Jinping-II Dam
Dam in Sichuan, China / From Wikipedia, the free encyclopedia
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The Jinping-II Dam (simplified Chinese: 锦屏二级水电站; traditional Chinese: 錦屏二級水電站; pinyin: Jǐnpíng Èrjí Shuǐdiàn Zhàn), also known as the Jinping-II Hydropower Station, is a gravity dam on the Jinping Bend of the Yalong River (Yalong Jiang) in Sichuan, China. Construction on the project began in 2007 and it was complete in 2014. Its hydroelectric power station has a 4,800 MW installed capacity.
Jinping-II Dam | |
---|---|
Official name | Jinping-II Hydropower Station |
Location | Yanyuan County and Muli Tibetan Autonomous County, Sichuan, China |
Coordinates | 28°14′54.02″N 101°38′39.94″E |
Purpose | Power |
Status | Operational |
Construction began | 2007 |
Opening date | 2014 |
Owner(s) | Yalong River Hydropower Development Company, Ltd. |
Operator(s) | MWREP |
Dam and spillways | |
Impounds | Yalong River |
Height | 37 m (121 ft) |
Length | 162 m (531 ft) |
Reservoir | |
Creates | Jinping-II Reservoir |
Total capacity | 14,280,000 m3 (11,580 acre⋅ft) |
Active capacity | 5,020,000 m3 (4,070 acre⋅ft) |
Catchment area | 102,663 km2 (39,638 sq mi) |
Jinping-II Hydropower Station | |
Coordinates | 28°08′17.05″N 101°47′31.30″E |
Commission date | 2012–2014 |
Hydraulic head | 310 m (1,020 ft) |
Turbines | 8 × 600 MW Francis-type |
Installed capacity | 4,800 MW |
While Jinping-I relies on a conventional tall dam and large reservoir to supply water, Jinping-II uses a much smaller dam, located 7.5 km downstream of Jinping-I, to divert water into four 16.6 km long headrace tunnels. These tunnels connect to a downstream point on the same river at a much lower elevation, providing a 310 m (1,020 ft) head of water[1] without flooding a large area of land.