Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Wanapum | PUD No 2 of Grant County | Beverly, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 4.3 TWh | May 1963 | Apr 2025 | Water |
| Weeks Falls | Eagle Creek Renewable Energy, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 13.1 GWh | May 1990 | Dec 2024 | Water |
| Wells | PUD No 1 of Douglas County | Chelan, WA | PUD No. 1 of Douglas County (DOPD) | 3.7 TWh | Aug 1967 | Apr 2025 | Water |
| West Point Treatment Plant | King County Dept-Natural Res | Seattle, WA | Seattle City Light (SCL) | 9.6 GWh | May 2012 | Dec 2024 | Other Biomass Gas |
| White Creek Wind Farm | White Creek Wind 1 LLC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 563.7 GWh | Oct 2007 | Dec 2024 | Wind |
| Whitehorn | Puget Sound Energy Inc | Blaine, WA | Puget Sound Energy, Inc. (PSEI) | 230.3 GWh | Sep 1981 | Dec 2024 | Natural Gas : 97.5% Distillate Fuel Oil : 2.5% |
| Wild Horse | Puget Sound Energy Inc | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 612.8 GWh | Nov 2006 | Apr 2025 | Wind : 99.9% |
| Windy Flats Wind Project | Windy Flats Partners LLC | Centerville, WA | Bonneville Power Administration (BPAT) | 671.6 GWh | Sep 2009 | Dec 2024 | Wind |
| Wynoochee | City of Tacoma - (WA) | Montesano, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 30.8 GWh | Dec 1993 | Dec 2024 | Water |
Browse Power Plants By Washington Counties
Figures are based on April 2025 generation numbers.| County | State Rank | Active Plants | Apr 2025 Generation |
|---|---|---|---|
| Adams County, WA | # 22 | 4 | 457.5 GWh |
| Benton County, WA | # 4 | 7 | 9.6 TWh |
| Chelan County, WA | # 2 | 5 | 11.4 TWh |
| Clallam County, WA | # 29 | 3 | 37.5 GWh |
| Clark County, WA | # 16 | 2 | 1.6 TWh |
| Columbia County, WA | # 9 | 4 | 3.4 TWh |
| Cowlitz County, WA | # 10 | 6 | 3.4 TWh |
| Douglas County, WA | # 3 | 1 | 9.8 TWh |
| Franklin County, WA | # 31 | 3 | 12.8 GWh |
| Garfield County, WA | # 18 | 2 | 831.5 GWh |
| Grant County, WA | # 1 | 9 | 25.0 TWh |
| Grays Harbor County, WA | # 11 | 6 | 3.3 TWh |
| Jefferson County, WA | # 30 | 3 | 26.8 GWh |
| King County, WA | # 25 | 12 | 366.3 GWh |
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Klickitat County, WA | # 6 | 16 | 5.6 TWh |
| County | State Rank | Active Plants | Apr 2025 Generation |
|---|---|---|---|
| Lewis County, WA | # 5 | 8 | 7.2 TWh |
| Lincoln County, WA | # 19 | 2 | 641.5 GWh |
| Mason County, WA | # 27 | 3 | 304.6 GWh |
| Pend Oreille County, WA | # 8 | 3 | 3.4 TWh |
| Pierce County, WA | # 13 | 14 | 2.4 TWh |
| Skagit County, WA | # 15 | 4 | 1.7 TWh |
| Skamania County, WA | # 21 | 1 | 553.9 GWh |
| Snohomish County, WA | # 24 | 9 | 401.9 GWh |
| Spokane County, WA | # 20 | 7 | 561.9 GWh |
| Stevens County, WA | # 26 | 4 | 352.1 GWh |
| Thurston County, WA | # 23 | 4 | 437.6 GWh |
| Walla Walla County, WA | # 12 | 4 | 3.2 TWh |
| Whatcom County, WA | # 7 | 13 | 5.0 TWh |
| Whitman County, WA | # 14 | 6 | 1.7 TWh |
| Yakima County, WA | # 28 | 12 | 117.2 GWh |