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Xiangshuijian Pumped Storage Power Station
The Xiangshuijian Pumped Storage Power Station is a pumped-storage hydroelectric power station located 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.
The lower reservoir is created by a tall circular dam. It holds up to of water. The upper reservoir is created by a tall and long concrete-face rock-fill dam. It can withhold up to of water. Water from the upper reservoir is sent to the 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 .〔(【引用サイトリンク】 title=Pumped-Storage Hydroelectric Plants in China )〕〔(【引用サイトリンク】 title=Anhui Xiangshuijian Pumped Storage Power Station )〕
==See also==
*List of pumped-storage power stations
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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