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Ust Ilimsk Hydroelectric Power Station

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Opening date  1974
Impounds  Angara River
Phone  +7 395 359-58-59
Owner  Irkutskenergo
Type of dam  Concrete, gravity
Height  105 m (344 ft)
Create  Embalse de Ust-Ilimsk
Construction began  1963
Ust-Ilimsk Hydroelectric Power Station
Official name  Ust-Ilimsk Hydroelectric Power Station
Location  Ust-Ilimsk, Irkutsk Oblast, Russia
Address  г.Усть-Илимск, Irkutsk Oblast, Russia, 666652
Similar  Bratsk Hydroelectric Power St, Irkutsk Hydroelectric Power St, Boguchany Dam, Krasnoyarsk Dam, Zeya Dam

The Ust-Ilimsk Hydroelectric Power Station (Ust-Ilimsk HPS) is a concrete gravity dam on the Angara River and adjacent hydroelectric power station. It is located near Ust-Ilimsk, Irkutsk Oblast in Russia and is the third and last dam on the Angara cascades. Construction on the dam began in 1963, its reservoir began filling in 1974 and its power plant was commissioned in 1980.

Contents

Background

Between 1951 and 1955, construction of the Ust-Ilimsk HPS was designated as a priority and in September 1960, the State Commission determined the most suitable spot for the dam. It would be constructed on the Angara River, 20 km (12 mi) below the mouth of the Ilim River. Gidroproekt All-Union Design and Exploratory Institute produced the design of the HPS and on June 8, 1962, the Central Committee of the CPSU and Ministerial Council of the USSR determined the schedule of construction and the project's scope.

Construction

Construction on Stage I of the HPS began in 1963. This included preparing the dam's foundation, various construction facilities and 220 kV power lines. In addition, the village of Ust-Ilimsk was created as well to support workers on the project. By 1966, the Bratsk-Ust-Ilimsk motorway was opened to traffic and in March of that year, construction began on the actual power plant. On April 22, 1968, the first concrete was poured into the dam's foundation and by October 3, 1974, the dam began to inundate the Angara River, creating its reservoir. The dam was accepted for industrial operation in 1980.

Generation

By 1981, the HPS had generated its first 100 billion kWh which had doubled by 1986 and doubled again by 1995 with 400 billion kWh. By October 1, 2005, it had produced 600 billion kWh of electricity. For comparison, in 2008, U.S. residential and commercial sectors consumed about 517 billion kWh for lighting. On average, the station produces 21.7 billion kWh annually and utilizes its installed capacity for 5,050 hours out of 8,760 a year.

Specifications

The main dam is 1,475 m (4,839 ft) long and 105 m (344 ft) high with a spillway of 242 m (794 ft) in length. It is flanked by two earth-fill auxiliary dams, the one on its left (west) bank that is 1,710 m (5,610 ft) long and 28 m (92 ft) high. On the right (east) bank, the auxiliary dam is 538 m (1,765 ft) long and 47 m (154 ft) high. The power station is located on the right (east) bank and is 440 m (1,440 ft) long and houses 16 turbines with an installed capacity of 3,840 MW. The power station is designed to support another two turbines which, if installed, would bring its capacity up to 4,320 MW.

References

Ust-Ilimsk Hydroelectric Power Station Wikipedia


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