FEASIBILITY STUDY FOR REHABILITATION OF THE KAIRAKKUM HYDROELECTIC POWE PLANT ON THE SYR DARYA RIVER
Kairakkum HPP was built in 1956 on the Syr-Darya River, about 10 km east of city of Khujand. It consists of a hydroelectric plant, dam, spillway and reservoirfor seasonal regulation of water for irrigation needed for cotton fields in the Fergana Valley, as well as for generating electricity. The capacity of this HPP--the only electricity-generating facility in northern Tajikistan--is insufficient to meet electricity needs.
The Kairakkum HPP dams the Syr Darya to form the Kairakkum Reservoir. At the normal water level (375.50 m above the sea level) the reservoir is ~ 65 km in length and 8-20 km in width, with gross storage capacity of 3,413.5 million m3 and effective storage capacity of 2,743 million m3. The dam consists of two parts: the hydraulic-fill/earth and rock dam totalling 1,202 m in length and a concrete dam 130 m in length . The concrete part of the dam includes power plant and spillways.
To improve the station, our Feasibility Study recommends new, high-efficiency Kaplan turbines, fitted to new six 30.6 MW generators, which will utilize a design head greater than the original design.
This Feasibility Study accomplished the following:
1. Reviewed and assessed the conditions of Kairakkum Hydroelectric Power Plant on Syr Darya River; confirmed the market potential for energy production.
2. Refined the project concept, including selection of new equipment, sizing of new equipment, energy generation capacity, operating practices of the facilities, IMES and spare parts required for optimal reliability; prepared a detailed construction cost estimate and schedule based on price quotes from manufacturers of major equipment and from experience data suitable for use in balance of plant equipment.
3. Evaluated the investment opportunity in terms of its positioning in the least-cost-generating expansion plan for Tajikistan and with regard to multilateral and bilateral financing for public infrastructure projects.
4. Undertook an Environmental Impact Assessment (EIA) suitable for assessment of feasibility (a more detailed EIA required during project implementation).
5. Prepared Feasibility Level project design, including completion of representative drawings and equipment selections. This design will be the basis of the Tender Design and will represent the projects selected for financing.
6. Completed financing analysis and project evaluation needed as a basis for project financing; prepared complete technical specifications for all project equipment in a manner suitable for bidding; prepared all bid documents that the client will require for bidding the project under EPC concept.
7. Prepared a Financial Memorandum suitable for presentation to multilateral banks.