Shisanling Pumped Storage Power Station
The Shisanling Pumped Storage Power Station (十三陵抽水蓄能电厂) is a pumped-storage power station in Changping County of Beijing, China, near the Thirteen Tombs of the Ming Dynasty from where it got its name Shisanling, which means "thirteen tombs". The power station contains four reversible turbines for an installed capacity of 800 MW.
| Shisanling Pumped Storage Power Station | |
|---|---|
| Country | China |
| Location | Changping County, Beijing |
| Coordinates | 40°15′20″N 116°16′07″E |
| Status | Operational |
| Construction began | 1988 |
| Opening date | 1995 |
| Upper reservoir | |
| Creates | Shisanling Upper |
| Total capacity | 4,000,000 cubic metres (141,258,667 cu ft) (Normal) |
| Lower reservoir | |
| Creates | Shisanling Lower |
| Total capacity | 51,000,000 cubic metres (41,346 acre⋅ft) (Normal) |
| Power Station | |
| Hydraulic head | 430 metres (1,411 ft) |
| Pump-generators | 4 x 200 MW |
| Installed capacity | 800 MW |
| Annual generation | 1246 GWh |
Background
Planning and designs for the power station commenced in 1974 and in 1988, the National Electric Power Ministry and People's Government of Beijing decided to go forth with the project. Construction was initiated that year and by 1995, the first unit was in operation.[1]
Operation
Shisanling Dam
The Shisanling Dam creates the power station's lower reservoir and was an already existing dam. The earth-fill embankment dam is 29 metres (95 ft) high and 627 metres (2,057 ft) long. The dam creates a reservoir that can store 59,000,000 cubic metres (2.083565337×109 cu ft) of water and contains a controlled chute spillway.[2]
Upper reservoir
From the lower reservoir, water is pumped up into the upper reservoir which has a normal storage capacity of 51,000,000 cubic metres (41,346 acre⋅ft). The upper reservoir is artificial was built into the Mang mountain with the assistance of a 75 metres (246 ft) high and 550 metres (1,804 ft) long concrete-face rock-fill dam. When power is being generated, the water leaves the reservoir and falls through two penstocks down towards the power station which is underground and just above the lower reservoir. Before reaching the reversible turbines, the water branches off into four branch pipes.[2]
Power station
The four branch pipes feed water into the four turbines and after it generates power it is returned to the lower reservoir to repeat cycle when operating. Each reversible turbine has a 200 MW installed capacity. The turbines and generators are stored in an underground power house measuring 145 metres (476 ft) long, 23 metres (75 ft) wide and 46.6 metres (153 ft) high. .[2]
References
- Broch, Einar (1997). Hydropower '97. Taylor & Francis. pp. 138–139. ISBN 9789054108887.
- "Shisanling_Pumped Storage Power Station" (PDF). Chinese National Committee on Large Dams. Archived from the original (PDF) on 5 September 2011. Retrieved 4 January 2011.