 m in length were installed, with their foundations<br />

provided directly in the limestone ground.<br />

In addition, it was possible to increase the distance between<br />

the masts from 80 to more than 100 m, which reduced the<br />

total number of masts by 25 %. This did not only save erection<br />

and foundation costs, but also allowed fewer crossarms and<br />

insulators. This meant that power-line costs per kilometre were<br />

similar to the old wooden systems – but the concrete solution<br />

would save money in the long run since there would be no further<br />

costs for preventive or corrective maintenance.<br />

After the very successful installation and use of Europoles<br />

33 kV overhead transmission lines, the first trial section for 132<br />

kV lines on concrete masts was planned and constructed. The<br />

old distance of 100 m between the wooden poles had been doubled<br />

to 200 m for the concrete masts. This halved the number<br />

of masts and foundations. Likewise, this solution eliminated<br />

the problem of pole fires which had occurred very frequently<br />

with the 132 kV lines – and which had led to the complete shutdown<br />

of entire oil fields. Oil output losses in the range of several<br />

million U.S. dollars ceased therefore. A further benefit was<br />

the replacement of the 18 m wooden poles (which were difficult<br />

to procure and very expensive) by an industrially produced<br />

product.<br />

The cyclone Phet, which swept over Oman in 2010 with wind<br />

velocities of more than 150 km/h, represented a severe test for<br />

the new concrete masts. The wooden poles suffered great damage,<br />

with several kilometres of lines torn down in places. There<br />

were no damages to the concrete masts – which prompted the<br />

public power companies in Oman to install concrete masts for<br />

the power supply to the communities they served.<br />

Setting up a local mast production<br />

in Nizwa, Oman<br />

Until late 2008, Europoles shipped a total of well over 2,500<br />

concrete masts for its first projects in Oman by train and by<br />

ship from Germany to Oman. The objective of Europoles development<br />

of the market in Oman, however, was from the very<br />

beginning to set up local production of concrete poles and<br />

masts. Local manufacture in Oman offers great advantages,<br />

owing to ease of access to the required resources, which are<br />

practically universally available. Proximity to the raw materials,<br />

local labor, and short distances to the installation sites enable<br />

short, flexible, and dependable delivery times. Logistical<br />

expenses are furthermore minimized in comparison to distant<br />

production sites. All these factors result in an enormous degree<br />

of planning and supply security.<br />

Europoles, together with Rukun Al Yaqeen – a prominent supplier<br />

in the area of overhead transmission lines that has access<br />

to an outstanding network on the Omani market – founded the<br />

joint venture Europoles Middle East and celebrated the ground<br />

breaking for construction of an advanced plant in Nizwa for prestressed<br />

spun-concrete masts in March 2008.<br />

The result was a factory with a shop-floor area of 3,100 m²,<br />

on a total site of 36,000 m². The new equipment procured for<br />

this installation included a mixing plant, a concreting gantry,<br />

and a centrifuge for masts up to 22 m in height. The total<br />

investment volume for the factory amounted to approximately<br />

US $ 13 million. Production trials at the new spun-concrete<br />

plant in Oman began already in November 2008, when the first<br />

complete mast was lifted out of its steel mold. The production<br />

facility was officially opened in spring 2009.<br />

Technology transfer and quality management<br />

The plant in Oman is integrated into the Quality Management<br />

Systems of the Europoles Group. The quality specifications<br />

applied in Oman are the same as those in Germany – and the<br />

Nizwa plant is regularly examined by internal audit. To achieve<br />

certification in accordance with DIN EN ISO 9001:2008, it was<br />

necessary to successfully transfer the technologies that had<br />

been effectively employed and continuously developed in the<br />

Transmission | Market Introduction of Innovative Mast Solutions<br />

64 | 65


Training of local staff and creation of jobs<br />

concrete mast factory in Germany to Oman. The high-strength<br />

concrete is produced with a fully automated mixing plant outfitted<br />

with sensors for moisture, temperature, density, and the<br />

like. In such production work, an ice generator especially developed<br />

for the Europoles plant is continuously in use. The raw<br />

materials cement, water, etc. are analysed and evaluated in<br />

advance in the company lab and by out-of-house testing institutes<br />

– a process that identifies the best local suppliers and also<br />

guarantees the quality of the concrete in Oman on the very<br />

highest level.<br />

The Oman factory is certified in accordance with ISO 9001<br />

as well as the environmental standards in ISO 14001, and is officially<br />

authorised to supply the European market. The masts<br />

carry the CE mark, which guarantees that they are in line with<br />

European standards.<br />

To assure high production standards in Oman, Europoles Middle<br />

East has extensively invested in professional training of its<br />

Omani factory colleagues in Germany. The staff in Nizwa is<br />

drawn as extensively as possible from the local professional<br />

market, and the many young Omani colleagues hold various<br />

supervisory positions in the plant, ranging from foremen to<br />

plant management. The Omani share of the total plant workforce<br />

has already reached 50 % in the initial phase of the factory<br />

launch.<br />

The first 16 Omani colleagues were trained in an integrative<br />

project in the Europoles parent plant in Germany. The Nizwa<br />

plant creates 120 jobs in Oman, as well as additional employment<br />

in Germany through the technical and administrative<br />

support provided. In addition, Europoles staff from Germany<br />

trains their Omani colleagues in Nizwa, who also receive ongoing<br />

development training in Germany.<br />

The success of the factory in Nizwa – especially in the sense of<br />

career advancement for the Omani staff, maintenance of high<br />

quality standards, and use of locally provided resources – was<br />

recently honoured with a special award. Participating for the<br />

first time in the contest for His Majesty’s Cup Award for the Best<br />

Five Factories in Oman, Europoles Middle East won the award in<br />

December 2010 against 40 other competitors in the country.<br />

Flexural test being conducted<br />

on a 26 m spun-concrete mast in Neumarkt, Germany<br />

The shop floor for<br />

spun-concrete masts at the<br />

Nizwa plant in Oman<br />

An Omani colleague receives on-the-job training in the Europoles plant<br />

in Germany. Shown at the top right of the photo:<br />

His Majesty’s Cup Award for the Best Five Factories in Oman


A 33 kV section pole in a coastal area, near Al Ashkara, Oman<br />

Additional projects in Arabian countries<br />

Owing to their good growth prospects, Arabian countries are<br />

especially interesting for Europoles GmbH & Co. KG – particularly<br />

in the field of infrastructure. Together with local partner<br />

companies, Europoles is prepared to invest in promising markets.<br />

In this sense, Europoles intends to use Oman as a base for<br />

further entry into the Middle East. There are, in addition, sales<br />

offices for North Africa in Algeria and Morocco. Experience<br />

gained in Oman will also benefit North Africa. In the planned<br />

North African production plant, pre-stressed spun-concrete<br />

poles will be produced for development of North African infrastructure:<br />

including railway electrification, power supply,<br />

antenna supports for communication, and illumination of<br />

streets and roads. These efforts will create 300 new jobs, and<br />

Europoles’ own training centre will operate there.<br />

Pre-stressed concrete masts and towers made of high-strength<br />

concrete not only have an exceptional long life cycle (more<br />

than 80 years, according to scientific investigations), but also<br />

offer greater performance features – both of which represent<br />

ideal product characteristics for the demanding climate<br />

regions of the Arabian world. Owing to their cost effectiveness,<br />

they offer the ideal basis for sustainable development of infrastructure,<br />

and they promote the local economy by production<br />

in the area.<br />

Transmission | Market Introduction of Innovative Mast Solutions<br />

66 | 67


<strong>Energy</strong> Efficiency<br />

While efforts are being taken to make the production and distribution of<br />

energy and electricity more sustainable, the most effective solution to avoid<br />

rising prime energy consumption costs and environmental damages is to<br />

reduce the demand of electricity in the first place. <strong>Energy</strong> efficiency and green<br />

building architecture play a central role in the overall plans to promote<br />

energy sustainability. Better insulation techniques and resorting to vernacular<br />

architectural solutions are ways to achieve higher energy efficiency.<br />

As Germany is implementing its scheme to overhaul its real estate structure<br />

and make it more energy-efficient, technological leadership of German<br />

companies will also lead to an increasing German participation in the<br />

improvements in energy efficiency in the Arab world. Legal frameworks and<br />

encouraging programs to promote the energy efficiency in Arab countries<br />

are underway and both sides can profit from each others’ experiences.<br />

This chapter looks at Arab-German projects on energy efficiency in the United<br />

Arab Emirates, Jordan and North Africa.<br />

<strong>Energy</strong> Efficiency<br />

68 | 69


<strong>Energy</strong> Efficiency<br />

in the Construction Sector in the Mediterranean<br />

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ)<br />

Florentine Visser | Med-Enec Key Expert, Dr. Nikolaus Supersberger |<br />

Senior Business Developer <strong>Energy</strong>, International Services<br />

Economic development improves living standards; however, the reverse side is an increase<br />

of energy consumption, also in the Southern and Eastern Mediterranean countries.<br />

With growing populations in this region the national energy consumption is rising even more.<br />

In addition to that the energy prices are expected to rise,<br />

whether for oil, gas or electricity, as a result of a growing<br />

demand on the world energy market and due to a decrease in<br />

supply together with higher supply costs. Therefore governments<br />

in the South East Mediterranean region are starting to<br />

remove subsidies on energy prices as it is becoming a heavy<br />

load for the state budget.<br />

<strong>Energy</strong> saving is becoming a key issue not only for the economic<br />

development and energy security of a country, but it<br />

also pays off for companies and individual households. The<br />

benefit for all is that the reduction of energy consumption<br />

helps to lower the emission of greenhouse gases, thus contributes<br />

to environmental sustainability and avoiding the negative<br />

effects of climate change: rising of temperature and sea level,<br />

floods and droughts.<br />

Electricity Consumption Building Sector<br />

(% of Total Electricity Consumption)<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

Source: MED-Enec<br />

58 56<br />

40 40<br />

70 62<br />

47 47<br />

ALG EGY Jor Leb Mor Pal Tun Syr


Administrative building for the South Sinai Governorate Project in Egypt.<br />

Source: MED-ENEC<br />

Policy Development<br />

In the southern and eastern Mediterranean countries the<br />

building sector is responsible for up to 60 % of the final electricity<br />

consumption. At the same time, this sector has the highest<br />

potential for energy savings and the use of renewable energies.<br />

Thus, energy efficiency addresses crucial energy challenges<br />

in the Euro-Mediterranean region.<br />

MED-ENEC is a regional project funded by the European<br />

Union promoting the use of energy efficiency measures and<br />

renewable energy systems in southern and eastern Mediterranean<br />

countries. The second phase of the MED-ENEC project<br />

started its activities in January 2010 and is planned for a period<br />

of four years. It is implemented by a consortium led by the<br />

Deutsche Gesellschaft fuer Internationale Zusammenarbeit<br />

(GIZ). The project covers the nine southern Mediterranean<br />

countries: Algeria, Egypt, Israel, Jordan, Lebanon, Morocco,<br />

Occupied Palestinian Territories, Syria, and Tunisia. The project<br />

takes on a holistic approach: Apart from policy advice and business<br />

development, technical assistance is provided to support<br />

building projects, to enhance their energy performance and to<br />

enable them to act as multipliers of climate friendly technologies<br />

and measures. Within this framework all support activities<br />

are based on requests of the projects counterparts.<br />

Key aspect for effective measures is the existence of a supportive<br />

policy framework and a clear national strategy. In November<br />

2010, the Arab Electricity Efficiency Directive has been<br />

adopted by the League of Arab States. States that are interested<br />

in adopting the directive are requested to set an EE target in a<br />

National <strong>Energy</strong> Efficiency Action Plan (NEEAP), according to a<br />

template developed for the region by the Regional Center for<br />

Renewable <strong>Energy</strong> and <strong>Energy</strong> Efficiency (RCREEE) in Cairo,<br />

Egypt and Euro-Mediterranean <strong>Energy</strong> Market Integration<br />

Project (MED EMIP), also a EU funded project.<br />

Source: MED-ENEC, MED-EMIP<br />

<strong>Energy</strong> Efficiency | Construction Sector in the Mediterranean<br />

70 | 71


Following up MED-ENEC supports its partner countries in developing<br />

and adopting their NEEAP. The plan sets out the overall<br />

strategy on energy efficiency, identifies major processes, applications,<br />

sectors, and cross-sectional activities of effective and<br />

highest impact. Most important, it identifies economic and<br />

sustainable solutions and is the first step into an ongoing<br />

improvement. Lebanon was the first country to adopt its own<br />

NEEAP with MED-ENEC, and the NEEAPs for the Occupied Palestine<br />

Territories and Jordan are under preparation at the time of<br />

writing this article (August 2011).<br />

The development of a national energy efficiency strategy<br />

reveals that there are abundant choices with differing levels of<br />

costs and impacts. In order to improve decision-making in the<br />

field of energy savings, MED-ENEC supports Budget Allocation<br />

Charts (BAC) which was developed by MED EMIP. The basic idea<br />

behind a BAC is developed by MED EMIP to visualize in one<br />

chart a country’s option to either expand electrical power generation<br />

capacity based on renewable or fossil fuel energy<br />

resources, or slow down demand through energy efficiency and<br />

energy conservation measures. In other words, the challenge is<br />

balancing demand and supply options in a most cost effective<br />

manner taking into account the potential of each option.<br />

Financing and incentives programmes for EE<br />

Even though energy efficiency measures pay off in the long<br />

run, finding finance is still a challenge in many countries. Yet,<br />

there are many financing options available. In order to provide<br />

a comprehensive overview MED-ENEC established an online<br />

Green Training and Community Centre of the Towns Association<br />

for Environmental Quality in Israel. Source: MED-ENEC<br />

database which identifies all financing instruments currently<br />

relevant for energy efficiency in the building sector and facilitates<br />

access to them for the south-east Mediterranean countries.<br />

Information on the financing organisation, the supported<br />

technologies or measures, the eligible countries, type of financing<br />

and financing range can be found here. Furthermore,<br />

description and links are provided on financing and incentive<br />

instruments.<br />

To support the business community, MED-ENEC also facilitates<br />

the search for business partners in the sector. The businessto-business<br />

portal has more than one hundred registrations of<br />

suppliers and attracts more than 600 visitors per month.<br />

Building <strong>Projects</strong><br />

During MED-ENEC’s phase I pilot projects proved the technical<br />

feasibility of energy saving individual buildings. However, the<br />

financial feasibility was not yet satisfying in many cases and<br />

an important lesson learnt was that there are high transaction<br />

costs for these single projects.<br />

To overcome the economic barriers, the second phase of<br />

MED-ENEC addresses large building projects. New urban developments<br />

provide a wide range of opportunities for improving<br />

EE, from zoning, urban planning, architectural design, construction<br />

and installation technologies many steps can taken<br />

to reduce the energy consumption cost and CO 2 emissions. The<br />

economies of scale provide cost benefit advantages and allow<br />

for new business development in the energy efficiency and<br />

renewable energy sectors.<br />

The large building projects, whether developed by the public or<br />

private sectors, include urban planning aspects, neighbourhood<br />

development (a residential or multi-functional – mixed<br />

commercial – setting), architectural design, construction<br />

detailing, execution and verification of the actual results<br />

through monitoring. The steps are part of the Methodology for<br />

Cost Effective <strong>Energy</strong> Efficiency that MED-ENEC promotes<br />

through out the region.<br />

Methodology for Cost Effective <strong>Energy</strong> Efficiency.<br />

Source: MED-ENEC, Ms. Florentine Visser 2011


Outlook<br />

Currently MED-ENEC’s consortium partner Ecofys is working<br />

with the Jordan Development Zones Company to set the energy<br />

efficiency targets for the Dead Sea Zone Development in Jordan.<br />

These energy targets will be incorporated in the tendering documents<br />

and permitting procedures to investors and developers.<br />

Technical assistance to improve the energy performance of<br />

large building projects in Tunisia and Morocco is in preparation<br />

(August 2011).<br />

Awareness<br />

Awareness raising and capacity building activities are additional<br />

important elements of a policy-mix that aims at developing<br />

the EE/RE market. Especially the large building projects<br />

enjoy a high visibility and can convince the general public and<br />

professionals that energy saving makes sense and provides<br />

economic benefits for the end users.<br />

Furthermore, the experiences of large building projects can<br />

provide feedback for policy development on the remaining<br />

barriers and necessary improvement of framework conditions<br />

for energy efficient building.<br />

For MED-ENEC, an important means of communication is<br />

the webpage (www.med-enec.eu) which not only gives an overview<br />

over the above mentioned initiatives but also provides an<br />

interactive learning section which informs about energy efficiency.<br />

The regional awareness activities are being prepared in close<br />

cooperation with the League of Arab States.<br />

An integrated package of regulation and standards (including<br />

control and enforcement), financial support and incentives,<br />

information, awareness, training, education as well as research<br />

and development activities has improved economic framework<br />

conditions. And this needed to motivate the business development.<br />

With current outlook on increasing energy prices and<br />

reduction of energy subsidies energy efficiency and renewable<br />

energy is an emerging market in the south-east Mediterranean<br />

region.<br />

The holistic approach of MED-ENEC supports the identification<br />

of the most (cost-)effective energy efficiency and renewable<br />

energy measures. And it promotes to feed this in the policy<br />

mix. But there is no such thing as a “best” policy instrument.<br />

Each country needs to work out a comprehensive analysis of<br />

individual framework conditions and barriers and has to<br />

design an adapted policy package, addressing the specific situation<br />

of the country.<br />

MED-ENEC is looking forward to promote success stories of<br />

energy savings from the private sector. Therefore it is collecting<br />

case studies to be published next year, to show decision<br />

makers and the general public that it is feasible and cost efficient<br />

to save energy.<br />

Furthermore upcoming activities are<br />

– energy efficiency building codes (implementation, enforcement<br />

and regional harmonisation),<br />

– financing conference to bring European and Arab financial<br />

institutions together in order to develop appropriate<br />

financing products for EE and RE improved building<br />

projects,<br />

– training workshops for energy audits,<br />

– development of regulation and certification of energy service<br />

companies<br />

– and the technical support to large building projects.<br />

These actions are initiated by MED-ENEC to support market<br />

maturity for energy efficiency and renewable energy, to reduce<br />

the CO 2 emission and to make more efficient use of fossil<br />

energy resources. A better future for all!<br />

Process for cost effective improvement of building energy performance<br />

Source: MED-ENEC, Ms. Florentine Visser 2011<br />

<strong>Energy</strong> Efficiency | Construction Sector in the Mediterranean<br />

72 | 73


1 The structural design of the<br />

Sheikh Zayed Desert Learning Centre<br />

was created by a specific software.<br />

© Bollinger + Grohmann, Frankfurt<br />

Innovation<br />

through Tradition and Technology<br />

Bollinger + Grohmann<br />

Dr.-Ing. Lamia Messari-Becker | Head of Sustainability and Building<br />

Performance and Enrico Santifaller, M. A. | Head of Communications<br />

Integral design as a basis for energy-efficient buildings –<br />

experiences of structural engineers and façade planners<br />

The efficient use of energy and a targeted application of<br />

resources do not always require elaborate and correspondingly<br />

expensive technology. The projects developed for the Arabian<br />

area by the structural engineers and façade planners Bollinger<br />

+ Grohmann, together with renowned architects and experts,<br />

are characterised instead by the well considered engagement<br />

of a whole range of technologies, with great respect for the traditional<br />

knowledge and culture of the region. This association<br />

makes the project innovative, while the synthesis of environmental<br />

technologies, economic responsibility and socio-cultural<br />

empathy makes the buildings sustainable. A prerequisite<br />

for modern buildings that fulfil all of these requirements is<br />

integral design: the cooperation of architects and specialist<br />

engineers at the earliest possible point in the project, as well as<br />

the constant and direct communication of all participants<br />

throughout every project phase. This common approach has<br />

proven to be particularly advantageous in the last few years,<br />

not only from a cost efficiency perspective but also in terms of<br />

meeting deadlines and general quality assurance. Early coordination<br />

on architecture, structure, façade and building services<br />

as well as consideration of sustainable construction requirements<br />

are of great importance with regards to minimising<br />

resources and energy costs during operation.<br />

Fully independently of form, function and dimension, the<br />

main purpose of a building is to establish a pleasant, i. e. userfriendly<br />

climate and even adequate lighting in the interior. An<br />

aspect that initially appears trivial can become the major consumer<br />

of primary energy if climate control and lighting are<br />

purely artificial. If, in contrast, the structure is tailored to the<br />

lighting, for example, the building shell contributes to the<br />

minimisation of heating loads, i. e. if all building parts fulfil<br />

their roles in the sense of a comprehensive energy concept<br />

which takes into consideration complex and entirely diverse<br />

factors, then both the costs and the consumption of primary<br />

energy during operation will be reduced. Additional cost savings<br />

can be achieved by using available knowledge as well as<br />

locally available resources such as water or solar radiation, i. e.<br />

manufacturing or transport resources with low energy consumption.


2 The show rooms of the museum,<br />

who require few daylight,<br />

were situated above ground.<br />

© Bollinger + Grohmann, Frankfurt<br />

Sheikh Zayed Desert Learning Centre, Al Ain,<br />

United Arab Emirates (UAE)<br />

The Sheikh Zayed Desert Learning Centre, which is scheduled<br />

to open in February 2012, will form the central building of the<br />

Al Ain Wildlife Park and is at the same time a spectacular prelude<br />

to a series of planned residential quarters. Combining<br />

museum, cinema and public meeting point in one, this striking<br />

building spirals upwards to a viewing plateau where an<br />

impressive view of the highest mountain peak of the Al Ains<br />

can be enjoyed. The building and energy concept developed by<br />

Chalabi architects and Bollinger + Grohmann focuses primarily<br />

on minimising the requirement for cooling energy to counteract<br />

the extreme solar radiation in the Arab Emirates. One initial<br />

measure was to place various rooms such as the cinema,<br />

visitor areas and lounges underground, whereby these areas<br />

receive their daylight via controllable skylights. On the other<br />

hand, the museum area requires little daylight, therefore it is<br />

located in the above-ground part of the building, the shape of<br />

which resembles a tyre and corresponds to a bridge support in<br />

terms of construction (figure 1). The predominantly closed<br />

building shell was largely designed using three-dimensional<br />

computer models. The few needed openings were then distributed<br />

to correlate with the structural requirements. The diamond<br />

shape construction of these openings allows an optimised<br />

distribution of forces in this area (figure 2). The overall<br />

thickness of the outside walls is 60 cm – 15 cm of which is thermal<br />

insulation; this results in optimum conditions in terms of<br />

construction physics.<br />

Further measures address the ventilation: with the help of<br />

tubes dug in the ground, the fresh air supply is pre-cooled without<br />

the use of energy before reaching the ventilation control<br />

centre. Solar power for hot water preparation is generated outside<br />

the property due to solar collectors. A photovoltaic system<br />

for the production of electricity using solar power is located on<br />

the roof. The energy-efficient activation of ceilings and walls,<br />

in which water-filled pipes are installed, facilitates temperature<br />

regulation and thus, ensures comfort within the building.<br />

Adiabatic systems, i. e. evaporative cooling towers, vacuum toilets,<br />

waterless urinals and special fittings are employed to<br />

reduce the water consumption. All the measures employed will<br />

be enough to have the building certified for “LEED Platinum”<br />

and the local “Estidama Five Pearls” equivalent.<br />

King Fahad National Library,<br />

Riyadh, Saudi Arabia<br />

The soon to be completed King Fahad National Library in the<br />

Saudi capital Riyadh consists principally of an extension to an<br />

existing library, crowned with a dome. This library will serve as<br />

a book repository in the future, whilst a transparent, squareshaped<br />

new-build will accommodate reading rooms, openaccess<br />

areas, exhibition areas, restaurants, and an imposing<br />

entrance. The cross-shaped original building from the 1980s<br />

will be refurbished in line with conservation practice and integrated<br />

into the new building; the old reinforced concrete dome<br />

will be replaced by an open reading area under a new, very<br />

finely structured steel-glass dome (figure 3). The design was<br />

jointly developed by Gerber architects, Bollinger + Grohmann<br />

and DS-Plan and combines respect for regional tradition with<br />

state of the art technology.<br />

This is symbolically evident in the building shell: it consists<br />

of a textile façade enveloping a glass skin and is modelled on<br />

<strong>Energy</strong> Efficiency | Innovation through Tradition and Technology<br />

74 | 75


Competition – Place Lalla Yeddouna,<br />

Medina, Fès, Morocco<br />

the tensile-loaded tent constructions of the region and the traditional<br />

use of wall screens. The diamond-shaped textile membranes,<br />

which are tensioned in three dimensions by steel<br />

cables, serve as fixed sun screens (figure 4). Yet they permit<br />

maximum lighting and transparency. This was possible with<br />

the aid of a slender construction of a total of 400 galvanised<br />

steel cables arranged over two levels. This computer-developed<br />

design avoids penetrating solar radiation and the associated<br />

heat loads on the one hand, whilst on the other it enables a<br />

guaranteed open view from all office spaces and reading rooms.<br />

The potential risk of deformations due to horizontal movement<br />

of the façade caused by wind was considered in the structural<br />

design. The combination of structure design and façade<br />

planning from a single source led to an optimised and energyefficient<br />

result. A further constituent of the energy concept is<br />

the extraordinarily efficient layered ventilation, which is based<br />

on the idea of utilising thermal air streams: cool air is fed into<br />

the ground floor, and once it is warmed it makes its way<br />

upwards and escapes through the roof. The lounge areas<br />

located at the bottom have a constantly pleasant climate as a<br />

result of this. The fact that it was possible to integrate an existing<br />

building into the national library further reduced the use<br />

of resources during the creation of the building.<br />

The revitalisation of one of the quarters of the Moroccan old<br />

town of Fès – Place Lalla Yeddouna – was the subject of an international<br />

competition in 2010. The proposal developed by Kolb<br />

Hader Architekten and Bollinger + Grohmann provided primarily<br />

for the preservation and the refurbishment of important<br />

buildings in this neighbourhood. Secondly, a two-floor multifunctional<br />

new-build was intended to link not only these buildings<br />

but also to form a bridge over the river Fès and thus, create<br />

a connection with the neighbouring quarter (figure 5). The proposal<br />

reached the competition final and took into account the<br />

construction methods in the Medina and also integrated<br />

regional know-how in the field of climate control.<br />

The climate control and energy concept rested on two intentions:<br />

to reduce the heat input through solar radiation and<br />

thus, the cooling energy demand, and to cover the remaining<br />

energy requirements by means of available resources and natural<br />

effects. A multifunctional building shell was intended not<br />

only to address the load bearing function but also to assume<br />

climate control. This wall was to capture the solar heat power<br />

and minimise it with the help of groundwater introduced into<br />

the wall as cooling. So-called water-walls were integrated on<br />

the north side, where water flows along the entire length of the<br />

walls. The water evaporates and in doing so removes heat from<br />

4 Detail of the textile facade:<br />

the diamond-shaped textile membranes serve as fixed sun screens.<br />

© Gerber Architekten International, Dortmund


Conclusion<br />

the ambient air. The cooler air is then conducted into the<br />

rooms by means of quiet booster fans, which exploit the natural<br />

air flow. A double-shelled roof, which likewise utilizes the<br />

natural air flow and generates hot water, the use of clay bricks<br />

on the internal side of the walls as a natural moisture regulator,<br />

as well as the use of sheep’s wool as a natural material for the<br />

10 cm thick insulation are further constituents of the climate<br />

control concept. In a bazaar quarter, which is in operation 24<br />

hours a day and which has hardly heard of any transport<br />

method other than camels, it was also important to develop a<br />

method of construction that would be suitable for the local<br />

conditions. Ceiling elements were therefore proposed which<br />

are manufactured and installed on-site in segments. The use of<br />

regional materials and Moroccan trades was intended to create<br />

jobs and involve local people. Thus, the overall concept took<br />

social responsibility into account as well.<br />

Building design that targets resource savings is the total sum<br />

of a whole series of tailored measures to complement one<br />

another – as is apparent from the projects described. This sum<br />

cannot be equated with a checklist where all items simply have<br />

to be ticked off. On the contrary, depending on location, on<br />

region, on the local knowledge and resources available, various<br />

measures have to be taken in order to produce an energy-effective<br />

building. The application of technology is a component of<br />

these measures, although planning in a team that respects tradition<br />

but at the same time goes beyond traditional limits is<br />

more important, as this is what leads to innovation.<br />

5 The proposal for the Medina of Fés connects neighbouring quarters.<br />

© Kolb Hader Architekten, Vienna/Berlin<br />

3 The textile façade of the new National Library<br />

is a reminiscent to the traditional use of wall screens.<br />

© Gerber Architekten International, Dortmund<br />

<strong>Energy</strong> Efficiency | Innovation through Tradition and Technology<br />

76 | 77


Hardening car with reinforcement<br />

Autoclaves for optimised curing<br />

Block shifting device for reinforced panels<br />

<strong>Energy</strong> Efficiency<br />

with AAC Building Materials<br />

Masa GmbH<br />

Peter Sommer | Marketing Director<br />

Environmental friendly production, energy efficiency, high thermal insulation, easy workability,<br />

easy handling and transportation – advantages that speak for themselves and make Aerated<br />

Autoclaved Concrete (AAC) products more and more demanded worldwide. Masa provides all<br />

machinery and equipment to produce those products.<br />

AAC technology advantages and<br />

the Middle East market<br />

AAC has been produced for more than 70 years. Due to the fact<br />

that it offers considerable advantages over other construction<br />

materials, such as an excellent thermal efficiency, it gives a<br />

high contribution to environmental protection to reduce<br />

energy for heating and cooling. This is one of the reasons why<br />

it also became one of the major building materials in “hot<br />

countries” like the Middle East area.<br />

AAC products include blocks, wall panels, floor and roof panels<br />

as well as lintels. It is a lightweight building material which<br />

provides structures, insolation and fire protection. The products<br />

are used for internal and external construction and apply<br />

as building material in commercial, industrial and private sectors.<br />

The following main advantages can be listed:<br />

AAC’s excellent thermal efficiency makes a major contribution<br />

to environmental protection by sharply reducing the need for<br />

heating and cooling in buildings. There is no need for additional<br />

isolation of buildings. The thermal isolation is extremely high<br />

compared to clay bricks or concrete blocks (0,08 – 0,27 W/(mK)).<br />

AAC supports the builder on site to set up buildings faster and<br />

easier, because of very accurate and light blocks. In using larger<br />

formats, walls have less joints per m² of wall compared to concrete<br />

block or clay walls. It is easy to cut blocks which minimizes<br />

the solid waste during installation.<br />

Even though regular cement mortar can be used, 98 % of the<br />

buildings erected with AAC materials use thin bed mortar,<br />

which comes to deployment in a thickness of ⅛ inch.<br />

AAC material can be coated with a stucco compound or plaster<br />

against the elements.<br />

AAC’s high resource efficiency (1 m³ of raw materials gives<br />

approximately 5 m³ of building products) gives it low environmental<br />

impact in all phases of its life cycle, from processing of<br />

raw materials to the disposal of AAC waste. This process related<br />

waste material can be recycled back into the system.<br />

AAC’s light weight also saves energy in transportation. The<br />

fact that AAC is up to five times lighter than concrete leads to<br />

significant reductions in CO 2 emissions during transportation.


Modern factory building made with AAC wall panels<br />

Source: BV-Porenbeton/Info CD 05-2002<br />

An AAC factory<br />

built by Masa at Bena, Abu Dhabi<br />

In addition, many AAC manufacturers apply the principle of<br />

producing as near as possible to their consumer markets to<br />

reduce the need for transportation.<br />

Due to the low density and the resulting low weight, foundations<br />

can be smaller or buildings can be higher with the<br />

same size of foundation. Also the supporting structure of the<br />

buildings can be slighter.<br />

AAC is a “breathing material”, and therefore, the room climate<br />

can be easily controlled which improves the standard of<br />

living. A good sound insulation makes the material interesting<br />

for multi-storey buildings where different parties live in.<br />

Only natural ingredients are used, namely sand, lime, water,<br />

and cement – ingredients are non-toxic.<br />

Bena – German Emarati Company – was one of the first suppliers<br />

of aerated concrete elements in the Middle East Area. The<br />

facility is highly automated and therefore, able to produce<br />

high quality products. Furthermore, Bena aims to offer complete<br />

services and thus, supports its customers in becoming<br />

familiar with aerated concrete building elements. The daily<br />

capacity of the works is around 1,200 m³ of precast aerated<br />

concrete blocks. Reinforced wall and floor slabs can also be<br />

manufactured with the commissioned plant. The new product<br />

was very important for Bena because it brought a significant<br />

ecological, economic, and efficiency benefit to builders and to<br />

Bena customers.<br />

<strong>Energy</strong> Efficiency | AAC Building Materials<br />

78 | 79


Process technology Vario Block<br />

The Vario Block line uses silicate sand, lime, cement, aluminium<br />

powder or paste, water and, if necessary, gypsum as raw materials<br />

to produce aerated blocks. The binding components cement,<br />

lime, and gypsum are stored outside the factory in silos close to<br />

the mixing tower. The size is depending on the required quantity.<br />

To have a consistent product quality the mixing process is<br />

completely controlled via a fully automatic dosing and mixing<br />

control. All process parameters (e. g. temperature, density of the<br />

aggregates, or chemical features) can be adjusted.<br />

The mixer including all necessary dosing and weighing<br />

equipment is installed above the casting plant. All relevant<br />

plant functions concerning raw materials as well as the product-specific<br />

parameter are recorded and controlled in the central<br />

control room. A large-scale flow chart allows an immediate<br />

control for the operator. Signal lamps indicate the current data.<br />

All product data, raw material situations, and recipe quantities<br />

are recorded via the PC system with an attached printer. Interfaces<br />

to a central data transfer system are available.<br />

The raw materials – sand from the ball mill, return slurry,<br />

fine lime, cement, gypsum, and recycled material together with<br />

temperature-controlled water – are prepared for the casting<br />

process in a special mixer. With the aluminium dispersion<br />

added, the mixture is fed into the casting mould below through<br />

specially arranged casting devices. Below the casting tower,<br />

there is enough space for one casting moulds that can be filled.<br />

All casting moulds are stored in a special casting area (gas<br />

developing area). This area is designed (in size and volume) to<br />

reach an optimum casting temperature.<br />

After the gas-developing process of the block compound is<br />

finished, the mould turning crane takes over the mould, turns<br />

it by 90°, and positions it onto the beginning of the cutting line<br />

Large wall elements for outside and inside walls<br />

Source: BV-Porenbeton/Info CD 05-2002<br />

with the side plate as carrier plate. The mould locking is opened<br />

and the mould body is taken off the side plate and the block<br />

compound. The empty mould body is transported to the side<br />

plate return line and put together with an empty side plate to<br />

form a complete casting mould again.<br />

The block compound is transported vibration-free through<br />

different cutting stations (horizontal and vertical cutting as<br />

well as grip hole cutting) to form different sizes of aerated concrete<br />

blocks. All cutting waste is returned into the process in an<br />

economic way.<br />

From the cutting stations the “green cake” is transported to<br />

the loading/unloading station for the autoclaving process. For<br />

a better utilization of the autoclaves, three blocks are put on a<br />

hardening car side by side and brought to the waiting area in<br />

front of the autoclaves. The complete hardening cycle for<br />

block-production takes approximately 13 hours. The hardening<br />

cycle for reinforcement production is calculated with 18 hours.<br />

When the autoclaving process is completed, the blocks are<br />

taken out, are separated and then transported to a packing<br />

plant. In the packing plant the required cube sizes are created,<br />

cubes are stacked, stretch wrapped and brought to a yard.<br />

Reinforcement plant<br />

As a special application AAC blocks can also be produced with<br />

reinforcements. In this case large reinforcement elements are<br />

manufactured.<br />

The plant can be used for reinforcement blocks that only<br />

have to bare the stresses during transport and assembly, or special<br />

manufactured reinforcement panels to take higher static<br />

loads in buildings (wall or roof). The calculation of the required<br />

reinforcement is individually adapted to the actual use.<br />

The reinforcements have to be protected against rust<br />

because aerated concrete does not give sufficient rust protection<br />

and the high porousness does not prevent the absorption<br />

of humidity. The concept comprises a dip tank to apply the corrosion<br />

protection to the reinforcement element.<br />

In the following process, the reinforcements are mounted<br />

on an adjustable frame system, so that they can be positioned<br />

precisely in each mould. The positioning into the mould is<br />

done after the filling of the mould with the slurry coming from<br />

the mixing plant.<br />

There is an increasing demand for AAC building materials<br />

worldwide. Masa as one of the leading suppliers is supporting<br />

many companies with equipment and technology for the production<br />

of standard AAC blocks on the one side and on the<br />

other side reinforced products. Reinforced products are used in<br />

special applications with higher static loads.


