Hydroelectric power plants in Wyoming
15 operating hydroelectric power plants in Wyoming with 302 MW of hydroelectric capacity, largest first. From EIA-860M, August 2026.
Largest hydroelectric power plants in Wyoming
| # | Plant | Hydroelectric MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Fremont CanyonNatrona County | 67 | 234 | 39.9% |
| 2 | SeminoeCarbon County | 52 | 84.5 | 18.7% |
| 3 | AlcovaNatrona County | 41 | 107 | 29.5% |
| 4 | GlendoPlatte County | 38 | 67.3 | 20.2% |
| 5 | KortesCarbon County | 36 | 106 | 33.5% |
| 6 | Buffalo BillPark County | 18 | 57.5 | 36.4% |
| 7 | BoysenFremont County | 15 | 42.5 | 32.3% |
| 8 | FontenelleLincoln County | 10 | 43.8 | 50.0% |
| 9 | GuernseyPlatte County | 6.4 | 14.6 | 26.0% |
| 10 | Heart MountainPark County | 5.0 | 16.2 | 36.9% |
| 11 | Spirit MountainPark County | 4.5 | 16.1 | 40.9% |
| 12 | Shoshone (WY)Park County | 3.0 | 17.1 | 64.9% |
| 13 | Garland Canal Power PlantPark County | 2.9 | 8.8 | 34.7% |
| 14 | Swift CreekLincoln County | 1.7 | 6.1 | 41.2% |
| 15 | Strawberry CreekLincoln County | 1.5 | 8.8 | 66.8% |
Projects where hydroelectric is the largest fuel or at least a fifth of nameplate capacity. MW is hydroelectric nameplate only; net generation covers the whole project. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources