Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Camas Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.4 GWh | May 2022 | Dec 2023 | Solar |
| Lower Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 286.1 GWh | Feb 1960 | Dec 2023 | Water |
| Calligan Creek Hydroelectric Project | PUD No 1 of Snohomish County | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 6.1 GWh | Jan 2018 | Dec 2022 | Water |
| Nooksack Hydro | Puget Sound Hydro LLC | Glacier, WA | Puget Sound Energy, Inc. (PSEI) | 16.0 GWh | Oct 1906 | Dec 2023 | Water |
| LRI LFGTE Facility | Frontier Operation Services | Graham, WA | Puget Sound Energy, Inc. (PSEI) | 36.3 GWh | Oct 2013 | Dec 2023 | Landfill Gas |
| Swauk Wind LLC | Gamesa Wind US LLC | Thorp, WA | Puget Sound Energy, Inc. (PSEI) | 6.5 GWh | Nov 2012 | Dec 2023 | Wind |
| Skookumchuck Wind Facility | Southern Power Co | Rainier, WA | Puget Sound Energy, Inc. (PSEI) | 441.8 GWh | Oct 2020 | Jun 2024 | Wind |
| Crystal Mountain | Puget Sound Energy Inc | Greenwater, WA | Puget Sound Energy, Inc. (PSEI) | 196.0 MWh | Nov 1969 | Jun 2024 | Distillate Fuel Oil |
| Snoqualmie | Puget Sound Energy Inc | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 65.5 GWh | Dec 1897 | Dec 2023 | Water |
| Weeks Falls | Eagle Creek Renewable Energy, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 9.7 GWh | May 1990 | Dec 2023 | Water |
| Snoqualmie 2 | Puget Sound Energy Inc | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 113.5 GWh | Dec 1956 | Dec 2023 | Water |
| Encogen | Puget Sound Energy Inc | Bellingham, WA | Puget Sound Energy, Inc. (PSEI) | 1.0 TWh | Feb 1993 | Jun 2024 | Natural Gas : 99.8% |
| Twin Falls Hydro | Central Rivers Power US, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 79.1 GWh | Nov 1989 | Dec 2022 | Water |
| Koma Kulshan | Eagle Creek Renewable Energy, LLC | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 28.5 GWh | Sep 1990 | Dec 2023 | Water |
| HF Sinclair Puget Sound Refining | HF Sinclair Corporation | Anacortes, WA | Puget Sound Energy, Inc. (PSEI) | 1.1 TWh | Aug 1991 | Jun 2024 | Natural Gas : 77.9% Other Gas : 22.1% |
| Cedar Hills | Bio Energy Washington, LLC | Maple Valley, WA | Puget Sound Energy, Inc. (PSEI) | 454.0 MWh | Mar 2009 | Dec 2023 | Landfill Gas : 89.3% Distillate Fuel Oil : 10.7% |
| Sumas Power Plant | Puget Sound Energy Inc | Sumas, WA | Puget Sound Energy, Inc. (PSEI) | 499.3 GWh | Feb 1993 | Dec 2022 | Natural Gas |
| Ferndale Generating Station | Puget Sound Energy Inc | Ferndale, WA | Puget Sound Energy, Inc. (PSEI) | 1.7 TWh | Mar 1994 | Jun 2024 | Natural Gas : 99.9% |
| Black Creek | Black Creek Hydro Inc | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 9.1 GWh | Jan 1994 | Dec 2023 | Water |
| Goldendale Generating Station | Puget Sound Energy Inc | Goldendale, WA | Puget Sound Energy, Inc. (PSEI) | 1.7 TWh | Jul 2004 | Dec 2022 | Natural Gas |
| Mint Farm Generating Station | Puget Sound Energy Inc | Longview, WA | Puget Sound Energy, Inc. (PSEI) | 1.7 TWh | Dec 2007 | Dec 2022 | Natural Gas |
| Whitehorn | Puget Sound Energy Inc | Blaine, WA | Puget Sound Energy, Inc. (PSEI) | 451.2 GWh | Sep 1981 | Dec 2023 | Natural Gas : 99.7% |
