Xiangshuijian Pumped Storage Power Station

Xiangshuijian Pumped Storage Power Station
Location of Xiangshuijian Pumped Storage Power Station in China
Country China
Location Sanshan District, Wuhu City, Anhui Province
Coordinates 31°6′47.92″N 118°17′28.43″E / 31.1133111°N 118.2912306°E / 31.1133111; 118.2912306Coordinates: 31°6′47.92″N 118°17′28.43″E / 31.1133111°N 118.2912306°E / 31.1133111; 118.2912306
Status Operational
Construction began 2006
Commission date 2011-2012
Operator(s) State Grid Xinyuan Co Ltd
Pumped-storage power station
Upper reservoir Xiangshuijian Upper
Upper res. capacity 17,480,000 m3 (14,170 acre·ft)
Lower reservoir Xiangshuijian Lower
Lower res. capacity 14,350,000 m3 (11,630 acre·ft)
Hydraulic head 363 m (1,191 ft)
Pump-generators 4 x 250 MW (340,000 hp) Francis pump turbines
Power generation
Nameplate capacity 1,000 MW (1,300,000 hp)
Annual generation 1.8 billion kWh

The Xiangshuijian Pumped Storage Power Station is a pumped-storage hydroelectric power station located 29 kilometres (18 mi) southwest of Wuhu City in Sanshan District of Anhui Province, China. Construction on the power station began on 8 December 2006 and the upper reservoir dam was completed in October 2010. The first unit was commissioned on 1 December 2011 and the last on 17 November 2012. The power station operates by shifting water between an upper and lower reservoir to generate electricity. The lower reservoir was formed with the creation of the Xiangshuijian Lower Dam in a valley. The Xiangshuijian Upper Reservoir is in another valley above the west side of the lower reservoir. During periods of low energy demand, such as at night, water is pumped from Xiangshuijian Lower Reservoir up to the upper reservoir. When energy demand is high, the water is released back down to the lower reservoir but the pump turbines that pumped the water up now reverse mode and serve as generators to produce electricity. The process is repeated as necessary and the plant serves as a peaking power plant.[1]

The lower reservoir is created by a 21.5 metres (71 ft) tall circular dam. It holds up to 14,350,000 cubic metres (11,630 acre·ft) of water. The upper reservoir is created by a 89.5-metre (294 ft) tall and 530-metre (1,740 ft) long concrete-face rock-fill dam. It can withhold up to 48,510,000 cubic metres (39,330 acre·ft) of water. Water from the upper reservoir is sent to the 1,000 megawatts (1,300,000 hp) underground power station down near the lower reservoir through headrace/penstock pipes. The drop in elevation between the upper and lower reservoir affords a hydraulic head (water drop) of 363 metres (1,191 ft).[2][3]

See also

References

  1. ↑ "Anhui Xiangshuijian pumped storage power station put into operation all four units (Figure)" (in Chinese). Polaris Power Network News. 18 November 2012. Retrieved 15 July 2014.
  2. ↑ "Pumped-Storage Hydroelectric Plants in China". IndustCards. Retrieved 15 July 2014.
  3. ↑ "Anhui Xiangshuijian Pumped Storage Power Station". Shanghai Investigation and Dseign Institute. Retrieved 15 July 2014.
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