Energy Projects - Ghorfa
Energy Projects - Ghorfa
Energy Projects - Ghorfa
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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 />
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the most damaging as burning coal releases the highest levels<br />
of pollutants and greenhouse gases into the atmosphere.
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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 />
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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 />
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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 />
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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 />
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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 />
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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-
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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 />
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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