Nurek Dam
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The Nurek Dam (Template:Langx; Tajik: Нерӯгоҳи обии Норак, Nerūgohi obii Norak, Tajik for Nurek Hydro-electric Station) is an earth-fill embankment dam on the Vakhsh River in Tajikistan. Its primary purpose is hydroelectric power generation and its power station has an installed capacity of 3,015 MW. Construction of the dam began in 1961 and the power station's first generator was commissioned in 1972. The last generator was commissioned in 1979 and the entire project was completed in 1980 when Tajikistan was still a republic within the Soviet Union, becoming the tallest dam in the world at the time. At Template:Convert,[1][2][3] it is currently the second tallest man-made dam in the world, after being surpassed by Jinping-I Dam in 2013. The Rogun Dam, also along the Vakhsh in Tajikistan, may exceed it in size when completed.
Construction
The Nurek Dam was constructed by the Soviet Union between the years 1961 and 1980. It is uniquely constructed, with a central core of cement forming an impermeable barrier within a Template:Convert-high rock and earth fill construction.[1][2][3] The volume of the mound is 54 million m3. The dam includes nine hydroelectric generating units, the first commissioned in 1972 and the last in 1979.[2] An estimated 5,000 people were resettled from the dam's flooding area.[4]
The dam is located in a deep gorge along the Vakhsh River in western Tajikistan, about Template:Convert east of the nation's capital of Dushanbe. A town near the dam, also called Nurek, houses engineers and other workers employed at the dam's power plant.
Electricity generation
A total of nine Francis turbine-generators are installed in the Nurek Dam's power station. Originally having a generating capacity of 300 MW each (2,700 MW total), they were redesigned and retrofitted between 1984 and 1988 so now have a capacity of 335 MW each (3,015 MW total).[2] As of 1994, this formed most of the nation's 4.0 gigawatt hydroelectric generating capacity, which was adequate to meet 98% of the nation's electricity needs.[5] As of early 2024, it supplies 70% of Tajikistan's electricity.[6]
Reservoir
The reservoir formed by the Nurek Dam, known simply as Nurek, is the largest reservoir in Tajikistan with a capacity of 10.5 km3. The reservoir is over Template:Convert in length, and has a surface area of Template:Convert. The reservoir drives the hydroelectric plant located within the dam. Stored water is also used for irrigation of agricultural land. Irrigation water is transported 14 kilometers through the Dangara irrigation tunnel and is used to irrigate about Template:Convert of farmland. It is suspected that the reservoir may have caused induced seismicity when being impounded.[1]
References
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- Pages with script errors
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- Hydroelectric power stations in Tajikistan
- Lakes of Tajikistan
- Hydroelectric power stations built in the Soviet Union
- Dams completed in 1980
- Dams on the Vakhsh River
- Dams in Tajikistan
- Khatlon Region
- Energy infrastructure completed in 1979
- Earth-filled dams
- Districts of Republican Subordination
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