The suspended “cradle” used for the ETICS installation<br />

Meeting the Challenges<br />

of Thermal Insulation at the SOFITEL Hotel,<br />

Jumeirah Beach Residence, Dubai<br />

Caparol LLC<br />

Ahmed El Bayaa | Regional Sales Manager<br />

When commissioning the building of the new Sofitel Hotel in Dubai, the Sofitel Luxury Hotels<br />

Group was faced with building regulations requiring all new buildings to meet certain thermal<br />

insulation standards in line with the drive to reduce carbon emissions and conserve energy. At the<br />

same time the building had to meet the client’s and architect’s design vision and portray Sofitel’s<br />

brand values. Pioneering building practices were introduced to meet new local regulations, and<br />

the result was a successful ETICS installation that both met and set new standards.<br />

Legislation was introduced in Dubai in 2006 that made the<br />

inclusion of thermal insulation in new buildings mandatory.<br />

Design and construction standards and practices in Dubai are<br />

high profile so adopting international practices is an important<br />

consideration for such legislation to be implemented. For<br />

a city growing as fast as Dubai, reducing the demand for electricity<br />

is a critical long term success factor. Since it is unlikely<br />

there will be any reduction in demand, the construction of<br />

additional new generation capacity becomes a necessity and<br />

hence, the Dubai authorities have felt it necessary to introduce<br />

the practice of mandatory thermal insulation to balance this<br />

demand.<br />

Introducing thermal insulation regulations in a desert climate<br />

could seem incongruous, but it becomes obvious if one considers<br />

the huge differences between outdoor and indoor temperatures.<br />

Since air conditioning is standard for most modern<br />

buildings and outdoor temperatures can go up to 50 °C in summer,<br />

(the temperature differential can be up to 30 °C), there is<br />

huge energy saving potential from thermally insulating the<br />

building shell. This will then maintain the internal temperature<br />

and stop air transfer through the building walls. Thermal<br />

insulation is standard in countries with a cold European climate<br />

and interestingly the energy saving potential provided<br />

by thermal insulation in a hot climate is up to four times<br />

higher than it is in a cold climate.<br />

<strong>Energy</strong> Efficiency | Meeting the Challenges of Thermal Insulation<br />

80 | 81


Optimising the building shell by installing an External Thermal<br />

Insulation Composite System (ETICS) ensures the walls and<br />

rooms are protected from heating up and therefore, the temperature<br />

difference between indoor air and wall surfaces is<br />

reduced. Temperature changes or direct sunlight on the outside<br />

wall surface will have nearly no effect on the interior walls<br />

of a properly insulated building and as well as the energy saving<br />

potential, the comfort level for occupants is significantly<br />

increased.<br />

The consultant NORR, responsible for the Sofitel construction,<br />

was looking for a thermal insulation solution that ensured<br />

the most efficient thermal properties, yet at the same time<br />

could be applied to the fabric of the existing planned structure.<br />

One of the biggest challenges facing NORR was to install a system<br />

that was not only able to fulfill the technical insulation<br />

requirements, but also meet the demands of a high rise building<br />

and the architectural design. NORR was also looking for a<br />

system supplier that could bring a wealth of experience to the<br />

installation, in-depth product knowledge and specification<br />

expertise. It was also important that the supplier could offer<br />

project management of the ETICS solution and provide experienced<br />

installation teams on site.<br />

Caparol was able to provide NORR with the confidence of its<br />

ability to deliver on all accounts given its extensive proven<br />

experience with ETICS both in Germany, Europe, and in projects<br />

around the world. That confidence was supported by the quality<br />

of both the Caparol design team and the technical advances<br />

in the specified system. At the same time their international<br />

experience was matched with local knowledge ensuring the<br />

correct products and services were available when required,<br />

enabling this demanding and ground-breaking ETICS project<br />

to be progressed in the Middle East.<br />

The Caparol ETICS installation integrates perfectly with the architectural<br />

design of the building<br />

The Sofitel Hotel at the Jumeirah Beach Residence provided its<br />

own specific challenges which the team was able to meet, drawing<br />

on the experience both of the experts based in Germany<br />

and local knowledge in the provision of invaluable understanding<br />

of the inherent conditions.<br />

This was the largest commercial ETICS project to be undertaken<br />

by Caparol in Dubai. Although they had the experience<br />

of such installations under European conditions, the challenges<br />

of this project required them to push the boundaries of<br />

their knowledge and pioneer this type of project, which has<br />

now become standard in the Middle East. The project also had<br />

to meet the standards being applied by Dubai Central Laboratories’<br />

(DCL).<br />

This new knowledge and understanding resulted in product<br />

modifications being made at a very early stage that has since<br />

assisted the establishment of standards in Dubai.<br />

A key difference between European and United Arab Emirates<br />

(U.A.E) conditions is that a water vapour barrier is a more<br />

critical requirement in the U.A.E. A number of modifications<br />

were required before DCL standards could be achieved and the<br />

system was ready to be approved and applied. Due to the close<br />

cooperation of the team on site – the DCL teams and the<br />

research and development laboratories at Caparol headquarters<br />

in Germany – effective system modifications were implemented.<br />

DCL was then able to confirm that their stringent<br />

standards would be met with the proposed system.<br />

Another technical development implemented for this<br />

project was the improvement in the organic reinforcement<br />

material, enabling quick and easy application under the hot<br />

and humid U.A.E. weather conditions. This resulted in using a<br />

reinforcing material that gives a more consistent, more flexible<br />

system which avoids cracks and could ensure long-term durability<br />

for this prestigious project.<br />

An additional factor to take into account was the location of<br />

the hotel on the beach front, which meant it is subject to<br />

slightly higher coastal wind conditions. The expectation of<br />

stronger winds at this location required careful consideration<br />

as the higher wind strength significantly increases the load on<br />

the mounted insulation boards.<br />

Furthermore the hotel (at 143 m) was extremely high for an<br />

ETICS application, with the height factor exacerbating the suction<br />

that the wind creates on the mounted insulation panels.<br />

The height of the building and the coastal location and<br />

therefore the increased wind suction meant that the system<br />

had to include an appropriate mechanical fixing in the specification.<br />

The mechanical fixing specified meant that dowels were<br />

fixed at 4 dowels.m –2 at ground level and at a much higher 16<br />

dowels.m –2 at higher levels.


The height of the building tested the capabilities of the construction<br />

team appointed to install the ETICS, not only in the<br />

method of fixing the panels to the exterior of the building but<br />

also by the fact that scaffolding could not be erected, due to the<br />

building’s height. The ETICS application therefore, was completed<br />

using suspended “cradles” only.<br />

Another important factor in the successful completion of<br />

the project was the thorough integration of the experienced<br />

German teams in providing input both in terms of product<br />

modifications to meet local considerations as well as their practical<br />

assistance on application. Training was organised for the<br />

installation team of Emirates Coats and the local Caparol Technical<br />

team at Caparol’s head office in Ober-Ramstadt in Germany<br />

to ensure a better understanding of the practical issues<br />

that might arise on such a challenging project .<br />

Work commenced in 2006 and was completed in January<br />

2009.<br />

The final DCL-approved system:<br />

Due to the height of the building, the ETICS application was completed<br />

using suspended “cradles”.<br />

– Standard Adhesive<br />

– EPS insulation panels of 6 cm with reinforced fixing with<br />

dowels at between 4 – 16 dowels.m –2<br />

– Reinforcement with a standard mesh and an organic reinforcing<br />

material certified by DCL to pass water vapour barrier<br />

standards<br />

– Finished with trowel applied Caparol StructurePutz, a material<br />

that satisfied the aesthetics of the overall design but<br />

also provided durability and impact resistance.<br />

And the beauty of ETICS as a thermal insulation solution is that<br />

it is ideally suited to retrofit too. As efficient as it is for thermally<br />

insulating new work, it is also the most cost efficient and<br />

most versatile method to retrofit existing buildings to meet<br />

the current standards for energy saving. So whether it is new<br />

work or refurbishment, ETICS helps buildings to become more<br />

energy efficient.<br />

The Sofitel Hotel project has clearly shown how ETICS can be<br />

specified for a prestigious project requiring a sophisticated<br />

architectural finish without compromising the original design<br />

brief. The system has ensured not only an outstanding and<br />

striking building facade but a durable and sustainable solution<br />

too.<br />

In combining technology and architectural design, ETICS<br />

offers an integrated product solution providing the right finish<br />

and look for any project, ensuring both an attractive and<br />

energy saving building which fulfills the designers and occupiers<br />

needs and expectations.<br />

Saving energy and enhancing customer comfort<br />

with a unique ETICS installation at the 143 m high Sofitel Hotel<br />

at the Jumeirah Beach Residence in Dubai.<br />

<strong>Energy</strong> Efficiency | Meeting the Challenges of Thermal Insulation<br />

82 | 83


<strong>Energy</strong> Efficiency and<br />

Climate Change Mitigation:<br />

Triple Win for the<br />

Water Authority of Jordan<br />

Water Pumping Station (Picture courtesy of WILO SE)<br />

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ)<br />

Dieter Rothenberger | Head of IEE Programme<br />

Project background and approach<br />

The Water Authority of Jordan (WAJ) is the largest electricity consumer in the country,<br />

using about 15 % of Jordan’s entire electricity production. In addition to high costs, this leads to<br />

high emissions of greenhouse gases, since Jordan’s power supply is almost exclusively<br />

based on fossil fuels. The hydraulic conditions imply that the fresh water needs to be lifted<br />

1,400 m from the Jordan Valley to reach the consumers in the cities. Under these circumstances,<br />

one of the main causes for the high levels of electricity consumption is the huge technical<br />

inefficiency in the operation of the water pumps, which includes inappropriately sized and<br />

operated pumps and deficiencies in O & M processes.<br />

In 2008, the German Federal Ministry for Environment, Nature<br />

Protection and Nuclear Safety (BMU) started the International<br />

Climate Initiative (ICI) to support approaches aiming to reduce<br />

greenhouse gas emissions. The project “Improvement of<br />

Ener gy Efficiency of WAJ in the Middle Governorates” (IEE) was<br />

the first project worldwide approved by BMU within the ICI and<br />

is being implemented by the Deutsche Gesellschaft fuer Internationale<br />

Zusammenarbeit (GIZ). The project was originally<br />

planned for 2.5 years, but has been extended by another 2 years<br />

for a country-wide roll-out.<br />

The IEE is structured in two parts: In part 1, an energy audit was<br />

conducted for the major consumers of electricity of WAJ in the<br />

three governorates of Balqa, Madaba, and Zarqa. This energy<br />

audit consisted of pump performance measurement, and electro-mechanical<br />

investigations. To this end, water flow, pressure<br />

and electricity consumption was measured, as was the system’s<br />

performance. Based on the derived factual efficiency, the<br />

energy saving potential was calculated, assuming the use of<br />

improved technology and better operations, and the required<br />

investments were estimated.


Based on the audit, technical measures to reduce the consumption<br />

were developed. In addition, institutional concepts and<br />

respective contracts were drafted in order to support the sustainable<br />

implementation of the measures, e. g. via direct procurement<br />

with maintenance contracts, Micro BOT, or energy<br />

contracting models – all models involve the private sector to a<br />

certain extent.<br />

During the current part 2 of the IEE project, the measures<br />

and methods derived in part 1 are implemented. The focus is to<br />

use private sector operational expertise and private finance as<br />

far as possible, e. g. for rehabilitating and operating pumping<br />

stations to achieve sustainable improvements. This means that<br />

beside direct procurement and improved operation of pumps,<br />

the investments in and the operation of pumping stations<br />

might be outsourced by WAJ to the private sector for some<br />

years. In addition, investments for some stations are foreseen<br />

from within the IEE.<br />

<strong>Energy</strong> audit results<br />

Electricity accounts for 25 – 35 % of WAJ’s operational costs,<br />

which results in almost JOD 70 millions annual electricity costs<br />

and thereby shows the financial implications of efficiency<br />

improvements.<br />

Table 1: Results of the energy audit<br />

Pumping station Saving potential Payback period Reduction of CO 2<br />

in % in JOD/a in years in t/a<br />

Zarqa<br />

Desalination Plant<br />

65 18,000 10 298<br />

Hallabat 19 32,000 11 539<br />

Azraq 18 152,000 13 2,344<br />

Khaw (old station) 38 302,000 4 5,103<br />

Yazedieh 17 40,000 22 684<br />

Azraq Spring 27 18,000 9 306<br />

Share’a 35 103,000 8 1,747<br />

Naqab Al Daboor 10 10,000 2 168<br />

Madaba 95 178,000 23 3,007<br />

Wala 4 22,000 6 379<br />

Lib 13 70,000 2 1,172<br />

Grand Totals 935,000 15,579<br />

The energy audits revealed an estimated electricity saving<br />

potential of approx. 25 % of the electricity consumed in the<br />

analysed pumping stations. Main reasons for the low efficiency<br />

were the use of wrongly designed and low-cost equipment,<br />

mainly since cost optimisation was focusing on lowest procurement<br />

costs instead of lowest life-cycle costs (LCC). An LCC<br />

approach for pumping equipment would favour procurement<br />

of higher quality equipment, since over the whole life cycle,<br />

operation (including electricity), maintenance and repair costs<br />

account for more than 90 % of the total costs, while procurement<br />

cost is only approx. 10 %.<br />

Due to the limited water resources available in Jordan, the<br />

operations’ focus is to maximize the water pumped, not to get<br />

the lowest cost for pumping. Because of a lack of automation<br />

and regular maintenance, this results in too high electricity<br />

consumption and hence, operational costs and frequent pump<br />

changes. Finally, in the whole process starting from pump<br />

design/selection to operations, maintenance and repair, a large<br />

number of divisions and actors are involved, which is hampering<br />

the overall optimisation process.<br />

The energy audit of the IEE project identified a cost reduction<br />

potential for WAJ by almost JOD 1 million per year, and a<br />

CO 2 emission reduction by 16,000 tons. Table 1 shows the<br />

results for the selected pumping stations.<br />

The saving potential could partially be reaped by installing<br />

new, more efficient pumps and equipment. But in order to have<br />

a sustainable improvement, as mentioned above, a focus on<br />

LCC for the procurement as well as a change in the organisational<br />

processes is required. GIZ promotes a comprehensive<br />

optimisation process, which is introduced to support WAJ in<br />

the full cycle of pumping station operations within so-called<br />

“<strong>Energy</strong> Service Performance Contracting” (ESPC) models. ESPC<br />

