| Jinping-I Dam | |
|---|---|
  Location of Jinping-I Dam in Sichuan  Jinping-I Dam (China) | |
| Official name | Jinping-I Hydropower Station |
| Location | Yanyuan County and Muli Tibetan Autonomous County, Liangshan Prefecture, Sichuan, China |
| Coordinates | 28°10′58″N 101°37′51″E / 28.18278°N 101.63083°E |
| Purpose | Power |
| Status | Operational |
| Construction began | 2005 |
| Opening date | 2013 |
| Owner(s) | Yalong River Hydropower Development Company, Ltd. |
| Operator(s) | MWREP |
| Dam and spillways | |
| Type of dam | Arch, double-curvature |
| Impounds | Yalong River |
| Height | 305 m (1,001 ft) |
| Length | 568.6 m (1,865 ft) |
| Spillway type | Crest, bottom outlets, flood tunnel |
| Spillway capacity | Crest: 2,993 m3/s (105,700 cu ft/s) Bottom outlets: 5,465 m3/s (193,000 cu ft/s) Tunnel: 3,651 m3/s (128,900 cu ft/s) |
| Reservoir | |
| Creates | Jinping-I Reservoir |
| Total capacity | 7,760,000,000 m3 (6,290,000 acre⋅ft) |
| Active capacity | 4,910,000,000 m3 (3,980,000 acre⋅ft) |
| Catchment area | 102,560 km2 (39,600 sq mi) |
| Surface area | 82.55 km2 (31.87 sq mi) |
| Power Station | |
| Commission date | 2013–2014 |
| Turbines | 6 × 600 MW Francis-type |
| Installed capacity | 3,600 MW[1] |
| Annual generation | 16–18 TWh |
The Jinping-I Dam (simplified Chinese: 锦屏一级水电站; traditional Chinese: 錦屏一級水電站) also known as the Jinping-I Hydropower Station or Jinping 1st Cascade, is a tall arch dam on the Jinping Bend of the Yalong River (Yalong Jiang) in Liangshan, Sichuan, China. Construction on the project began in 2005 and was completed in 2014. Its power station has a 3,600 MW capacity to produce between 16 and 18 TW·h (billion kW·h) annually. Supplying the power station is a reservoir created by the 305-meter-tall arch dam, the tallest in the world. The project's objective is to supply energy for expanding industrialization and urbanization, improve flood protection, and prevent erosion.