| Wild Horse | Puget Sound Energy Inc | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 638.1 GWh | Nov 2006 | Jun 2024 | Wind : 99.9% |
| Sierra Pacific Burlington Facility | Sierra Pacific Industries | Mt Vernon, WA | Puget Sound Energy, Inc. (PSEI) | 105.7 GWh | Feb 2007 | Dec 2022 | Wood/Wood Waste Solids |
| Vantage Wind Energy LLC | Invenergy Services LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 247.3 GWh | Jul 2010 | Dec 2023 | Wind |
| Ross | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 383.6 GWh | Nov 1952 | Jun 2024 | Water |
| University of Washington Power Plant | University of Washington | Seattle, WA | Seattle City Light (SCL) | 6.0 GWh | Dec 1968 | Jun 2024 | Natural Gas : 97.4% Distillate Fuel Oil : 2.6% |
| Cedar Falls (WA) | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 31.3 GWh | Oct 1921 | Dec 2023 | Water |
| West Point Treatment Plant | King County Dept-Natural Res | Seattle, WA | Seattle City Light (SCL) | 8.1 GWh | May 2012 | Dec 2023 | Other Biomass Gas |
| Gorge | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 663.8 GWh | Aug 1924 | Jun 2024 | Water |
| Diablo | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 592.1 GWh | Sep 1936 | Dec 2023 | Water |
| Boundary | City of Seattle - (WA) | Metaline, WA | Seattle City Light (SCL) | 3.2 TWh | Jul 1967 | Jun 2024 | Water |
| South Fork Tolt | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 34.4 GWh | Oct 1995 | Dec 2023 | Water |
Browse Power Plants By Washington Counties
Figures are based on June 2024 generation numbers.| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Grant County, WA | # 1 | 8 | 25.3 TWh |
| Douglas County, WA | # 2 | 2 | 13.5 TWh |
| Benton County, WA | # 3 | 6 | 10.6 TWh |
| Chelan County, WA | # 4 | 4 | 7.7 TWh |
| Lewis County, WA | # 5 | 8 | 7.6 TWh |
| Whatcom County, WA | # 6 | 13 | 5.7 TWh |
| Klickitat County, WA | # 7 | 15 | 5.2 TWh |
| Grays Harbor County, WA | # 8 | 6 | 3.7 TWh |
| Pend Oreille County, WA | # 9 | 3 | 3.6 TWh |
| Walla Walla County, WA | # 10 | 4 | 3.4 TWh |
| Columbia County, WA | # 11 | 4 | 3.4 TWh |
| Cowlitz County, WA | # 12 | 6 | 3.3 TWh |
| Skagit County, WA | # 13 | 4 | 2.6 TWh |
| Pierce County, WA | # 14 | 13 | 2.3 TWh |
| Clark County, WA | # 15 | 2 | 1.9 TWh |
| Whitman County, WA | # 16 | 6 | 1.8 TWh |
| County | State Rank | Active Plants | Jun 2024 Generation |
|---|---|---|---|
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Garfield County, WA | # 18 | 1 | 838.1 GWh |
| Lincoln County, WA | # 19 | 2 | 640.2 GWh |
| Skamania County, WA | # 20 | 1 | 593.9 GWh |
| Spokane County, WA | # 21 | 7 | 547.3 GWh |
| Snohomish County, WA | # 22 | 8 | 492.7 GWh |
| Thurston County, WA | # 23 | 3 | 471.6 GWh |
| Adams County, WA | # 24 | 4 | 464.3 GWh |
| Stevens County, WA | # 25 | 4 | 384.8 GWh |
| King County, WA | # 26 | 12 | 369.6 GWh |
| Mason County, WA | # 27 | 3 | 313.3 GWh |
| Yakima County, WA | # 28 | 12 | 112.1 GWh |
| Clallam County, WA | # 29 | 3 | 37.7 GWh |
| Franklin County, WA | # 30 | 3 | 18.0 GWh |
| Jefferson County, WA | # 31 | 2 | 219.0 MWh |