stands for a contract between an <strong>Energy</strong> Service Company<br />

(ESCo) and WAJ aiming at the reduction of energy costs for<br />

water pumping. The ESCo provides the funding for the repair<br />

and replacement of the pumping equipment, designs and<br />

installs the equipment, and takes over operation, maintenance<br />

and repair processes for a defined period (see also figure 1). The<br />

remuneration of the ESCo for its services depends on the reduction<br />

of specific energy consumption (kWh/m3 pumped) during<br />

the contract period, as the cost savings are shared between WAJ<br />

and the ESCo, which creates strong incentives for the ESCo to<br />

deliver the predicted energy savings.<br />

The pilot project –<br />

a cooperation between GIZ, WILO, and WAJ<br />

The implementation of the measures via ESPCs increases the<br />

energy efficiency and reduces operating costs with no up-front<br />

cost and limited risk for the facility owner. ESPC is known<br />

widely in Europe, less so in the Middle East and even less in the<br />

Middle East water sector. Since pumping stations are a key element<br />

in Jordan’s technical water supply infrastructure and<br />

vital for the provision of reliable services, there are obviously<br />

also psychological and other barriers to overcome, and there<br />

are decision-makers to convince.<br />

<strong>Energy</strong> Efficiency | Climate Change Mitigation<br />

84 | 85


Water Pump (Picture courtesy of WILO SE)<br />

Therefore, it was important to establish a test case to demonstrate<br />

how an energy contracting model for a pumping station<br />

in Jordan could be implemented. It was expected that such a<br />

test case should minimize the risk for WAJ and the private sector,<br />

hence, this pilot project is a Public Private Partnership<br />

approach jointly financed by GIZ and a German pump producer,<br />

WILO (as the ESCo). In order to achieve the targeted performance<br />

improvements, the ESCo has been given the authority<br />

and responsibility to implement the necessary changes.<br />

Under the agreement WILO is required to develop an energy<br />

saving concept considering all aspects of importance from<br />

technology to pumping station operations including specifications<br />

for the required pumps and other equipment like automation<br />

devices for remote control, training for the seconded<br />

staff. This pilot project is running since November 2009 in a<br />

pumping station which was not part of the audit, since the data<br />

was already available. The installation of the new, highly efficient<br />

WILO pumps took place in March 2010, and the results of<br />

the improved technology linked with better operations are<br />

impressive: Taking into consideration the additional water<br />

pumped with the more efficient and effective new pumps, the<br />

annual savings equal approx. JOD 110,000. CO 2 emissions have<br />

been reduced by 1,400 t/a.<br />

Design,<br />

Planning<br />

Installation<br />

Figure 1<br />

Concept of an ESPC contract<br />

Project Identification,<br />

Legal Framework<br />

ESPC<br />

<strong>Energy</strong> Saving<br />

Measures<br />

Operation and<br />

Maintenance<br />

Financing<br />

Contolling


Ceremony for project hand-over (Picture courtesy of WILO SE)<br />

Conclusion<br />

Based on these very encouraging results, WAJ is highly interested<br />

to repeat the success story of the pilot project with a<br />

proper ESPC, and hence, is currently floating a tender for an<br />

ESPC for the Khaw pumping station. As table 1 shows, this<br />

pumping station has a considerable saving potential both in<br />

terms of WAJ energy costs as well as CO 2 emissions.<br />

For other pumping stations, the required investments are<br />

relatively high compared with the potential savings, so that<br />

fully private investment would mean a very high risk exposure<br />

with long-pay-back periods. Therefore, some investments are<br />

done from within the IEE project budget. For the pumping station<br />

at the Zarqa Desalination Plant, the installation of new<br />

pumps and the introduction of automation resulted in a reduction<br />

in energy consumption of more than 60 %, equalling<br />

annual savings of approx. JOD 17,000 and a CO 2 emission reduction<br />

of approx. 300 t/a.<br />

In addition, the IEE project has developed the institutional<br />

concepts and creates a flexible, incentives-based ESPC-framework<br />

for the implementation of ESPC projects in Jordan, with<br />

classic ESPCs, contracting concepts focusing mainly on operation<br />

services, or practically fully ODA financed measures in<br />

pumping stations with a private sector service element improving<br />

mainly the sustainability of the ODA investment.<br />

The IEE project combines demand-side energy improvements<br />

with an institutional innovation in the Jordanian water sector.<br />

The implementation of measures is based on the ESPC model,<br />

by which a triple win situation is created: firstly cost savings to<br />

be shared between WAJ and the private sector, secondly the<br />

availability of new infrastructure at no cost for WAJ, and thirdly<br />

a reduction in greenhouse gas emissions.<br />

The results from the implementation of measures at a pilot<br />

pumping station confirm an increase in average energy efficiency<br />

of more than 35 %, which translates into a cost recovery<br />

improvement of approx. JOD 110.000 per year, very low maintenance<br />

efforts for the enhanced equipment, and an overall<br />

reduction of pumping station downtime.<br />

Improved cost recovery through energy efficiency is a key<br />

issue for the WAJ. ESPC is seen as a promising way since there<br />

are no up-front cost and limited risks for WAJ. Within the innovative<br />

IEE project, the feasibility to combine private investments<br />

and operations has been proven.<br />

The IEE project is one cornerstone for the process of the Jordanian<br />

economy to become more energy efficient and reduce<br />

the burden on the already over-stretched electricity production<br />

sector. This project, which has a beacon effect far beyond<br />

Jordan, shows that taking care for the environment can also<br />

have economic advantages – and is an example for a sustainable<br />

solution the German Government supports in all its cooperation<br />

activities with Jordan.<br />

<strong>Energy</strong> Efficiency | Climate Change Mitigation<br />

86 | 87


Water,<br />

Desalination and Irrigation<br />

Because of their arid climate, Arab states and in particular the Arab Gulf states<br />

are in need for powerful water desalination plants that increase the energy<br />

demand in these countries significantly. The production of fresh water and the<br />

recycling of waste water require strong distribution and transmission networks.<br />

These have to keep pace with increasing demand caused by growing<br />

populations and extending cities. New technologies such as solar desalination<br />

are economically and ecologically promising. <strong>Projects</strong> of reference that include<br />

the participation of Arab and German companies or institutions have been<br />

planned or implemented in most Arab countries. With the demographic growth<br />

and industrial diversifications in Arab countries, the demand for desalinated<br />

water and the necessity to recycle waste water will further increase.<br />

The Arab-German cooperation in this field ranges from dam extensions in<br />

Sudan to solar desalination and projects in Jordan and Egypt.<br />

Water, Desalination and Irrigation<br />

88 | 89


Naga Hammadi Barrage<br />

The Naga Hammadi Barrage on the River Nile<br />

Lahmeyer International<br />

Werner Bürkler | Chief Resident Engineer and Project Manager<br />

for Construction Supervision, Bernd-R. Hein | Senior Geotechnical and<br />

Dam Expert, Bernd Metzger | Business Development Director<br />

Between June 2002 and May 2008, a new barrage across the river Nile was constructed,<br />

135 km north of Luxor, Egypt. The 336 m long structure includes a sluiceway with seven weir bays,<br />

two navigation locks, a power plant, and a bridge over the barrage. The complete diversion<br />

of the Nile river, the construction pit in the river bed as well as the structures themselves required<br />

large-scale and adopted technical solutions. Before and during the construction period the<br />

project was followed by an extensive environmental and social action programme.<br />

An important project<br />

for the population and environment<br />

The clients for the project were the Ministry of Water Resources<br />

and Irrigation and the Ministry of Electricity and <strong>Energy</strong> of the<br />

Arab Republic of Egypt. The funding of the project was secured<br />

by credits of Kreditanstalt für Wiederaufbau (KfW), the European<br />

Investment Bank (EIB), and through the national budget<br />

of Egypt.<br />

The consultant was a consortium of international consultancy<br />

companies under the leadership of Lahmeyer International,<br />

Germany. The consultant elaborated the feasibility<br />

study, the tender design, assisted in the award of the contracts<br />

(five lots) and performed site supervision services.<br />

The two years post-commissioning period of the project<br />

started in June 2008 and came to an end by May 2010. The following<br />

report demonstrates the development process of this<br />

project, which took more than 10 years and concludes one year<br />

after the post-commissioning period.<br />

The Naga Hammadi Barrage (NHB), referred to in the report as<br />

the “Barrage”, was constructed on the river Nile from 1927 – 1930.<br />

It is located some 12 km north of the town of Naga Hammadi.<br />

The location of the Barrage, generally expressed as a river distance<br />

in kilometres downstream from the Aswan Dam, is at km<br />

359.50.<br />

The Barrage is one of three structures on the river Nile in<br />

Upper Egypt (excluding the Aswan and High Aswan Dams),<br />

which control the water levels for some distance upstream. The<br />

others include Esna Barrage located to the south at km 166.65<br />

and Assiut Barrage to the north at km 544.75. The river reaches<br />

between Esna and Naga Hammadi and Assiut Barrages are<br />

192.85 km and 185.25 km, respectively.<br />

The primary purpose of the Naga Hammadi Barrage, as also<br />

for the other two barrages, was to expand the cultivated area in<br />

Upper Egypt by raising the water levels to enable irrigation all


Naga Hammadi Barrage<br />

Naga Hammadi Site<br />

year around rather than only during periods of flood. For this<br />

purpose, head regulators for the main two irrigation canals,<br />

Naga Hammadi El-Sharkia on the east side and Naga Hammadi<br />

El-Gharbia on the west side of the river, were constructed in<br />

1930, at approximately the same time as the Barrage. In addition,<br />

the increased water levels are useful in relation to navigation<br />

requirements. To a lesser extent, domestic and industrial<br />

water supplies also benefit.<br />

The High Aswan Dam (HAD) was constructed in the late<br />

1960’s to regulate the flow of the river Nile in Egypt. Prior to its<br />

constructions, the country was subjected not only to large seasonal<br />

variations in river discharges (the flood months being<br />

August to October), but also to sequences of years with belowaverage<br />

flow. Since the implementation of the High Aswan<br />

Dam with its active storage capacity of 90 × 109 m³ and flood<br />

retention storage of 41 × 109 m³, the river Nile discharges have<br />

been fully regulated.<br />

Maximum discharges at Naga Hammadi during the peak<br />

irrigation period from June to August are now around 2,400<br />

m³/s and reduce to less than 700 m³/s during the winter closure<br />

period of the irrigation systems for a three to four week<br />

period from mid-December to mid-January. Far lower minimums<br />

of 350 m³/s actually occur within this period for a<br />

number of days. After 1968, floods as previously known have<br />

not been experienced anymore. Hence, the characteristics of<br />

operation of the Naga Hammadi Barrage have substantially<br />

changed and the full capacity of the 100 vents for release of<br />

floods (maximum capacity of about 14,000 m³/s) is no longer<br />

required.<br />

The reduction of floods by HAD has resulted in the stabilizing<br />

of the river course laterally and in a reduction in the width<br />

of the riverbed. However, a process of dynamic change has<br />

been observed to varying degrees along the river course associated<br />

with riverbed degradation.<br />

The Nile valley north of Aswan follows generally a northerly to<br />

north-westerly direction. Between Luxor and Naga Hammadi,<br />

the river however bends substantially before again continuing<br />

in the original direction. This is considered to reflect the influence<br />

of major faults and geologic structural controls in the<br />

region (MOPWWR, 1992). This is particularly the case for the<br />

westward-trending reach of the river, which also parallels the<br />

trend of tributaries in Wadi Qena (directly north of Qena). The<br />

slope of the valley floor between Aswan to a point midway<br />

between Naga Hammadi and Assiut is of the order of 0.075 m/<br />

km.<br />

The floodplains adjacent to the river are utilized almost<br />

entirely for agricultural production based on irrigation. Precipitation<br />

is negligible (average less than 1 mm annually), resulting<br />

in no runoff from surrounding areas apart from the very<br />

occasional occurrence of localised floods from intense but<br />

extremely short rainfalls.<br />

The reach between Naga Hammadi and Esna Barrage lies<br />

within the Governorate of Qena. At the Barrage, the west bank<br />

and Dom Island are within the Governorate of Qena, while the<br />

east bank is within Sohag. In the vicinity and upstream of the<br />

NHB a number of population and industrial centres exist in<br />

addition to numerous local villages. Many rely on the supplies<br />

villages located some distance from the river.<br />

The regional population is in the vicinity of 2.5 million and,<br />

based on the average annual growth rate observed in Egypt, is<br />

increasing at around 2.3 % per annum. The economic livelihood<br />

of the majority of the population is based on agricultural production,<br />

although tourism and several large industrial factories<br />

also play a role in the local economy. Upstream of the Barrage,<br />

a number of large towns have been established. These<br />

include Naga Hammadi, Deshna, Qena and Luxor, located<br />

respectively at distances of 12, 42, 73 and 136 km.<br />

Water, Desalination and Irrigation | The Naga Hammadi Barrage<br />

90 | 91


Apart from providing services for the local agricultural economy,<br />

these and other smaller towns have also seen the establishment<br />

of relatively large industries, including the Aluminium<br />

City complex near Naga Hammadi and the sugar factories<br />

at Naga Hammadi, Deshna and Kous. The city of Luxor has<br />

developed as the major tourist centre in Upper Egypt.<br />

Lahmeyer International<br />

supports the project since 1993<br />

The steps which led to the present project may be summarised<br />

in their historical order as follows:<br />

In 1993 a consortium of consulting companies under the<br />

leadership of Lahmeyer International commenced work under<br />

the feasibility study contract, initially with conceptual and<br />

interim studies to focus the final feasibility study.<br />

The conceptual study, completed in September 1993, identified<br />

different options and layouts for the multi-purpose development<br />

of the barrage, with and without hydropower. The<br />

main competing options at the end of that study were rehabilitation<br />

and upgrading of the existing barrage versus construction<br />

of a new barrage with hydropower downstream. Having<br />

established these main options, an interim study was carried<br />

out to provide field-based information necessary to finalise the<br />

scope of the feasibility study, specifically by identifying the<br />

least-cost layout with hydropower.<br />

The interim study was completed in June 1994, and was able<br />

to narrow consideration of the downstream options to a single<br />

layout. The study also found that rehabilitation of the existing<br />

barrage remained a technical option, but not with hydropower<br />

due to the cost and risk of retro-fitting a power station to the<br />

existing structure. The interim study included, for the first<br />

time, formal examination of environmental issues through<br />

the mechanism of an initial environmental examination.<br />

The issue of the construction risks for the Barrage should be<br />

mentioned, as in 1929 the high level construction pit of the old<br />

Barrage was flooded and the construction process interrupted.<br />

With the new and much safer design of the Barrage and a<br />

hydropower plant, a construction pit down to 25 m below<br />

present river levels is needed. This is only possible by the now<br />

available modern construction techniques. The only location<br />

identified for safe Barrage construction by the soil investigations<br />

was 3.2 km downstream in the river bend around Dom<br />

Island. This was confirmed by soil investigations done in 1995.<br />

The feasibility study was carried out in two stages, 1995 –<br />

1996 and 1996 – 1997, and included a full environmental impact<br />

assessment (EIA). The first stage studied the options of new<br />

construction downstream with and without hydropower versus<br />

rehabilitation of the old barrage (the ‘base case’ for cost<br />

comparison purposes), and assumed a fixed headpond level of<br />

66.8 m at the new barrage. Concern about the impacts of this<br />

headpond level on groundwater, soil and housing conditions<br />

upstream led to a downward revision of the normal operating<br />

level of the proposed new barrage to 65.9 m, the same as the<br />

original maximum level at the old barrage. The feasibility<br />

study was revised to reflect this adjustment and the final version<br />

completed in February 1997.<br />

In 1999 the same consulting consortium as mentioned<br />

above received the contract for the tender design and tender<br />

documents, construction drawings, site supervision and support<br />

to the employer’s environmental group. The project was<br />

implemented as follows:<br />

1999: Preparation of tender design and tender documentation,<br />

prequalification<br />

2000: Tendering and contracting of works<br />

Beginning of 2001: Start of construction design<br />

June 2002: Start of construction<br />

May 2008: Start of commissioning<br />

June 2008 to May 2010: Post commissioning period<br />

Success for the benefit of all parties<br />

The Naga Hammadi Dam, as can be seen from the above, is a<br />

vital project for a country which has more than 80 % of its territory<br />

in desert zones. Roughly one year after the post-commissioning<br />

period, the project is considered a huge success by all<br />

involved parties and stakeholders, because:<br />

– the technical concept of the project proves to work very well<br />

after its implementation,<br />

− the environmental and social implications of the project<br />

have been taken into consideration during the construction,<br />

for the benefit of all stakeholders,<br />

− the envisaged construction schedule and the real construction<br />

period have been close to be identical,<br />

− the same applies to the estimated budget of the project and<br />

the real expenses.<br />

Encouraged by this success, the same stakeholders, ministries<br />

and funding agencies have agreed to build the Assiut Dam over<br />

the river Nile some hundred kilometres downstream of the<br />

Naga Hammadi Dam. As of today, the Assiut Project is in the<br />

tendering stage for contractors and suppliers.<br />

After a tender process the client decided to make use of the<br />

experience gained during the successful implementation of<br />

the Naga Hammadi Dam and has awarded the consultancy<br />

services to Lahmeyer International as the lead company of a<br />

joint venture.Na ad diam et vel estisl ut nulla core velenit nulla<br />

feuisim velessim etuerae sequisl utpate eum zzrit dit alit il ut


Algerian Desalination Market Update<br />

ILF Beratende Ingenieure GmbH<br />

Thomas Altmann | Executive Vice President, <strong>Energy</strong> & Desalination<br />

