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Public-images-osm logo.svg generator:method = water-pumped-storage
Pumpspeicherwerk Geesthacht Rohre.jpg
Pumped-storage hydroelectricity Edit or translate this description.
Group: Power
Used on these elements
may be used on nodesshould not be used on waysmay be used on areasshould not be used on relations
Useful combination
Status: approvedPage for proposal


A Pumped-storage_hydroelectricity 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 off-peak electric power is 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.

Pumpstor racoon mtn.jpg
Diagram of the TVA pumped storage facility at Raccoon Mountain Pumped-Storage Plant

Combination tags


energy production