Operation
The station is composed mainly of a lower and upper reservoir and and an underground power station. Water for the system is derived from the Liuxihe River. The lower reservoir has a capacity of 23,400,000 cubic metres (18,971 acre·ft) and is created by a 43.5 metres (143 ft) tall and 153.12 metres (502 ft) long gravity dam composed of roller-compacted concrete. Water from this reservoir is pumped into the upper reservoir which is created by a 68 metres (223 ft) tall and 318.52 metres (1,045 ft) long concrete face rock-fill embankment dam and has a capacity of 23,400,000 cubic metres (18,971 acre·ft) . Water from the upper reservoir can then be re-released down two penstocks towards the power station. The same reversible pumps that moved the water up can now generate electricity. Just before reaching the power station, the two penstocks each split off into four separate branch pipes, each feeding one of the eight reversible 300 MW turbine generators with water. Once power generation is complete, the generators can reverse, pump the water back up to the upper reservoir and resume the process over again.
Read more about this topic: Guangdong Pumped Storage Power Station
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