Power plants
Hydroelectric plants in the US
Rare Context lists 40 hydroelectric plants in the United States, with 39,825 MW of capacity between them. The largest is Grand Coulee (6,809 MW).
All hydroelectric plants
Sorted by capacity; plants not built yet come after the others. A plant counts under each technology its register gives it.
By region
- Washington14 · 18,995 MW
- Oregon6 · 6,282 MW
- Idaho3 · 1,232 MW
- New York2 · 3,341 MW
- Arizona2 · 2,351 MW
- South Dakota2 · 1,324 MW
- California2 · 1,358 MW
- Montana2 · 1,013 MW
- Nevada1 · 1,039 MW
- Alabama1 · 667 MW
- North Dakota1 · 583 MW
- Virginia1 · 548 MW
- Maryland1 · 531 MW
- Georgia1 · 500 MW
- Wisconsin1 · 59.8 MW
Every hydroelectric plant in the United States, with owners.All 40 in one file, each with its capacity and grid status. We research what the public sources leave out.
Request the full listData on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.