By the year 2011, 13 seawater desalination projects with a total capacity of 2.26 million m 3 /d will be<br />

developed in Algeria, contributing to what is probably one of the largest growths in national<br />

capacity in recent years. After the planned completion of the desalination programme by 2012,<br />

the newly installed seawater desalination facilities will contribute about 70 l per capita per day<br />

to the drinking water supply of the densely populated coastal strip along the Mediterranean,<br />

where more than 90 % of Algeria’s population lives.<br />

Market situation<br />

The Algerian seawater desalination programme is part of an<br />

ambitious presidential programme of water resource development.<br />

For drinking water supply, this programme comprises 22<br />

new dams by 2009, several huge water transfer systems with<br />

lengths up to 740 km, installation, as well as upgrading and<br />

repair of drinking-water supply systems of huge municipalities.<br />

For wastewater treatment, the programme comprises:<br />

– construction of 40 new wastewater treatment plants<br />

– upgrading and repair of 20 existing wastewater treatment<br />

plants<br />

– construction of 50 wastewater lagoons<br />

– important investments in wastewater collection systems<br />

During its expansion into the Algerian market, ILF Consulting<br />

Engineers has been involved in seven of the projects as lender’s<br />

engineer and independent expert, accounting for more than<br />

60 % of the country’s planned seawater reverse osmosis (RO)<br />

capacity.<br />

The major projects developed in Algeria are summarised in the<br />

table “Desalination projects in Algeria”, which shows the location,<br />

main shareholders of the project companies and desalination<br />

capacity of the projects. These are built along the Mediterranean<br />

coast with the majority of plants located west of<br />

Algiers in areas both subject to a rapid expansion and lack of<br />

fresh water. The Algerian desalination programme benefits<br />

from international project finance with a strong involvement<br />

of national investors and lenders. In 2001, Sonatrach and Sonelgaz,<br />

the two largest public companies in the Algerian energy<br />

sector, created the 50 : 50 % joint venture company Algerian<br />

<strong>Energy</strong> Company (AEC).<br />

AEC’s core objectives is to develop seawater desalination<br />

plants in partnership with international investors, where the<br />

two parties set up a project company responsible to design,<br />

build, operate, and own the water produced. In all but the early<br />

projects, AEC has taken a 49 % share in the project company,<br />

Water, Desalination and Irrigation | Algerian Desalination Market Update<br />

92 | 93


ILF <strong>Projects</strong><br />

while the international investor took 51%. With a new addendum<br />

to the financial law in place, it is likely that AEC will take<br />

shares of more than 50 % in those projects which have not yet<br />

seen financial close.<br />

Most developers have a 20 % equity participation in the<br />

project company. Loans are provided by national banks such as<br />

Banque Extèrieure d’Algérie (BEA), Banque Nationale d’Algérie<br />

(BNA) and Credit Populaire d’Algérie (CPA). For future projects,<br />

loans will be provided by a newly created National Investment<br />

Fund, financed mainly by resources made available by the<br />

treasury or borrowed on the national capital market.<br />

Electricity Provider<br />

Sonatrach<br />

Water Authority ADE<br />

AEC<br />

WPA<br />

ILA<br />

EPC<br />

(Supply Contractor)<br />

Lender<br />

FIN<br />

Project Company<br />

[51 % Investor<br />

+ 49 % AEC]<br />

EPC<br />

Civil + Installation<br />

EPC (Constr.)<br />

+ O & M Contractor<br />

Lender’s Engineer<br />

Owner’s Engineer<br />

O&M<br />

Electricity<br />

With assignments as lender’s engineer and independent expert,<br />

ILF is involved in 58 % of the desalination capacity in Algeria<br />

with a total capacity of 1.32 million m 3 /d. In these assignments,<br />

ILF advises three major Algerian banks (BEA, BNA, CPA).<br />

For all projects where ILF is/has been involved, the table “ILF<br />

Desalination projects in Algeria” summarises the main technical<br />

features. The main treatment stages of all the plants<br />

reported in this table are:<br />

– seawater intake<br />

– pretreatment<br />

– SWRO<br />

– posttreatment and delivery<br />

All Algerian desalination projects are SWRO plants, which<br />

means that a well designed seawater pretreatment system is<br />

the key pre-requisite for satisfactory performance in terms of<br />

membrane life and economical operation.<br />

The table below shows that there is a wide variety of technical<br />

solutions applied to the plant with both conventional and<br />

UF pretreatment. The recovery ratio tends to be relatively high<br />

compared to projects in other countries, which is justified by<br />

the relatively good seawater conditions.<br />

From an economic point of view, compared to the private<br />

market benchmark occurring in the Middle East (US $ 1,320 to<br />

1,760/[m 3 /d]) between 2007 and 2011, it can be seen in the table<br />

“ILF Desalination projects in Algeria” that projects in North<br />

Africa involve low specific capex; this is due to both a very competitive<br />

tendering process and favorable water conditions.<br />

Main Subsuppliers EPC<br />

Project Structure<br />

A peculiarity of the Algerian desalination projects is the fact<br />

that all of them have at least one of the international shareholders<br />

of the project company involved in the construction<br />

(EPC turn-key contract) and operation (O & M contract) of the<br />

plant. Obviously, the conflict of interest thus created has been<br />

accepted.<br />

The comparison between the plants specific cost in the Middle<br />

East and in Algeria is shown in the figure “Capital cost for the<br />

Algerian plants”. Among all the projects, Magtaa (500.000<br />

m 3 /d) is certainly on e of the most important desalination<br />

projects worldwide.<br />

The project was awarded on a very challenging Capex value,<br />

and it is presently under construction.<br />

ILF Desalination projects in Algeria<br />

SWRO Project Lender Time frame<br />

Investment<br />

(Mio US $)<br />

Specific capex<br />

(US $/m 3 /d)<br />

Plant capacity<br />

(m 3 /d)<br />

SWRO<br />

pretreatment<br />

SWRO flux<br />

(Lmh)<br />

SWRO recovery<br />

(%)<br />

Cap Djinet BNA 2008 – 2010 100 – 150 1525 1000,000 conv 13.2 45<br />

Fouka CPS 2008 – 2010 200 – 250 1797 120,000 conv 13.5 45<br />

Mostaganem BEA 2008 – 2010 200 – 250 1276 200,000 conv 13.2 45<br />

Magtaa BNA 2008 – 2011 400 – 500 882 500,000 UF 14.1 45<br />

Skida BNA 2008 100 – 150 1179 100,000 conv 13.2 47<br />

Souk Tlata BNA 2007 – 2010 200 – 250 1276 200,000 UF 12,8 45<br />

Tenes CPA 2008 – 2010 200 – 250 1325 200,000 conv 12.1 45


Conclusion<br />

Algerian <strong>Projects</strong><br />

Project Company<br />

Capacity<br />

(m 3 /d)<br />

1 Ben Saf Cobra, AEC 200,000<br />

2 Cap Djinet Inima/Aqualia, AEC 100,000<br />

3 El Tarf Inima/Aqualia, AEC 50,000<br />

4 Fourka Snc Lavalin/Acciona, AEC 120,000<br />

5 Hamma GE Water, AEC 200,000<br />

6 Honaine Befesa/Sadyt, AEC 200,000<br />

7 Arzew Black & Veatch, AEC 90,000<br />

8 Magtaa Hyflux, AEC 500,000<br />

9 Mostaganem Inima/Aqualia, AEC 200,000<br />

10 Qued Sebt Biwater, AEC 100,000<br />

11 Skikda Befesa/Sadyt, AEC 100,000<br />

12 Souk Tlata Hyflux/Malakoff, AEC 200,000<br />

13 Tenes Befesa/Sadyt, AEC 200,000<br />

Total Capacity 2,260,000<br />

Algeria is a relatively new market that has seen very fast development<br />

in the last few years. In Algerian desalination plants<br />

the technical solutions are different because the optimal process<br />

condition has been reached as a result of differing needs. As<br />

investment costs, operation costs and, consequently, tariffs are<br />

low, the country represents very good conditions for the development<br />

of seawater desalination plants.<br />

US $/<br />

(m 3 /d)<br />

2500<br />

2000<br />

1500<br />

500<br />

0<br />

RO Capex<br />

Gulf Arabian Sea Algeria Red Sea<br />

Desalination projects in Algeria<br />

Capital cost for the Algerian plants<br />

Water, Desalination and Irrigation | Algerian Desalination Market Update<br />

94 | 95


Special Topics


Market Development<br />

and Business Opportunities in the<br />

Power Sector of Saudi Arabia<br />

Saleh Hussein Alawaji, Ph. D. | Deputy Minister for Electricity,<br />

Ministry of Water and Electricity,Chairman of the Board,<br />

Saudi Electricity Company (SEC), Kingdom of Saudi Arabia<br />

Saudi Arabia experiences a rapid development in social, industrial, economical and infrastructure<br />

projects as well as concerning a growing population. Today, Saudi Arabian factories are not only<br />

producing for the local market but also for the international market with some of the largest<br />

petrochemical plants in the country.<br />

Saudi Arabia has a very young population. Every year more<br />

than half a million new citizens who need jobs and accommodation<br />

in the future have to be welcomed. Traditionally, even<br />

young couples require an individual home which should be<br />

affordable. More or less all domains of the public infrastructure<br />

including the education system are growing fast and will<br />

offer a lot of opportunities. These factors make the demand for<br />

electricity growing at high rate.<br />

In the last decade the demand of electricity has increased<br />

with an annual average rate of 8 %. The installed capacity has<br />

already reached 53 GW (43 GW from SEC power plants, 10 GW<br />

from other producers), and the peak load reached 47.3 GW. To<br />

meet the growing demand, 3 – 4 GW of installed capacity have<br />

to be added each year. At the same time aggressive measures<br />

have to be implemented to control the increasing demand.<br />

As one of the largest producers of fossil energy, Saudi Arabia<br />

has a solid financial background. The required investments for<br />

the power projects are estimated to reach 400 billion Saudi<br />

Riyals (about 75 billion Euros) for the next decade which will<br />

overstress the possibilities of the power sector’s budget. The<br />

contribution from the private sector (local, institutional and<br />

foreign investors) is expected to reach 30 – 40 % of the required<br />

investment volume. For the time being liquid fuel and natural<br />

gas are the only energy sources for power generation. Increasing<br />

demand for fuel supply is one of the drives for the government<br />

to investigate all the possible options to diversify the fuel<br />

mix for the power sector and water desalination, such as<br />

nuclear and renewable energy sources.<br />

The power sector of Saudi Arabia needs capable and reliable<br />

partners for executing, operating and maintaining these challenging<br />

projects. Additionally, there are many opportunities<br />

for a joint cooperation in the associated research and development,<br />

as well as in an industrial and technical aspects related<br />

to the power sector. The sector is well prepared to consider and<br />

support all kinds of cooperation options, and is open for all<br />

kinds of proposals from the German side.<br />

In the following, brief background information and a glance<br />

of the business opportunities in the power sector of Saudi Arabia,<br />

as well as information about the power market development<br />

in the region will be given.<br />

Special Topics | Market Development and Business Opportunities<br />

96 | 97


Development of the Electricity Sector (2000 – 2011):<br />

Within the last eleven years, the demand of peak load has<br />

increased from 22 to 47.3 GW. In the last ten years, the demand<br />

for electricity grew by an annual average of 8 %, while in specific<br />

areas and seasons the demand was even ramping up to<br />

30%. In the same period, the length of transmission lines<br />

increased from 30.000 km to 48.300 km to serve about 6.2<br />

million customers. Table (1) demonstrates the development in<br />

the Saudi Arabia power sector for the period 2000 – 2011.<br />

Data<br />

No. of<br />

Customers<br />

(Million)<br />

Peak load<br />

(MW)<br />

Available<br />

Transmission<br />

Generation<br />

(km-circular)<br />

(MW)<br />

<strong>Energy</strong><br />

(GWh)<br />

2000 3.6 21.700 23.800 30.000 114.000<br />

2011 6.0 47.300 53.000 48.300 237.000*<br />

Increase 2.4 25.600 29.200 18.300 123.000*<br />

Growth (%) 67 118 123 61 108*<br />

Table 1: Development of the Saudi power sector 2000 – 2011. (* 2010)<br />

Forecast of electricity demand till 2020<br />

The installed capacity of the power plants in the kingdom has<br />

reached 53 GW in 2011, and is predicted to approach 80 GW in<br />

2020 (as demonstrated in figure 1). At the same time the transmission<br />

and distribution network has to be reinforced.<br />

20,710<br />

22,634<br />

23,118<br />

25,831<br />

26,581<br />

28,693<br />

30,680<br />

32,672<br />

35,545<br />

38,620<br />

42,590<br />

46,110<br />

49,670<br />

53,830<br />

57,350<br />

61,500<br />

64,720<br />

67,990<br />

71,220<br />

74,340<br />

77,430<br />

90,000<br />

80,000<br />

70,000<br />

60,000<br />

50,000<br />

40,000<br />

30,000<br />

20,000<br />

10,000 ← D = 1.597 → ← D = 2.779 → ← D = 3.782 → ← D = 3.186 →<br />

0 6.7 % 8.2 % 7.6 % 4,7 %<br />

2000<br />

2001<br />

2002<br />

2003<br />

2004<br />

2005<br />

2006<br />

2007<br />

2008<br />

2009<br />

2010<br />

2011<br />

2012<br />

2013<br />

2014<br />

2015<br />

2016<br />

2017<br />

2018<br />

2019<br />

2020<br />

Figure 1: Actual and forecasted demand (MW)<br />

– Low reserve capacity during a very short period at the<br />

summer peak load.<br />

– Fuel supply and fuel mix.<br />

– <strong>Energy</strong> efficiency related issues.<br />

– Public awareness and education about rational energy use.<br />

– Power market development.<br />

Investment opportunities for the private sector<br />

With the policy of the government of Saudi Arabia to open its<br />

market for the private sector investment (local and foreign),<br />

the power market becomes one of the most attractive sectors.<br />

Feasibility studies have shown a tremendous potential in electricity<br />

projects as well as industries and services related to the<br />

sector.<br />

With the expected continuing rapid growth of the industry<br />

for the next 20 years, the private sector investment is proven<br />

to be very attractive. International companies specialising in<br />

electric power are being attracted to Saudi Arabia, which they<br />

see as one of the most promising and developing electricity<br />

markets in the region.<br />

Vision for the development of the power market<br />

In order to improve the overall efficiency of its power sector as<br />

well as to diversify the national income, Saudi Arabia is very<br />

keen to develop a sub-regional, regional and international<br />

power market. At the sub-regional level, Saudi Arabia is the<br />

major investor in the GCC grid of more than 800 km, which is<br />

already in operation since 2009, linking the power systems of<br />

Saudi Arabia, Bahrain, Qatar, Kuwait and the United Arab Emirates.<br />

At the regional level, Saudi Arabia and Egypt have jointly<br />

completed an assessment for connecting the power systems of<br />

both countries, which proved the feasibility for investing in a<br />

grid of 1,300 km (D.C.) with a maximum capacity of 3 GW. When<br />

this link becomes reality, it will connect the GCC networks with<br />

other Arab countries’ networks forming a significant power<br />

market. In the meantime, the World Bank is carrying out a feasibility<br />

study to connect the network of Saudi Arabia to the<br />

European network, targeting, at the long run, trading electricity<br />

with European market.<br />

Conclusion<br />

Challenges facing the Saudi Power sector<br />

Saudi Arabia’s power sector, which is experiencing rapid<br />

develop ments, faces a number of major challenges such as:<br />

– High increase in demand.<br />

– Huge capital investment.<br />

– Wide variation in the peak load between summer<br />

and other seasons.<br />

The rapid developing power sector in Saudi Arabia creates great<br />

business opportunities for local and foreign investors. The sector<br />

is interested in, and well prepared to build a long-term partnership<br />

with capable, qualified and reliable partners in order<br />

to cooperate for tackling the major challenges facing the sector.<br />

The German business community and industry are among the<br />

best candidates for this partnership.


Renewable <strong>Energy</strong> Finance –<br />

Bringing the Private Sector in<br />

Amereller Legal Consultants<br />

Dr. Kilian Bälz | Attorney<br />

The future of renewable energies in the MENA region depends on attracting private sector<br />

investment. In the past, most projects in the region were either funded by the government or<br />

through international development cooperation. Now, projects are moving into a new phase.<br />

Egypt, Jordan, and Morocco have tendered renewable energy projects that are based on<br />

the BOO model. The private investor will build and operate a wind or solar farm and in return will<br />

be granted a power purchase agreement under which it can feed electricity into the grid<br />

for a guaranteed price.<br />

Financing renewable energy projects in the MENA region can<br />

be challenging. Intense sun radiation and constant winds can<br />

be taxing on the equipment, and technology is not proven<br />

under the prevailing climate conditions. Moreover, any investment<br />

in renewable energies is based on long-term considerations,<br />

having a horizon of usually 15 to 25 years. This is much<br />

longer than an investment in MENA real estate where investors<br />

often expect to break even after three to five years. Last but not<br />

least, since 2011 the political landscape in many MENA countries<br />

is in flux. Whereas the transformation of Egypt and Tunisia<br />

ultimately has the potential to substantially improve the<br />

investment climate, during the transitional period investors<br />

are exposed to additional political risk.<br />

The following shall give a brief overview of the key legal risks<br />

relating to private financed renewable energy projects. It will<br />

highlight the challenges for sponsors and financing institutions<br />

and will provide some initial guidance on how these<br />

issues can be addressed.<br />

Special Topics | Renewable <strong>Energy</strong> Finance<br />

98 | 99


What private investors expect<br />

No project is like the other. But the investors’ expectations are<br />

more or less the same, across the globe – and all of them are<br />

somehow related to the legal framework.<br />

– The project must guarantee a secure cash flow. This is the<br />

most important requirement, as the cash flow will be used<br />

to service the project’s debts and the promised return on<br />

investment. Where no feed-in laws exist – as in most countries<br />

in the MENA region – the power purchase agreement<br />

will be the financial backbone of the project. Here, it will be<br />

crucial to ascertain that the agreement cannot be terminated<br />

prematurely, and if so, only for full and effective compensation.<br />

Rules on “administrative contracts” can permit<br />

government entities to terminate contracts for convenience<br />

– a point that should be carefully considered.<br />

– In many projects, the revenues are backed by a government<br />

guarantee. Here, it is crucial to ascertain that the respective<br />

governmental authority – usually the Ministry of Finance –<br />

will have complied with the required internal procedures<br />

and waived any defenses relating to sovereign immunity.<br />

Otherwise the guarantee may not be enforceable.<br />

– The project must be able to use the project site during the<br />

life cycle of the project. Here, the project company usually<br />

enters into a long term lease agreement that also should be<br />

secured through the registration of a real right of use<br />

(manfa’a). <strong>Projects</strong> often are located in remote desert areas.<br />

