Explore the largest hydro power plants in the US and see all the utility-scale hydro projects in the US on a map.
Last updated: May 2026
On this page, you can explore our real-time database of hydro power plants in the US. Each month, we track hydro projects and update our list of the largest hydro power plants in the US.
As of May 2026, there are 1457 utility-scale hydro power plants in the US, according to Cleanview's project tracker. Their total operating capacity is 102,282 MW. In 2025, there was 1 hydro power plant built in the US.
Total Hydro Power Plants
1,457
Total Capacity
102,282 MW
Built in 2025
1
Map of hydro power plants across the United States. Marker size reflects capacity — only facilities with reported capacity data are shown.
6,809 MW
Year Operational: April 1984
Location: Grant, Washington
2,862 MW
Year Operational: December 1985
Location: Bath, Virginia
2,456 MW
Year Operational: May 1979
Location: Douglas, Washington
2,429 MW
Year Operational: May 1962
Location: Niagara, New York
2,160 MW
Year Operational: December 1971
Location: Sherman, Oregon
1,979 MW
Year Operational: October 1973
Location: Mason, Michigan
1,820 MW
Year Operational: December 1973
Location: Wasco, Oregon
1,714 MW
Year Operational: August 1979
Location: Hamilton, Tennessee
1,682 MW
Year Operational: August 1978
Location: Los Angeles, California
17 MW
Year Operational: July 2025
Location: Lewis and Clark, Montana
1 MW
Year Operational: September 2024
Location: San Bernardino, California
2 MW
Year Operational: December 2023
Location: Wrangell Petersburg, Alaska
195 MW
Year Operational: October 2023
Location: Grafton, New Hampshire
37 MW
Year Operational: January 2023
Location: Clackamas, Oregon
5 MW
Year Operational: November 2022
Location: Mesa, Colorado
3 MW
Year Operational: May 2022
Location: St Joseph, Indiana
16 MW
Year Operational: March 2022
Location: Madison, Montana
3 MW
Year Operational: September 2021
Location: Estill, Kentucky
Cleanview