Pumped-storage hydroelectricity
OverviewBasic principleTypesEconomic efficiencyLocation requirementsEnvironmental impactPotential technologiesHistory
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. A PSH system 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 t
Pumped storage
Pumped storage is the process of storing energy by using two vertically separated water reservoirs. Water is pumped from the lower reservoir up into a holding reservoir. Pumped storage facilities store excess energy as gravitational
Pumped Storage Hydropower
Closed-loop pumped storage hydropower systems connect two reservoirs without flowing water features via a tunnel, using a turbine/pump and generator/motor to move water and create electricity. The Water Power Technologies Office
Pumped Storage Hydropower: A Key Part of Our Clean
Pumped storage hydropower facilities use water and gravity to create and store renewable energy. Learn more about this energy storage technology and how it can help support the 100% clean energy grid the country—and the
Introduction to Pumping Stations for Water Supply Systems
distribution system will be located near the water treatment facility or a potable water storage facility and will pump directly into the piping system. These pump stations may be a part of
Pumped Storage Hydropower Plants: PSH
The most reliable option for energy storage is the development of a pumped storage scheme, which utilizes the surplus power available during the Off-peak period to pump up the water for storage and meets the On-peak