The lack of developed land registers, or slow allocation proceedings<br />

can pose significant challenges. Disputes over land<br />

can substantially impede the operation of a project.<br />

– Usually, a bundle of service and maintenance agreements is<br />

entered into in relation to a project. These agreements are<br />

governed by local law. Here, special attention must be given<br />

to statutory termination rights and clauses governing<br />

events of force majeure.<br />

– A project must be in the position to raise debt. Hardly any<br />

investor will finance a renewable energy project wholly by<br />

equity. In order to raise debt, adequate security rights must<br />

exist, as no financial institution will lend without collateral.<br />

In MENA projects, designing an adequate security package<br />

can be the key to the success of the project.<br />

– The investment must be protected against expropriation or<br />

other unfair treatment from the side of the host country.<br />

Whereas most countries in the MENA region were considered<br />

to be “stable” and “investor friendly” in the past<br />

(whether correctly or not), the Arab Spring has shook investor<br />

confidence. While it must be emphasised that the political<br />

transformation bears significant upside potential in the<br />

economic field, at the present point in time a sober analysis<br />

has to conclude that the future across the region is uncertain.<br />

Bilateral Investment Treaties (“BITs”), which Germany<br />

has concluded with many countries across the region, provide<br />

a certain relief. The BITs protect an investment against<br />

expropriation and other unfair treatment by the host country<br />

and provide – for example – the investor with a compensation<br />

claim in the event of an unfair (because unfounded)<br />

termination of the power purchase agreement.<br />

Zafarana IV Wind Farm, Egypt


Project loans<br />

Fund Structures<br />

Project finance structures have been used across the MENA<br />

region for decades – be it in the oil and gas sector, for (conventional)<br />

independent power projects or in the real estate and<br />

tourism sector. Under a project finance structure a loan is<br />

extended to a special purpose vehicle owning and operating<br />

the project. Normally, the cash flow of the project will be the<br />

only (or major) source of recourse in relation to repayment of<br />

the loan. The structure is a common way of “leveraging” long<br />

term investments.<br />

In relation to renewable energy projects, a number of issues<br />

tend to arise. It goes without saying that the legal framework<br />

differs from one country to another. While the project loan<br />

often is governed by foreign law, the creation of security is subject<br />

to local laws. Here, across the MENA region, the following<br />

issues will typically arise:<br />

– When equipment is firmly installed on the site, property<br />

passes to the land owner. Whether this also applies to wind<br />

and solar farms continues to be the subject of debate, especially<br />

because usually the installations are removed at the<br />

end of the project’s life cycle. This however can affect attaching<br />

security rights to the equipment.<br />

– In government contracts, claims are not freely assignable.<br />

Thus, if claims under the PPA are assigned for security purposes,<br />

there must be consent from the government authority<br />

involved. The assignment must be addressed at an early<br />

stage of the negotiations.<br />

– Usually there is no floating charge that would permit<br />

encumbering present and future assets of the project.<br />

Instead, a pledge agreement must specify in detail the<br />

assets that are pledged. With regard to project revenues, a<br />

special project account is usually set up (“cash trap”).<br />

– Normally, a pledge requires that the pledgee takes possession<br />

of the assets pledged. This is often impractical. Here, a<br />

bailee structure can provide relief, according to which a certain<br />

person (e. g. member of management) exercises possession<br />

for and on behalf of the pledgee.<br />

Now the challenge is to transfer the experiences from the oil<br />

and gas sector to the renewable energy sector, which requires a<br />

thorough knowledge of project financing techniques and of<br />

the specificities of renewable energy projects.<br />

While project loans serve to raise debt, fund structures can be<br />

used to raise the equity required for the project (usually in a<br />

range of 20 % to 40 %). So far, in most MENA projects the equity<br />

has been raised by the sponsors themselves. This means that<br />

the sponsors who initiate the project simultaneously are the<br />

shareholders in the project company and fund the company<br />

through contributions and loans.<br />

When a sponsor wants to seek contributions from further<br />

investors, fund structures can be used. Here, either the investors<br />

participate as limited or silent partners in the project company<br />

(meaning that their involvement is limited to a financial<br />

contribution) or a separate feeder fund is set up. With regard to<br />

MENA projects, fund structures are not common so far. Due to<br />

the risk structure, up to now MENA projects are not appealing<br />

to high net worth individuals who would be attracted by wind<br />

and solar parks in Europe.<br />

However, a number of investment funds that are investing<br />

in renewable energies globally and are looking into developing<br />

projects in the MENA region have been set up. Here, the private<br />

investor does not invest directly in a project, but in a fund that<br />

in turn invests in a number of projects of a large diversity. Such<br />

investment funds have the advantage that they invest in<br />

numerous projects, so that the risks are diversified and mitigated.<br />

Investment funds would usually come in when the<br />

project development, to a certain extent, has already started.<br />

They rarely engage in greenfield investments. Furthermore,<br />

these institutional investors would depend on certain market<br />

practices and standards which have not developed everywhere<br />

in the MENA region so far.<br />

Project Bonds<br />

On the debt side, project bonds can be an interesting alternative<br />

to project loans. Under a bond structure, the project company<br />

would issue project bonds and would hereby tap the capital<br />

market to raise debt. For the project company this has the<br />

advantage that it can access the capital markets. The downside<br />

of project bonds is that the structure inevitably is more complex<br />

than a loan structure. Moreover, in case of a restructuring<br />

of the project should be required, it is often easier to deal with<br />

a lender (or small group of lenders) than with a large (and anonymous)<br />

group of bondholders. Project bonds have been used in<br />

a number of infrastructure transactions across the region and –<br />

also structured as Islamic “sukuk” bonds – have enjoyed considerable<br />

popularity in the Arab Gulf. Renewable energy projects<br />

are ideally suited for Islamic investors, as they perfectly comply<br />

with Sharia requirements. Nevertheless, projects will have to<br />

mature further, both technically and commercially, before they<br />

are ready to be offered to the capital market.<br />

Special Topics | Renewable <strong>Energy</strong> Finance<br />

100 | 101


Acceleration in a resonator.<br />

Electromagnetic fields accelerate the electrons in the superconducting resonators.<br />

© DESY 2000<br />

Knowledge for the Desert –<br />

A Euro-Mediterranean Partnership<br />

on Science and <strong>Energy</strong><br />

Deutsches Elektronen-Synchrotron DESY<br />

Stephan Haid | Project Manager<br />

Given the many existing links between Europe and its southern Mediterranean neighbours and<br />

considering the current political upheavals in Tunisia, Egypt, and other Arab countries, Europe is<br />

asked to send a clear signal of support to help strengthening the capacities of its neighbours in<br />

Middle East and North Africa (MENA).<br />

A stable democratic consolidation has only a chance if it is<br />

accompanied by a sustainable economic development that is<br />

based on forward-oriented jobs for the young population in<br />

the Arab world. Particularly among the youth, the unemployment<br />

rates in many Arab countries are the highest worldwide.<br />

The poor employment opportunity is one of the reasons for<br />

the protest movement. But also democratically elected governments<br />

will have to address the social and economic problems<br />

and have to demonstrate a sustainable perspective for its fast<br />

growing population.


Renewable energies<br />

from the desert<br />

Capacity building in science,<br />

research and innovation<br />

The renewable-energy sector holds enormous opportunities<br />

for the MENA region. Above all, a reliable, affordable and sustainable<br />

supply with electric power is of importance for the<br />

economic growth and, therefore, for the democratic development<br />

of the whole region. While on the one hand there are<br />

pressing challenges in MENA, like the fast growing population<br />

and the simultaneous strive for enhanced prosperity, both<br />

leading to increased demands for energy and water, there<br />

exists on the other hand an immense potential of solar energy<br />

with an annual average solar irradiance of up to 2,400 kWh/m 2 .<br />

Depending on the availability of solar infrastructure, like Concentrating<br />

Solar Power Plants (CSP), MENA would be able to produce<br />

enough energy and co-generated water through seawater<br />

desalination for its own demands. Moreover, there are prospects<br />

that excess energy might be exported to European markets<br />

to cover up to 15 to 20 % of European needs by 2050. At<br />

least since the nuclear disaster of Fukushima, Europe realises<br />

its urgent need for cleanly produced electricity. Obviously a<br />

close partnership between Europe and its Arab neighbours<br />

should be encouraged to accomplish this.<br />

Such a partnership can only be successful if it is established<br />

on eye level. For the example of the gigantic desert energy<br />

project DESERTEC, this means that from the start the MENA<br />

region must be enabled to benefit on multiple levels. Besides,<br />

implementing a sustainable energy supply the MENA region<br />

should profit from technology and know-how transfer and<br />

should exploit its potentials with regards to local industries<br />

and new sources for income and employment. However, this<br />

also requires a considerable effort from the southern Mediterranean<br />

states. If jobs for manufacturing components and constructing<br />

solar power plants are not created at a sufficient level<br />

in the MENA region, these countries would remain dependent<br />

on foreign knowledge and technology. Therefore, to obtain a<br />

large share of the value-added chain, capacity building for<br />

highly qualified jobs is needed in the MENA region.<br />

Scientific, technological, and educational cooperation between<br />

Europe and MENA needs to be significantly enhanced – on all<br />

levels and in all domains – to build up the capacities, communities,<br />

and collaborations that are required for a large-scale<br />

deployment of renewable energies in the desert.<br />

There are already existing institutions and programs aiming<br />

to transfer technical know-how from Europe to MENA. For<br />

example, the DESERTEC Foundation launched a university network<br />

with 18 universities from North Africa and the Middle<br />

East as well as European institutes and enterprises to support<br />

the training of specialised staff in the field of solar technology.<br />

Another example is the enerMENA project of the German Aerospace<br />

Centre DLR, one of the leading research institutes in concentrated<br />

solar power and early advocates of the DESERTEC<br />

concept. They cooperate with Northern African countries,<br />

which are about to implement their first solar power plants.<br />

Dissemination of technology and multiplication of local knowhow<br />

are main targets of this project.<br />

Beside the important issue of training of specialised staff,<br />

implementation of a modern science and education system is<br />

also needed. For economic recovery the capacity for innovation<br />

is a key factor. The Arab countries have a lot of catching up to<br />

do in this regard. Unlike China or other Asian countries the<br />

Arab countries have to catch up with independent and largescale<br />

development of capital-intensive goods and technologies.<br />

But that would be necessary for a sustainable economic development.<br />

Research partnerships that cross boundaries between<br />

regions are key elements for development and poverty reduction.<br />

Up to now investments of the North in research cooperation<br />

with the South are not yet significant enough to act as<br />

motor for local development. Transfer of knowledge and technology<br />

from North to South can only be effective once education<br />

and research structures are established at the receiving<br />

end and newly acquired knowledge can be applied locally.<br />

Strengthening the capacities in the areas of science, research,<br />

and innovation of the MENA countries is a big challenge and<br />

should be the priority for new EU-programmes in context of<br />

the European neighbour policy.<br />

Scientists working with PETRA III,<br />

one of the best X-Ray radiation sources in the world.<br />

© DESY 2011<br />

Special Topics | Knowledge for the Desert<br />

102 | 103


After signing a scientific cooperation agreement<br />

between DESY and SESAME (ltr.):<br />

Prof. Dr. Sir Chris Llewellyn-Smith (President SESAME Council),<br />

Prof. Dr. Dr. h.c. mult. Klaus Töpfer (Executive Director IASS),<br />

Prof. Dr.Dr.h.c. Helmut Dosch (Chairman of the DESY Board of Directors),<br />

Prof. Dr.Gretchen Kalonji (UNESCO)<br />

and Prof. Dr. Khaled Toukan (Minister for <strong>Energy</strong><br />

and Mineral Resources, Jordan). © DESY 2011<br />

Scientists and industrial representatives<br />

discussed the possibilities of a science and energy<br />

partnership between Europe<br />

and the Southern Mediterranean countries.<br />

© DESY 2011<br />

A joint European and MENA energy<br />

and science region<br />

Under the patronage of UNESCO more than 250 representatives<br />

of 30 nations convened at the “Solar <strong>Energy</strong> for Science” Symposium<br />

on 19 and 20 May 2011 in Hamburg to make first steps<br />

towards a joint European and MENA energy and science region.<br />

The participants and the speakers – among them two Nobel<br />

laureates – including a multi-disciplinary high-level representation<br />

from various science organisations, research institutes,<br />

from the solar energy industry, and from funding agencies as<br />

well as from the European Commission draw the conclusion<br />

that with political transitions underway in the MENA countries<br />

there is now a unique opportunity to strengthen the European-<br />

MENA scientific partnership offering long-term perspectives<br />

for the whole Euro-Mediterranean area.<br />

Thanks to its cooperative and international nature, science<br />

can build bridges into the future – towards more sustainability,<br />

growth, and stability. To this end science should also be understood<br />

as an instrument of diplomacy and should help resolving<br />

global problems.<br />

Therefore DESY, Germany’s largest accelerator centre, and its<br />

initiative “Solar <strong>Energy</strong> for Science” is proposing a strategic<br />

partnership between scientific institutions from MENA and<br />

Europe that couples scientific cooperation with sustainable<br />

energy supply.<br />

The central element of the proposed strategic partnership is<br />

scientific cooperation. For example, granting access to large<br />

scale European research infrastructures, establishing local scientific-technical<br />

research capacities, fostering scientific<br />

exchange, training of young scientists, and promoting technology<br />

transfer are essential ingredients to advance the MENA<br />

region towards a knowledge-based society.<br />

This binding agreement between the cooperating partners<br />

couples scientific collaboration to the advancement of renewable<br />

energy exploitation in MENA and to an accelerated integration<br />

of a Euro-Mediterranean energy market. The participating<br />

partners will get direct or indirect access to sustainable energy<br />

resources. The long-term goal is that DESY, but also other<br />

national or European research centres, partly cover their power<br />

needs with renewable energies from MENA and in return offer<br />

scientific exchange with partner institutions in this region.<br />

As a first concrete step in accordance with “Solar <strong>Energy</strong> for<br />

Science” DESY and SESAME (Synchrotron-light for Experimental<br />

Science and Applications in the Middle East), a research centre<br />

which is presently under construction in Jordan, agreed on<br />

such a scientific cooperation. SESAME, a multilateral cooperation<br />

project with representatives from Israel, Jordan, Iran,<br />

Cyprus, Turkey, Palestine, Bahrain, and Egypt, will strengthen<br />

basic research in natural sciences, counteract brain drain, and<br />

supply links for a sustainable Euro-Mediterranean partnership.<br />

This strategic partnership should act as stimulus for further<br />

follow-up projects.<br />

A Euro-Mediterranean partnership based on knowledge and<br />

future-proof renewable energy technologies thus would not<br />

only make use of the immense local natural resources but<br />

above all exploit the enormous potential of the young population<br />

in the Middle East and North Africa.


The Industrial Consortium Dii:<br />

Building a Sustainable <strong>Energy</strong> Future<br />

Based on the Desertec Vision<br />

Type of technologies considered<br />

for the first reference project.<br />

Source: SIEMENS<br />

Dii GmbH<br />

Paul van Son | Dii CEO<br />

<strong>Energy</strong> is one of the crucial elements for life on earth. The main sources of energy today are<br />

exhaustible and the use of such has a negative impact on our natural environment. In order to<br />

protect living conditions for the present and future generation, a reliable and sustainable<br />

energy supply will therefore be one of the major challenges of mankind. The recent worldwide<br />

re-evaluation of our energy supply following the Fukushima catastrophe accelerates the<br />

pressing question of our times: Where are the large sustainable energy resources for the future?<br />

