Nuozhadu Dam (Chinese: 糯扎渡大坝; pinyin: Nuòzhādù Dàbà) is an embankment dam on the Lancang (Mekong) River in Yunnan Province in southwest China. The dam is 261.5 m (858 ft) tall, and creates a reservoir with a normal capacity of 21,749,000,000 m3 (17,632,000 acre⋅ft) at a level of 812 m (2,664 ft) asl. The purpose of the dam is hydroelectric power production along with flood control and navigation. The dam supports a power station with nine generators, each with generating capacity of 650 MW. The total generating capacity of the power station is 5,850 MW.[2] Construction on the project began in 2004; the dam's first generator went online 6 September 2012 and the last generator was commissioned in June 2014.[3][4] The construction and management of the project was implemented by Huaneng Power International Ltd., which has a concession to build, own and operate hydroelectric dams on China's stretch of the Mekong River.
| Nuozhadu Dam | |
|---|---|
 2D finite element meshes and measure points of Nuozhadu dam | |
  Location of Nuozhadu Dam in China | |
| Location | Puer, Yunnan Province |
| Coordinates | 22°39′22″N 100°25′06″E / 22.65611°N 100.41833°E |
| Status | Operational |
| Construction began | 2004 |
| Opening date | 2012 |
| Dam and spillways | |
| Type of dam | Embankment, central core, rock-fill |
| Impounds | Lancang (Mekong) River |
| Height | 261.5 m (858 ft) |
| Length | 608 m (1,995 ft) |
| Width (crest) | 18 m (59 ft) |
| Spillway type | Service, controlled side channel chute |
| Spillway capacity | 31,318 m3/s (1,106,000 cu ft/s) |
| Reservoir | |
| Creates | Nuozhadu Reservoir |
| Total capacity | 21,749,000,000 m3 (17,632,000 acre⋅ft) |
| Catchment area | 140,000 km2 (54,000 sq mi) |
| Surface area | 320 km2 (120 sq mi) |
| Power Station | |
| Commission date | 2012-2014 |
| Hydraulic head | 187 m (614 ft) |
| Turbines | 9 x 650 MW Francis-type |
| Installed capacity | 5,850 MW |
| Annual generation | 23,9 TWh[1] |
See also
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References
edit- ^ "Largest hydropower station on Mekong River starts operation - Xinhua | English.news.cn". Archived from the original on 2014-08-26. Retrieved 2014-08-27.
- ^ "Nuozhadu Hydropower Project" (PDF). Chinese National Committee on Large Dams. Retrieved 6 January 2011.
- ^ "Yunnan's largest hydroelectric dam goes online". Go Kunming. Archived from the original on 6 January 2019. Retrieved 15 May 2013.
- ^ Harris, Michael. "Last turbine unit in operation at Chian's 5,850-MW Huaneng Nuozhadu hydropower plant". Hydro World. Retrieved 19 November 2014.
- Zhang Zhonglan and Yuan Youren: Slope stability study and section optimization of Nuozhadu’s earth core rockfill dam, New Developments in Dam Engineering. Proceedings of the 4th International Conference on Dam Engineering, 18-20 October 2004, Nanjing, China[permanent dead link]
- Nuozhadu Hydropower Project - Excavation of the Underground Powerhouse Complex
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