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level of prices of electricity.<br />

Advantages:<br />

• Opportunity for local, regional and<br />

national development<br />

• Environmentally friendly structures with<br />

a long lifespan<br />

• Increased level of preparedness for increases<br />

in the consumption of electricity<br />

• Increased power supply reliability and<br />

independence<br />

• Increased stability of power system’s<br />

operation<br />

• New jobs during construction and in<br />

new power plants’ operation<br />

• Improved quality of life<br />

The construction of all five power plants will<br />

be taking place from 2002 to 2018, whereby<br />

the estimated time limit for the construction<br />

of each power plant is three and a half years.<br />

Boπtanj HPP (Boπtanj Hydropower Plant)<br />

At the section of the Sava River where it<br />

crosses the 46th parallel, in November<br />

2002 we started the construction of the<br />

first hydropower plant in a chain of powergenerating<br />

structures, which will improve<br />

Slovenia’s power supply.<br />

With the construction of Boπtanj HPP, as<br />

with other hydropower plants in the chain,<br />

special attention is aimed at flooding safety.<br />

The execution of flooding safety and harmful<br />

effect prevention measures is planned in<br />

cooperation with the Ministry of the Environment,<br />

Spatial Planning and Energy as<br />

well as the local community. We will make<br />

sure that the potential harmful waters are<br />

adequately drawn off, protect the Sava riverbanks<br />

with safety dykes, and ensure<br />

safe operations that do not interfere with<br />

the water regime. All the above-mentioned<br />

measures taken in the construction of the<br />

power-generating structures will improve<br />

the overall level of flooding safety in the<br />

Lower Sava River.<br />

Boπtanj HPP is a combined run-of-river<br />

storage hydropower plant featuring three<br />

bulb turbines with a total flow capacity of<br />

500 m 3 , five spillways with a total spilling<br />

capacity of 3,500 m 3 /s and an average annual<br />

output of 115 GWh.<br />

The power plant will basically be<br />

unmanned; it will be managed by the HPP<br />

chain’s remote control center. Only maintenance<br />

personnel will be operating at the<br />

location itself, performing their daily tasks<br />

and annual overhauls. These personnel will<br />

also be trained to take over the station’s<br />

management in case of problems in the<br />

remote control system.<br />

The construction of Boπtanj HPP will take<br />

42 months, which means that it will commence<br />

its operation in May 2006.<br />

Boπtanj HPP Basic Information<br />

Rated flow 500 m 3 /s<br />

Head<br />

8.20 m<br />

Rated Power<br />

32.5 MW<br />

Average annual production 115 GWh<br />

Useful reservoir volume 1,000,000 m 3<br />

Average annual flow 235 m 3 /s<br />

Estimated value of<br />

investment in<br />

power generation SIT 15.4 billion<br />

Estimated value of<br />

infrastructure investments<br />

(Republic of Slovenia<br />

as the investor) SIT 4.9 billion<br />

Infrastructure<br />

Management Program<br />

At the beginning of October 2002 HSE<br />

turned over the “Infrastructure Management<br />

Program” to the Ministry of<br />

the Environment, Spatial Planning and<br />

Energy for discussion and approval. The<br />

inter-sector work<strong>group</strong>, which was<br />

nominated by the Minister of Environment,<br />

Spatial Planning and Energy -<br />

Janez KopaË, M. Sc. was assembled<br />

for one session. The program was not<br />

yet approved and confirmed in 2002.<br />

Adjustments of activities regarding the<br />

value and financing sources for the construction<br />

of infrastructure will be finished<br />

during the first half of 2003.<br />

Building Permit for<br />

Preparatory Works (Lot A1)<br />

The building permit for preparatory<br />

works was issued on 15 November<br />

2002.<br />

Project Documentation<br />

A contract was signed with IBE for the<br />

execution of the following portions of<br />

the project documentation: PGD (construction<br />

works project), PZR (tender<br />

project) for construction works and<br />

major purchases of equipment (preparatory<br />

works, main construction works,<br />

accumulation tank works, supply of turbine<br />

and generator equipment, hydromechanical<br />

equipment and elevators)<br />

and PZI (execution project) for preparatory<br />

works.<br />

Project of Attaining the PGD (Construction<br />

Works Project) Building Permit<br />

Due to the inadmissibility of a tolerance<br />

in the Boπtanj HPP Location Plan<br />

we were forced to divide the PGD<br />

(Construction Works Project) into two<br />

parts: the power generation structure<br />

and the reservoir. The Construction<br />

Works Project for the power generation<br />

structure was prepared before<br />

the end of 2002, while the deadline for<br />

the preparation of the Reservoir<br />

Construction Works Project is September<br />

2003.<br />

35

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