An immense energy potential can be found in the deserts globally.<br />

All regions of the world that have access to this potential<br />

could be sustainably supplied with clean power. The Desertec<br />

vision points out the enormous amount of energy being<br />

released from the sun to the deserts of our earth every day. An<br />

abundance of electric energy could be generated from these<br />

sources and existing technologies would be capable of delivering<br />

this energy to the diverse energy markets day and night. As<br />

a result of the growing energy cooperation between Europe<br />

(EU), the Middle East and North Africa (MENA), these regions<br />

now have a unique chance to inaugurate a new era based on<br />

partnership and which will contribute to their joint prosperity.<br />

Dii, the industrial consortium comprising 56 institutions from<br />

all over the world, works towards creating the framework for<br />

the implementation of the Desertec vision in the EU-MENA<br />

regions. The specific aim is to deliver the framework for largescale<br />

use of renewable energy from the North African and Middle<br />

Eastern deserts. Desert power is initially intended for both<br />

the local energy demand of the producing countries and<br />

export. Desertec is a vision: an overall concept rather than one<br />

centralised, stand alone project. Numerous individual projects<br />

will be created in cooperation with local stakeholders (governments,<br />

companies), aiming to produce and transfer power generated<br />

from renewable energies. Dii is the facilitator, catalyst<br />

and coordinator of the entire process.<br />

Special Topics | Building a Sustainable <strong>Energy</strong> Future<br />

104 | 105


First reference projects on the way<br />

Reference projects, also known as joint projects, are not only<br />

important to show that renewable energies can be appropriately<br />

generated, transferred and sold, but also to make the<br />

abstract nature of the Desertec vision tangible. All feasible<br />

technologies for producing and transporting power are already<br />

in use worldwide. Nevertheless, investors will require confirmation<br />

that it is indeed both possible and practical in economic,<br />

technical and regulatory terms to generate energy in the desert<br />

and transport this power by crossing borders to as far afield as<br />

Europe.<br />

Dii is therefore planning to offer two to three reference<br />

projects to tender. The first joint project involves collaboration<br />

with MASEN, the Moroccan Agency for Solar <strong>Energy</strong>. Further<br />

projects could ensue in Algeria, Tunisia and Egypt.<br />

The industrial consortium has three objectives:<br />

– The creation of a positive investment climate: to develop<br />

the technological, economic, political and regulatory framework,<br />

thereby attracting interest, as well as enabling investment,<br />

in renewable energies and interconnected power<br />

grids in North Africa and the Middle East.<br />

– The initiation of selected reference projects as a means of<br />

demonstrating overall feasibility and reducing costs.<br />

– The development of a long-term implementation concept<br />

(Rollout Plan) by the year 2050, including guidance on<br />

investment and funding.<br />

The benefits of desert power<br />

for the EU-MENA region<br />

The Desertec vision holds important economic, ecological and<br />

socio-economic opportunities for North Africa, the Middle East<br />

and Europe.<br />

In the coming decades the energy demand in the MENA<br />

region will increase rapidly. The development of renewable<br />

energies and the necessary infrastructure will not only help to<br />

fulfil this demand but also encourage a diminished dependency<br />

on fossil and nuclear energy sources and enhance overall<br />

energy security. Furthermore, the energy produced may be<br />

exported. This can lead to economic growth and prosperity in<br />

the entire region. With the creation of local industries, jobs and<br />

knowledge transfer the Desertec vision will positively influence<br />

the producing countries socio-economically.<br />

Europe will not only be able to reduce its dependency on<br />

non-sustainable energy resources and avoid carbon emissions,<br />

but will also achieve its renewable energy targets by importing<br />

power from the deserts. A real energy partnership between the<br />

EU and MENA regions will consolidate political stability and<br />

present various investment opportunities.<br />

Morocco<br />

Of all countries that are suitable as locations for the first reference<br />

project, Morocco stands to the fore as a power grid connection<br />

already exists between Morocco and Spain. In June<br />

2011, the Moroccan Agency for Solar <strong>Energy</strong> (Masen) and Dii<br />

signed a Memorandum of Understanding on a cooperation<br />

project, the aim of which is the development of a large solar<br />

project in Morocco. Masen will act as project developer and<br />

manage the overall process locally, in particular the project<br />

requirements definition and location identification. The industrial<br />

consortium, acting as enabler, will provide its expertise to<br />

develop a feasible business case for the planned solar project.<br />

This will include the preparation of economic and regulatory<br />

conditions for the export of electricity from the deserts to<br />

Europe and also the promotion of the planned solar project in<br />

the EU and among governments and institutions that have a<br />

long term interest in desert power.<br />

The first pilot project to be implemented within the framework<br />

of this partnership will be a solar plan of 500 megawatts<br />

(MW) with 400 MW of concentrated solar power with the<br />

remaining 100 MW reserved for photovoltaic. To demonstrate<br />

the power supply coverage potential: estimations show that<br />

80 % of the 500 MW pilot plant could supply electricity to<br />

approx. 400,000 German households and the remaining 20 %<br />

could supply the majority of Moroccan homes. In theory, the<br />

electricity from the pilot project will be transported from<br />

Morocco to Spain and from Spain to other countries in the EU.<br />

This will allow experts to verify the opportunity to export the<br />

energy to Europe. The pilot project will require approx. 2 billion<br />

Euros from both public funding and private investments.<br />

The first desert power could be delivered to Europe in 2014.


Tunisia<br />

Earlier this year, first steps were taken to facilitate the implementation<br />

of the Desertec vision in Tunisia. STEG Energies<br />

Renouvables, together with Dii, have initiated a pre-feasibility<br />

study of extensive solar and wind energy projects in Tunisia.<br />

Technical and regulatory prerequisites, necessary for both local<br />

energy consumption and the export of electricity to neighbouring<br />

countries, will be reviewed. The study will also review the<br />

financing of a possible reference project in Tunisia together with<br />

EU member states, the Tunisian government, local and European<br />

industries. Furthermore, the industrial consortium has<br />

opened an office in Tunisia, headed by Mr. René Buchler, in order<br />

to facilitate a closer working relationship with North Africa.<br />

Key future challenges<br />

“Europe has finally acknowledged North Africa as its neighbour.”<br />

Paul van Son, CEO of Dii.<br />

One of the major challenges in the future will be to build partnerships<br />

across the entire EU-MENA region and to guide and<br />

drive developments in collaboration with local authorities.<br />

These partnerships are essential to the successful building of a<br />

reliable and sustainable energy supply. They will allow European<br />

and Arab partners to share resources and know-how,<br />

define common interests and closely link policies to overcome<br />

the energy challenges.<br />

Storage and concentrated solar technologies must be further<br />

developed and improved in order to achieve the optimal level<br />

of power generation in the deserts. Public acceptance of the<br />

necessary infrastructure projects is also a vital factor to the success<br />

of the Desertec vision in the entire EU-MENA region.<br />

Regarding the transmission of this desert power, the main<br />

challenges facing us will be the installation of a supergrid as<br />

well as the securing of a financial and regulatory framework for<br />

HVDC (high voltage direct current). The circulation of accurate<br />

information concerning mid- and long term electricity generation<br />

plans will also be required in order to plan the relevant<br />

transmission investments.<br />

Political challenges such as the implementation of the EU<br />

Renewable <strong>Energy</strong> Directive framework into national legislation<br />

must be overcome. In addition to this, a review of existing<br />

renewable energy development support schemes should be<br />

carried out in order to ensure that the optimal incentives for<br />

said development are in place.<br />

Finally, from a financial point of view, it is essential to<br />

ensure maximum use of the existing and appropriate financial<br />

tools in order to reduce costs, set up adequate frameworks and<br />

regulations to encourage private investments, and identify<br />

realistic costs and revenues.<br />

Type of technologies considered for the first reference project.<br />

Source: Abb<br />

Paul van Son, CEO of Dii<br />

Special Topics | Building a Sustainable <strong>Energy</strong> Future<br />

106 | 107


Left to right: Mr. Al-Mikhlafi | Secretary General <strong>Ghorfa</strong>,<br />

H. E. Al-Ghanim | President, Kuwait Chamber of Commerce and Industry,<br />

H. E. Prof. Dr. med. Shobokshi | Ambassador of the Kingdom of Saudi Arabia<br />

and Doyen of the Arab Diplomatic Corps and Dr. Bach | President <strong>Ghorfa</strong><br />

H. E. Dr. Saleh Hussein Alawaji |<br />

Chairman of the Board, Saudi Electricity Company<br />

List of Contributors<br />

From left to right: H. E. Ali M. Thunyan Al-Ghanim | President, Kuwait Chamber<br />

of Commerce and Industry, H. E. Mohamad Ahmed Al-Mahmood |<br />

Ambassador of the United Arab Emirates, H. E. Dr. Zeinab Al-Qasmiah |<br />

Ambassador of the Sultanate of Oman, Mr. Nabil R. Kuzbari |<br />

Vice President of the Arab-Austrian Chamber of Commerce and Industry<br />

H. E. Amr Moussa | Former Secretary General of the Arab League discussing<br />

with exhibitors at the 1 st German-Arab <strong>Energy</strong> Forum


<strong>Ghorfa</strong> Arab-German Chamber<br />

of Commerce and Industry<br />

Building Bridges between Germany<br />

and the Arab World<br />

About us<br />

The <strong>Ghorfa</strong> Arab-German Chamber of Commerce and Industry<br />

is the competence centre for business relations between Germany<br />

and the Arab world. It was founded in 1976 on the initiative<br />

of Arab as well as German decision-makers and since 1<br />

August 2000, it is located in Berlin. The Board of Directors and<br />

the Executive Board equally consist of German and Arab members.<br />

This guarantees balance and mutual trust. Not only major<br />

German and Arab enterprises are among our members, numerous<br />

small and medium-sized enterprises complete our topclass<br />

network.<br />

Our network<br />

The <strong>Ghorfa</strong> operates under the umbrella of the General Union<br />

of Chambers of Commerce, Industry and Agriculture for Arab<br />

Countries and acts as the official representative of all Arab<br />

Chambers of Commerce and Industry in Germany. Our chamber<br />

works closely with the Arab embassies in Germany, the<br />

Arab League and related governmental bodies in the Arab<br />

states. It is part of the worldwide organisation of Arab foreign<br />

Chambers of Commerce and Industry. The <strong>Ghorfa</strong> cooperates<br />

with German governmental bodies on federal and regional<br />

level and the most important German industrial associations.<br />

What we do<br />

We actively promote and strengthen business relationships<br />

among our members and within the wider Arab and German<br />

business community. We pave the way for stronger business<br />

cooperation in the fields of trade, industry, finance and investment<br />

between Arab and German business partners. Strategic<br />

partnerships based on mutual benefit and understanding create<br />

new business opportunities to facilitate economic benefits<br />

for both sides. We therefore mainly focus on networking, communication<br />

and on providing information about relevant economic<br />

and industrial developments.<br />

Networking<br />

– Quick access to decision-makers from industry and politics<br />

– Organisation of delegation visits<br />

– Organisation of events, conferences and further contact<br />

platforms (e. g. German-Arab Business, <strong>Energy</strong>, Tourism,<br />

Health, Education and Vocational Training)<br />

– <strong>Ghorfa</strong> joint booths at major Arab and German trade fairs<br />

– Promoting member services and products to a wider business<br />

community<br />

Consulting<br />

– Connecting with matching business partners<br />

– General and business-related intercultural consulting<br />

– Country and branch specific analysis<br />

– Mediation and arbitration in cases of business disputes<br />

– Advice and guidance through the multitude of offers and<br />

competing products on the German and Arab market<br />

– Comprehensive and detailed market information about<br />

Germany and the 22 Arab states<br />

– Visa support<br />

Information<br />

– Early information about projects and tenders<br />

– Monthly issued Arabic and German newsletters<br />

– Quarterly bilingual business magazine SOUQ<br />

– Arab-German Trade Directory providing over 6,000 yearly<br />

updated company profiles<br />

– Arab-German Yearbooks that focus on industry-sector specific<br />

topics<br />

– Information on the latest economic developments, markets<br />

and sectors, legal and political background<br />

We welcome you to become part of the high-level network that<br />

we provide for professionals and business leaders from the Arab<br />

world and Germany. Join us and share our vision of prospering<br />

Arab-German business relations. For further information concerning<br />

membership in our chamber please contact us:<br />

<strong>Ghorfa</strong><br />

Arab-German Chamber of Commerce and Industry e. V.<br />

Garnisonkirchplatz 1, 10178 Berlin, Germany<br />

Phone: +49 30 278907 – 0 | Fax: +49 30 278907 – 49<br />

ghorfa@ghorfa.de | www.ghorfa.de<br />

H. E. Dr. h. c. Otto Schily | Former German Interior Minister<br />

in conversation<br />

List of Contributors<br />

108 | 109


Alstom Power<br />

Alstom is a global leader in the world of power generation and transmission<br />

and rail infrastructure. Alstom builds the fastest train and the highest capacity<br />

automated metro in the world, provides turnkey integrated power plant<br />

solutions and associated services for a wide variety of energy sources,<br />

including hydro, nuclear, gas, coal and wind, and it offers a wide range of<br />

solutions for power transmission, with a focus on smart grids.<br />

Project:<br />

Contact:<br />

Shoaiba Stage III<br />

Nader Abdellatif | Country President Saudi Arabia<br />

ALSTOM Saudi Arabia Transport & Power<br />

Platinum Building, 6th Floor, Sitten Street, Malaz Area, Riyadh<br />

11466, Saudi Arabia<br />

nader.abdellatif@crn.alstom.com | www.alstom.com<br />

Amereller Legal Consultants – Mena Associates<br />

Amereller Legal Consultants are a law firm specialised in business law in the<br />

MENA region with offices in Cairo, Damascus, Dubai, Baghdad, Erbil and Basra.<br />

In Germany, the firm has offices in Munich and Berlin. Amereller advises<br />

multinational companies, international organisations and leading Arab<br />

businesses on investments across the MENA region. For a long time,<br />

investments in renewable energies and climate change have been a focus of<br />

Amereller and lawyers of the firm are called regularly to advise on energy law<br />

and policy in the region.<br />

Project: Renewable <strong>Energy</strong> Finance –<br />

Bringing the Private Sector in<br />

Contact: Dr. Kilian Bälz | Attorney<br />

Amereller Legal Consultants<br />

21 Soliman Abaza, Mohandesseen, Cairo, Egypt<br />

Phone: +20 2 37 62 62 01 | Mobile: +20 166 92 26 98<br />

kb@amereller.com | www.amereller.com<br />

Arab Union of Electricity (AUE)<br />

Arab Union of Electricity (AUE)<br />

AUE was established in 1987. Active members: 29, represent electricity<br />

ministries and utilities in the Arab Countries, and 20 Associate members in<br />

addition to 2 observing members. AUE aims at developing and improving the<br />

generation, transmission and distribution of electrical <strong>Energy</strong> in the Arab<br />

world and fosters cooperation and coordination among its members in the<br />

fields of development, improvement and integration of the electricity sector.<br />

Project:<br />

Contact:<br />

Electricity Interconnection <strong>Projects</strong> among Arab Countries<br />

Fawzi Kharbat | Engineer, Secretary General<br />

Arab Union of Electricity<br />

P. O. Box 2310, Amman 11181<br />

Phone: +962 6 581 91 64<br />

fkharbat@nepco.com.jo | www.Auptde.org<br />

Babcock Borsig Steinmüller GmbH (BBS) is a subsidiary of Bilfinger Berger<br />

Power Services GmbH. It is one of the leading services providers for the power<br />

generating industry. Its activities focus on engineering-based power plant<br />

services and project business. The service concept of BBS combines a wide<br />

product and service range for every area of power plant technology. Babcock<br />

Borsig Steinmüller currently has approximately 1,000 employees worldwide.<br />

Babcock Borsig Steinmüller (BBS)<br />

Project:<br />

Contact:<br />

Efficiency improvements using heat recovery systems<br />

for conventional power plants<br />

Dipl. Ing. Frank Adamczyk | Head of Heat Recovery Department<br />

Babcock Borsig Steinmüller GmbH<br />

Duisburger Straße 375, 46049 Oberhausen, Germany<br />

Phone: +49 208 45 75 79 70<br />

frank.adamczyk@bbs.bilfinger.com | www.bbs.bilfinger.com<br />

Bollinger + Grohmann Ingenieure is a Frankfurt based engineering consultancy<br />

with more than 25 years experience and expertise in structural engineering<br />

and design. Founded in 1983, today Bollinger + Grohmann has 100 employees<br />

in four European offices and one office in Australia. They provide a complete<br />

range of structural design services for clients and projects worldwide. For years<br />

Bollinger + Grohmann has been collaborating successfully with numerous<br />

internationally recognised architects and strives to always provide the best<br />

solution through their creativity and technical excellence.<br />

Bollinger + Grohmann<br />

Project:<br />

Contact:<br />

Sheikh Zayed Desert Learning Centre, Al Ain,<br />

United Arab Emirates (UAE)<br />

King Fahad National Library, Riyadh, Saudi Arabia<br />

Competition – Place Lalla Yeddouna, Medina, Fès, Morocco<br />

Dr.-Ing. Lamia Messari-Becker | Head of Sustainability<br />

and Building Performance<br />

Bollinger + Grohmann<br />

Westhafenplatz 1, 60327 Frankfurt am Main, Germany<br />

Phone: +49 69 24 00 07–0 | Fax: +49 69 24 00 07–30<br />

office@bollinger-grohmann.de | www.bollinger-grohmann.de<br />

Caparol LLC<br />

Caparol manufactures high quality coatings and thermal insulation systems. It<br />

is the market leader in Germany and Austria and is the third largest paint<br />

manufacturer in Europe. Caparol was established in Dubai in 1998 and<br />

manufactures a full range of products locally. Recent successful projects in the<br />

U.A.E. include the installation of thermal insulation solutions at the Sofitel and<br />

Ritz Carlton Hotels, launch of a low VOC paint and a colour scheme for the<br />

Jumeirah Golf Estates project.<br />

Project:<br />

Contact:<br />

Thermal Insulation at the SOFITEL Hotel,<br />

Jumeirah Beach Residence, Dubai<br />

Ahmed El Bayaa | Regional Sales Manager<br />

Caparol LLC<br />

P. O. Box 62182, Dubai, United Arab Emirates<br />

Phone: +971 4 347 35 38 | Fax: +971 4 347 42 56<br />

ahmed.bayaa@caparol.ae | www.caparol.com


CUBE Engineering GmbH<br />

Project:<br />

Contact:<br />

Wind energy in Libya<br />

Stefan Chun | General Manager<br />

CUBE Engineering GmbH<br />

Breitscheidstraße 6, 34119 Kassel, Germany<br />

Phone: +49 561 28 85 73 – 0 | Fax +49 561 28 85 73 – 19<br />

kassel@cube-engineering.com | www.cube-engineering.com<br />

Since the last 20 years CUBE Engineering has brought its professional services<br />

to bear on more than 3,000 renewable energy projects in 48 countries with a<br />

combined output in excess of 10 GW. Our services include management<br />

consulting, wind assessment, planning and project management,<br />

environmental assessment, electrical grid and networks, decentralized energy<br />

systems and solar assessment.<br />

Deutsches Elektronen-Synchrotron (DESY)<br />

Project:<br />

Contact:<br />

Euro-Mediterranean Partnership on Science and <strong>Energy</strong><br />

Stephan Haid | Project Manager<br />

Deutsches Elektronen-Synchrotron<br />

Notkestraße 85, 22607 Hamburg, Germany<br />

Phone: +49 40 89 98 25 22<br />

Stephan.Haid@desy.de | www.desy.de<br />

The Deutsches Elektronen-Synchrotron DESY is an internationally renowned<br />

centre for the investigation of the structure and function of matter. DESY is a<br />

member of the Helmholtz Association and stands for scientific expertise,<br />

excellent research infrastructure, and long lasting strategic collaborations with<br />

national and international research institutions.<br />

Dii GmbH<br />

Project:<br />

Contact:<br />

Building a sustainable energy future<br />

on the basis of the Desertec vision<br />

Sigrid Goldbrunner | Corporate Communication<br />

Dii GmbH<br />

Kaiserstraße 14, 80801 München, Germany<br />

Phone: +49 89 340 77 05 – 61 | Fax: +49 89 340 77 05 – 11<br />

goldbrunner@dii-eumena.com | www.dii-eumena.com<br />

Founded in Munich in October 2009, Dii is an international industrial<br />

consortium which works towards creating the framework for the<br />

implementation of the Desertec vision in Europe, the Middle East and North<br />

Africa. As facilitator of the entire process, Dii aims to achieve three objectives<br />

these being the creation of a technological, economic, political and regulatory<br />

framework in order to attract investments, the initiation of selected reference<br />

projects to demonstrate feasibility and the development of a long term<br />

implementation concept by the year 2050 to guide investment and funding.<br />

Europoles GmbH & Co. KG<br />

Project:<br />

Contact:<br />

Market Introduction of Innovative Mast Solutions<br />

in the Middle East by Construction<br />

of Local Production Facilities in Nizwa, Oman<br />

Tobias Fersch | Head of Special <strong>Projects</strong><br />

Europoles GmbH & Co. KG<br />

Ingolstädter Straße 51, 92318 Neumarkt, Germany<br />

Phone: +49 9181 896 84 87 | Fax: +49 9181 896 14 19<br />

Mobile: +49 176 10 98 80 27<br />

tobias.fersch@europoles.com | www.europoles.com<br />

As market leader in Europe for poles, columns, towers, and other carrier<br />

systems Europoles supports companies throughout the world in solving their<br />

infrastructure and construction challenges with extra safety and quality.<br />

The long-established company, located in Bavaria, Germany, supplies standard<br />

and special solutions made of steel, concrete, and FRP, for medium-sized<br />

companies as well as for large corporate entities.<br />

Ferrostaal AG<br />

Project:<br />

Contact:<br />

Solar Thermal Power Plants – Egypt’s Kom Ombo and Others<br />

Gerret Kalkoffen | Head of Business Development Power & Solar<br />

Power & Solar<br />

Hohenzollernstraße 24, 45128 Essen, Germany<br />

Phone: +49 201 818 22 52 | Fax: +49 201 818 35 14<br />

gerret.kalkoffen@ferrostaal.com | www.ferrostaal.com<br />

Ferrostaal is a global provider of industrial services in plant construction<br />

and engineering. As a technology-independent system integrator, the company<br />

offers development and management of projects, financial planning,<br />

and construction services for turnkey installations in the segments of<br />

petrochemicals, power & solar and industrial plants.<br />

Fichtner GmbH & Co. KG<br />

Project:<br />

Contact:<br />

Qatar grid expansion<br />

Mansour Hamza | Managing Director<br />

Fichtner GmbH & Co. KG<br />

Sarweystraße 3, 70191 Stuttgart, Germany<br />

Phone: +49 711 89 95 – 0 | Fax: +49 711 89 95 – 459<br />

Mansour.Hamza@fichtner.de | Phone: +49 711 89 95 –712<br />

info@fichtner.de | www.fichtner.de<br />

With over 1,800 employees Fichtner offers engineering and consultancy<br />

services worldwide in the field of thermal power plants, renewable energies,<br />

energy transmission and distribution, energy efficiency, energy economy,<br />

waste management, environmental management, environmental protection<br />

technologies, climate protection, water supply and sanitation, hydraulic<br />

engineering, transportation as well as business consulting and IT consultancy.<br />

List of Contributors<br />

110 | 111


With over 1,800 employees Fichtner offers engineering and consultancy<br />

services worldwide in the field of thermal power plants, renewable energies,<br />

energy transmission and distribution, energy efficiency, energy economy,<br />

waste management, environmental management, environmental protection<br />

technologies, climate protection, water supply and sanitation, hydraulic<br />

engineering, transportation as well as business consulting and IT consultancy.<br />

Fichtner GmbH & Co. KG<br />

Project:<br />

Contact:<br />

Shams One 100 MW concentrated solar plant<br />

Mansour Hamza | Managing Director<br />

Fichtner GmbH & Co. KG<br />

Sarweystraße 3, 70191 Stuttgart, Germany<br />

Phone: +49 711 89 95 – 0 | Fax: +49 711 89 95 – 459<br />

Mansour.Hamza@fichtner.de | Phone: +49 711 89 95 –712<br />

info@fichtner.de | www.fichtner.de<br />

First Solar GmbH<br />

First Solar manufactures solar modules with an advanced semiconductor<br />

technology and provides comprehensive photovoltaic (PV) system solutions.<br />

First Solar has an extensive track record of engineering procurement and<br />

construction for utility-scale PV power plants in desert regions. The company is<br />

delivering an economically viable alternative to fossil-fuel generation today.<br />

From raw material sourcing through end-of-life collection and recycling, First<br />

Solar is focused on creating cost-effective, renewable energy solutions that<br />

protect and enhance the environment.<br />

Project:<br />

Contact:<br />

The value of renewable energies in the MENA region<br />

Dipl. Ing. Karim Asali (MBA) | Technical Development Manager<br />

First Solar GmbH<br />

Rheinstraße 4B, 55116 Mainz, Germany<br />

Phone: +49 6131 14 43 – 215<br />

Kasali@firstsolar.com | www.firstsolar.com<br />

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ)<br />

GmbH<br />

Overall contact person: Dr. Nikolaus Supersberger | Senior Business<br />

Developer <strong>Energy</strong>, Internaional Services<br />

MED-ENEC<br />

<strong>Energy</strong> Efficiency in the Construction<br />

Sector in the Mediterranean<br />

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH<br />

Dag-Hammarskjöld-Weg 1 – 5, 65760 Eschborn, Germany<br />

Phone: +49 6196 79 30 20<br />

nikolaus.supersberger@giz.de | www.giz.de<br />

Through GIZ is (International Services)<br />

Project:<br />

Contact:<br />

MED-ENEC<br />

This project is funded by the European Union<br />

Florentine Visser | MED-ENEC Key Expert<br />

Through GIZ is (International Services)<br />

MED-ENEC II Project Office, 7 Tag El-Din El-Soubky Street,<br />

11631 Heliopolis, Cairo, Egypt<br />

Phone: +20 2 2418 15 78/9 (Ext. 108)<br />

florentine.visser@giz.de | www.med-enec.eu<br />

GIZ<br />

Working efficiently, effectively and in a spirit of partnership, the Deutsche<br />

Gesellschaft für Internationale Zusammenarbeit (GIZ) supports people and<br />

societies worldwide in creating sustainable living conditions and building<br />

better futures. In addition to the German Federal Government, GIZ also<br />

provides international clients with its expertise in terms of economic and<br />

result-oriented services.<br />

Project:<br />

Contact:<br />

Improvement of <strong>Energy</strong> Efficiency<br />

of the Water Authority of Jordan (IEE)<br />

Dieter Rothenberger | Head of the IEE Programme<br />

GIZ Office Amman<br />

P. O. Box 92 62 38, Amman 11190, HK of Jordan<br />

Phone: +962 6 56 86 96 – 0<br />

dieter.rothenberger@giz.de | www.giz.de<br />

ILF Consulting Engineers Germany<br />

ILF Consulting Engineers was founded in 1969 and has since then provided<br />

design, project management and construction supervision on more<br />

than 2000 projects world-wide. Having worked in 35 countries ILF ranks high<br />

among the international consultancy firms engaged in the energy and<br />

desalination industry.<br />

Project:<br />

Contact:<br />

Algerian desalination market update<br />

Thomas Altmann | Executive Vice President,<br />

<strong>Energy</strong> & Desalination<br />

ILF Beratende Ingenieure GmbH<br />

Werner-Eckert-Straße 7, 818129 Munich, Germany<br />

Phone: +49 89 255 59 41 30<br />

thomas.altmann@ilf.com | www.ilf.com


Kraftanlagen München GmbH<br />

Project:<br />

Contact:<br />

AlSol – Feasibility for a solar thermal tower power<br />

and gas turbine plant in Algeria<br />

Dipl.-Ing. Gerrit Koll | MBA, Sales and Business Development<br />

Manager <strong>Energy</strong> & Environment Technology<br />

Kraftanlagen München GmbH<br />

Ridlerstraße 31c, 80339 Munich, Germany<br />

Phone: +49 89 623 74 31<br />

kollg@ka-muenchen.de | www.ka-muenchen.de<br />

In Germany and Europe Kraftanlagen München GmbH (KAM) is a leading<br />

company for power plant and industrial plant construction. With several<br />

decades of experience in engineering, piping erection and turn-key power<br />

plant construction KAM provides complex solutions in the energy sector, with<br />

more than 2,000 staff members and a yearly turnover of more than € 360<br />

million. KAM offers a broad scope of services in the field of chemical- and<br />

petrochemical plants, piping systems in conventional and nuclear power plants<br />

and turn-key solutions for all kind of thermal power plants. For concentrating<br />

solar power plants KAM has developed the open volumetric receiver technology<br />

for solar tower power plants from laboratory to power plant scale<br />

implementation in Jülich. KAM offers own solutions for Heliostat Fields,<br />

Receiver and Hot Storage technology up to complete turn-key power plants.<br />

Lahmeyer International<br />

Project: Masdar’s 100 MW Noor 1 photovoltaic project<br />

Lahmeyer International<br />

Project:<br />

First Larger Scale Wind Park <strong>Projects</strong> in Sudan<br />

Lahmeyer International<br />

Project:<br />

Contact:<br />

The Naga Hammadi Barrage on the river Nile<br />

Ms. Sabine Wulf | Department Head Marketing and Business<br />

Development Coordination<br />

Lahmeyer International<br />

Friedberger Straße 173, 61118 Bad Vilbel, Germany<br />

Phone: +49 6101 55 – 0 | Fax: +49 6101 55 – 22 22<br />

info@lahmeyer.de | www.lahmeyer.de<br />

40 years of successful project development in Arab and Middle East countries,<br />

rendering engineering and consulting services in the fields of energy and<br />

hydropower and water resources, make us a reliable partner. The sound<br />

adjustment of conventional and new technologies with state-of-the-art knowhow<br />

is the key to preserve precious primary energy resources and the<br />

reasonable use of renewable energies.<br />

Masa GmbH<br />

Project:<br />

Contact:<br />

<strong>Energy</strong> Efficiency with AAC Building Materials<br />

Dipl.-Wirtsch.-Ing. Peter Sommer | Marketing Director<br />

Masa GmbH<br />

Masa-Straße 2, 56626 Andernach, Germany<br />

Phone: +49 2632 92 92 – 0 | Fax: +49 2632 92 92 – 12<br />

info@Masa-group.com | www.Masa-group.com<br />

Masa GmbH, Germany, supplies machinery and plants for high capacity<br />

production of high quality concrete blocks, pavers and slabs as well as sand<br />

lime bricks and aerated autoclaved blocks. Masa offers services and support<br />

from design through manufacturing, assembly, commissioning, training,<br />

production, and service.<br />

Ministry of Water and Electricity<br />

Project:<br />

Contact:<br />

Market Development and Business Opportunities<br />

in the Power Sector of Saudi Arabia<br />

Saleh Hussein Alawaji, Ph. D. | Deputy Minister for Electricity,<br />

Ministry of Water and Electricity, Chairman of the Board,<br />

Saudi Electricity Company (SEC)<br />

Ministry of Water and Electricity, Kingdom of Saudi Arabia<br />

King Fahd Road, Saud Mall Center, Riyadh 11233<br />

Phone: +966 1 203 88 88 24 57, +966 1 205 66 66 | Fax: +966 1 205 27 49<br />

salawaji@mowe.gov.sa | info@mowe.gov.sa | www.mowe.gov.sa<br />

The rapid developing power sector in Saudi Arabia creates great business<br />

opportunities for the local and foreign investors. The sector is interested in,<br />

and well prepared to build a long-term partnership with capable, qualified and<br />

reliable partners in order to cooperate for tackling the major challenges facing<br />

the sector. The German business community and industry are among the best<br />

candidates for this partnership.<br />

MWM GmbH<br />

Project:<br />

Contact:<br />

Decentralized Power Generation in Combination<br />

with Heat and Cold Supply<br />

Hans Peter Stoll | Head of Sales<br />

Africa/Middle East/India/Pakistan<br />

MWM GmbH<br />

Carl-Benz-Straße 1, 68167 Mannheim, Germany<br />

Phone: +49 621 384 – 0<br />

info@mwm.net | www.mwm.net<br />

The long-established company MWM in Mannheim, Germany, is one of the<br />

world‹s leading system providers of highly efficient and eco-friendly complete<br />

plants for decentralised power supply with gas and diesel engines.<br />

For 140 years, the company has stood for the reliable, uninterrupted provision<br />

of electricity, heat, and cooling at all times and at any location.<br />

MWM has 1,270 employees around the globe.<br />

List of Contributors<br />

112 | 113


Sa<strong>Energy</strong> Systems GmbH<br />

Sa<strong>Energy</strong> Systems GmbH was established to create alternatives for<br />

independent power generation based on renewable energy. The company’s<br />

focus is the reliable and efficient combination of wind and solar power with<br />

energy storage systems enabling the provision of affordable, sustainable<br />

electricity and water in remote areas, in disaster relief situations, or as power<br />

back-up systems.<br />

Project:<br />

Contact:<br />

“Power&Life Container”<br />

Klaus Naderer | Managing Director<br />

Sa<strong>Energy</strong> Systems GmbH<br />

Rungestraße 18, 10179 Berlin, Germany<br />

Phone: +49 30 200 03 94 – 80 | Fax: +49 30 200 03 94 – 89<br />

info@saenergy-systems.com | www.saenergy-systems.com<br />

Siemens Middle East<br />

Siemens <strong>Energy</strong> in the Middle East is a leading supplier of a complete<br />

spectrum of products, services and solutions for the generation, transmission<br />

and distribution of power and for the extraction, conversion and transport of<br />

oil and gas. Siemens is the only technology company to offer future proof<br />

solutions along the entire energy conversion chain. Not only has Siemens<br />

provided the technology behind many of the region‹s key infrastructure<br />

projects, the company also continuously strengthens the long term<br />

commitment to the region with significant investments to industry and<br />

education as well as involvement in corporate social responsibility projects.<br />

Project:<br />

Contact:<br />

Smart grids for a cleaner future<br />

Dietmar Siersdorfer | CEO <strong>Energy</strong> Sector, Middle East<br />

Siemens Middle East<br />

Siemens LLC<br />

Siemens Building, Dubai Internet City, P. O. Box 2154, Dubai, UAE<br />

Phone: +971 4 366 00 00 | Fax: +971 4 366 05 00<br />

siemens.ae@siemens.com | www.siemens.com/entry/ae/en/


Imprint<br />

Editor<br />

<strong>Ghorfa</strong><br />

Arab-German Chamber of Commerce and Industry<br />

Garnisonkirchplatz 1, 10178 Berlin<br />

Phone: +49 30 27 89 07 – 0 | Fax: +49 30 27 89 07 – 49<br />

ghorfa@ghorfa.de | www.ghorfa.de<br />

Coordination<br />

Rafaela Rahmig | Head of Marketing/Business Development,<br />

<strong>Ghorfa</strong> Arab-German Chamber of Commerce and Industry<br />

Editorial Office<br />

Traudl Kupfer | Proofreading/Translation/Editing<br />

Choriner Straße 52, 10435 Berlin<br />

Phone: +49 30 24 35 28 05 | Fax: +49 30 24 35 28 06<br />

Mobil: +49 171 203 30 30<br />

info@traudl-kupfer.de | www.traudl-kupfer.de<br />

Layout and Typesetting<br />

doppelpunkt Kommunikationsdesign GmbH<br />

Lehrter Straße 57, 10557 Berlin<br />

Phone: +4930 39 06 39 – 30 | Fax: +49 30 39 06 39 – 40<br />

mail@doppelpunkt.com | www.doppelpunkt.com<br />

Print<br />

DCM – Druck Center Meckenheim GmbH<br />

Werner-von-Siemens-Straße 13, 53340 Meckenheim<br />

Phone: +49 2225 88 93 – 550 | Fax: +49 2225 88 93 – 558<br />

dcm@druckcenter.de<br />

Copyrights of the images<br />

Cover: © mauritius images/age<br />

Page 9: Oil 8 © iStockphoto.com, Dan Bannister<br />

Page 27: Solar Panels Out in the Desert<br />

© iStockphoto.com, Skip ODonnell<br />

Page 53: <strong>Energy</strong>, power in the Qatar desert<br />

© iStockphoto.com/Paolo Gualdi<br />

Page 54: Kindly provided by Lahmeyer International<br />

Page 69: Environment © iStockphoto.com/Gilles Lougassi<br />

Page 89: Futuristic Greenhouse in Desert<br />

© iStockphoto.com/Mike Kiev<br />

Page 93: pixelio.de/Sven Huxal<br />

Page 95: pixelio.de/Cornerstone<br />

Page 97 : Kindly provided by Lahmeyer International<br />

Other pictures: Kindly provided by the contributing<br />

companies, if not otherwise stated<br />

October 2011<br />

Imprint<br />

114 | 115

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