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Pumped storage hydropower (PSH) is one of the most-common and well-established types of energy storage technologies and currently accounts for 96% of all utility-scale energy storage capacity in the United States.

Hydropower, otherwise known as hydroelectric power, offers a number of advantages to the communities that they serve.

Pumped storage hydropower (PSH) is a type of hydroelectric energy storage. It is a configuration of two water reservoirs at different elevations that can generate power as water moves down from one to the other (discharge), passing through a turbine.

Hydropower, or hydroelectric power, is one of the oldest and largest sources of renewable energy, which uses the natural flow of moving water to generate electricity.

The Energy Department works to ensure domestic and global oil supplies are environmentally sustainable and maintains emergency petroleum stockpiles.

There are three types of hydropower facilities: impoundment, diversion, and pumped storage.

Humans have been harnessing water to perform work for thousands of years.

The U.S. Department of Energy’s hydropower glossary contains definitions for technical terms related to hydropower.