National Hydropower Map

Conventional Hydropower and Pumped Storage projects generate about about 7% of the electricity used in the United States.

This useful resource provides a state-by-state look at existing conventional hydropower and pumped-storage projects. Also included are the existing dams in each state being used to impound water for recreation, water supply, or irrigation (i.e., “non-powered” dams), but not yet for electric power generation.

The Hydropower Pipeline tab (far right) gives an overview of proposed hydropower projects in each state.