| Jinping-I | |
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Rendition of the dam |
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| Official name | Jinping-I Hydropower Station |
| Location | Sichuan, China |
| Coordinates | |
| Construction began | 2005 |
| Opening date | 2014 |
| Dam and spillways | |
| Height | 305 m (1,001 ft) |
| Length | 568 m (1,864 ft) |
| Impounds | Yalong River |
| Reservoir | |
| Creates | Jinping-I Reservoir |
| Capacity | 7,700,000,000 m3 (6,200,000 acre·ft) |
| Catchment area | 102,560 km2 (39,600 sq mi) |
| Surface area | 82 km2 (32 sq mi) |
| Power station | |
| Turbines | 6 × 600MW |
| Installed capacity | 3,600 MW |
| Annual generation | 16-18 TWh |
The Jinping-I Hydropower Station (also known as the Jinping-I Dam, Jinping 1st Cascade or Jinping No.1 Hydraulic Power Station), is a large hydroelectric project on the "Jinping Bend" of the Yalong River (Yalong Jjiang) in Sichuan, China. Construction on the project began in 2005 and when complete, it will have a 3600 MW capacity to produce between 16 and 18 TW·h (billion kW·h) annually. Supplying the power station will be a reservoir created by a 305 m tall arch dam, soon to be the tallest in the world. The project's objective is to supply energy for expanding industrialization and urbanization, improve flood protection, and prevent erosion.
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Harnessing hydropower on the Jinping bend of the Yalong River has been in planning for decades. The length of bend is 150 km but the downstream part of the river on the opposite side is only separated by 16 km. Between that distance, there is an elevation drop of 310 m, creating an excellent situation for hydroelectricity production. Two projects were planned for the bend, the Jinping I and Jinping II with a combined capacity of 8,400 MW. Planning for the projects began in the 1960s under the former Sichuan and Shanghai design institutes along with the Ministry of Water Resources and Electric Power. They produced the "Reinvestigation Report on The Yalong River bend (Jinping)". In July 1965, the Jinping Hydropower Engineering Headquarters was set up and designs for the Jinping 1 and Jinping 2 would progress with the East China Investigation and Design Instititute .[1]
Construction began on 12 November 2005. Expectations are that power first will be generated in 2012 with the remainder of the work completed by 2014.
The Jinping 1 power station is on the border of the Yanyuan and Muli districts in the autonomous Liangshan Yi area of the Sichuan province. The Yalong River, which the dam will control, is the largest tributary of the Jinsha. For the project, approximately 7,500 inhabitants will be relocated.
The power station will be supplied with water from a 7.7 billion m3 reservoir created by a 305m tall, 568m long thin double-curvature arch dam made of 7.4 million m3 of material. The power station will contain six 600 MW Francis turbines. Water discharged from the power station can then be diverted by the Jinping 2 Dam to the Jinping 2 Hydropower Station.[2]
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