Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| HF Sinclair Puget Sound Refining | HF Sinclair Corporation | Anacortes, WA | Puget Sound Energy, Inc. (PSEI) | 1.0 TWh | Aug 1991 | Mar 2025 | Natural Gas : 75.2% Other Gas : 24.8% |
| Hopkins Ridge Wind | Puget Sound Energy Inc | Dayton, WA | Bonneville Power Administration (BPAT) | 405.8 GWh | Oct 2005 | Mar 2025 | Wind |
| H M Jackson | PUD No 1 of Snohomish County | Sultan, WA | Bonneville Power Administration (BPAT) | 298.0 GWh | May 1984 | Dec 2023 | Water |
| Harvest Wind Project | Harvest Wind Project TIC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 216.8 GWh | Nov 2009 | Dec 2023 | Wind |
| Hancock Creek Hydroelectric Project | PUD No 1 of Snohomish County | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 16.6 GWh | Jan 2018 | Dec 2023 | Water |
| Horn Rapids Solar, Storage and Training | Energy Northwest | Richland, WA | Bonneville Power Administration (BPAT) | 6.6 GWh | Sep 2020 | Dec 2023 | Solar : 86.8% Electricity used for energy storage : 13.2% |
Browse Power Plants By Washington Counties
Figures are based on March 2025 generation numbers.| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Grant County, WA | # 1 | 8 | 23.7 TWh |
| Douglas County, WA | # 2 | 2 | 13.1 TWh |
| Benton County, WA | # 3 | 6 | 10.2 TWh |
| Chelan County, WA | # 4 | 4 | 7.4 TWh |
| Lewis County, WA | # 5 | 8 | 7.2 TWh |
| Whatcom County, WA | # 6 | 13 | 5.5 TWh |
| Klickitat County, WA | # 7 | 16 | 5.3 TWh |
| Cowlitz County, WA | # 8 | 6 | 3.4 TWh |
| Pend Oreille County, WA | # 9 | 3 | 3.2 TWh |
| Columbia County, WA | # 10 | 4 | 3.2 TWh |
| Walla Walla County, WA | # 11 | 4 | 3.1 TWh |
| Grays Harbor County, WA | # 12 | 6 | 3.1 TWh |
| Pierce County, WA | # 13 | 13 | 2.7 TWh |
| Skagit County, WA | # 14 | 4 | 1.7 TWh |
| Whitman County, WA | # 15 | 6 | 1.7 TWh |
| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Clark County, WA | # 16 | 2 | 1.6 TWh |
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Garfield County, WA | # 18 | 1 | 852.0 GWh |
| Lincoln County, WA | # 19 | 2 | 588.8 GWh |
| Skamania County, WA | # 20 | 1 | 525.6 GWh |
| Spokane County, WA | # 21 | 7 | 494.7 GWh |
| Adams County, WA | # 22 | 4 | 451.4 GWh |
| Thurston County, WA | # 23 | 3 | 439.8 GWh |
| Stevens County, WA | # 24 | 4 | 350.4 GWh |
| Snohomish County, WA | # 25 | 9 | 329.5 GWh |
| King County, WA | # 26 | 12 | 328.8 GWh |
| Mason County, WA | # 27 | 3 | 290.0 GWh |
| Yakima County, WA | # 28 | 12 | 81.9 GWh |
| Clallam County, WA | # 29 | 3 | 36.2 GWh |
| Jefferson County, WA | # 30 | 2 | 35.5 GWh |