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Pumped-storage power station

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Pumped-storage hydropower

2:22

What is Pumped Hydro

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GLOBALink | Giant pumped storage power station starts operation in Hebei, China

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The world's largest pumped-storage power station is officially put into operation-世界规模最大抽水蓄能电站投产发电丰宁

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How does GE’s Hydro Variable Speed Pumped Storage technology work?

Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Although the losses of the pumping process makes the plant a net consumer of energy overall, the system increases revenue by selling more electricity during periods of peak demand, when electricity prices are highest.