US Hydroelectric Power Plants, 2019
| Plant | State | Mode | Generators in plant | Average power generation (MWh/yr) | Water source |
|---|---|---|---|---|---|
| Kankakee Hydro Facility | Illinois | run-of-river | 3 | 1,832 | Kankakee River |
| Hiwassee Dam | North Carolina | peaking | 2 | 198,220 | Hiwassee River |
| Spirit Mountain | Wyoming | run-of-river | 1 | 15,940 | Shoshone River |
| Gaston Shoals | South Carolina | peaking | 4 | 14,059 | Broad River |
In 2021, Rocío Uría-Martínez, Megan M. Johnson, and Rul Shan published a report on hydroelectric power plants operating in the US as recently as 2019, and data from their report are shown in the table.