Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Coastal Energy Project | Coastal Community Action Program | Aberdeen, WA | Bonneville Power Administration (BPAT) | 11.6 GWh | May 2010 | Dec 2023 | Wind |
| Sierra Pacific Aberdeen | Sierra Pacific Industries | Aberdeen, WA | Bonneville Power Administration (BPAT) | 128.4 GWh | Feb 2003 | Dec 2024 | Wood/Wood Waste Solids |
| Yale | PacifiCorp | Amboy, WA | PacifiCorp West (PACW) | 488.4 GWh | Aug 1953 | Dec 2024 | Water |
| HF Sinclair Puget Sound Refining | HF Sinclair Corporation | Anacortes, WA | Puget Sound Energy, Inc. (PSEI) | 989.9 GWh | Aug 1991 | Sep 2025 | Natural Gas : 72.0% Other Gas : 28.0% |
| Merwin | PacifiCorp | Ariel, WA | PacifiCorp West (PACW) | 467.3 GWh | Jun 1931 | Dec 2024 | Water |
| Arlington Microgrid | PUD No 1 of Snohomish County | Arlington, WA | Bonneville Power Administration (BPAT) | 532.0 MWh | May 2019 | Dec 2024 | Solar |
| Encogen | Puget Sound Energy Inc | Bellingham, WA | Puget Sound Energy, Inc. (PSEI) | 593.2 GWh | Feb 1993 | Sep 2025 | Natural Gas |
| Chandler | U S Bureau of Reclamation | Benton City, WA | Bonneville Power Administration (BPAT) | 31.4 GWh | Jan 1956 | Dec 2024 | Water |
| Wanapum | PUD No 2 of Grant County | Beverly, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 4.3 TWh | May 1963 | Sep 2025 | Water |
| Big Horn Wind Project | Avangrid Power LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 443.5 GWh | Sep 2006 | Sep 2025 | Wind |
| Juniper Canyon I Wind Project | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 212.2 GWh | Feb 2011 | Sep 2025 | Wind |
| Big Horn Wind II | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 97.5 GWh | Dec 2010 | Sep 2025 | Wind |
| Lund Hill Solar | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 367.4 GWh | Sep 2022 | Sep 2025 | Solar |
| 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% |
| Chief Joseph | USACE Northwestern Division | Bridgeport, WA | Bonneville Power Administration (BPAT) | 9.6 TWh | Aug 1955 | Sep 2025 | Water |
| Rocky Brook Hydroelectric | Rocky Brook Electric Inc | Brinnon, WA | Bonneville Power Administration (BPAT) | 540.0 MWh | Nov 1985 | Dec 2024 | Water |
| Ice Harbor | USACE Northwestern Division | Burbank, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | Dec 1961 | Sep 2025 | Water |
| Windy Flats Wind Project | Windy Flats Partners LLC | Centerville, WA | Bonneville Power Administration (BPAT) | 671.6 GWh | Sep 2009 | Dec 2024 | Wind |
| Transalta Centralia Generation | TransAlta Centralia Gen LLC | Centralia, WA | Bonneville Power Administration (BPAT) | 3.3 TWh | Nov 1972 | Sep 2025 | Subbituminous Coal : 99.7% |
| Chehalis Generating Facility | PacifiCorp | Chehalis, WA | Bonneville Power Administration (BPAT) | 2.6 TWh | Jul 2003 | Sep 2025 | Natural Gas |
| Wells | PUD No 1 of Douglas County | Chelan, WA | PUD No. 1 of Douglas County (DOPD) | 3.6 TWh | Aug 1967 | Sep 2025 | Water |
| Koma Kulshan | Eagle Creek Renewable Energy, LLC | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 24.8 GWh | Sep 1990 | Dec 2024 | Water |
| Upper Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 317.8 GWh | Dec 1958 | Dec 2024 | Water |
| Lower Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 326.7 GWh | Feb 1960 | Dec 2024 | Water |
| Swift 1 | PacifiCorp | Cougar, WA | PacifiCorp West (PACW) | 459.1 GWh | Nov 1958 | Sep 2025 | Water |
| Summer Falls Power Plant | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 398.2 GWh | Dec 1984 | Oct 2024 | Water |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 103.3 GWh | Dec 1986 | Oct 2024 | Water |
| Darrington | Hampton Lumber Mills - Washington Inc | Darrington, WA | Bonneville Power Administration (BPAT) | 17.0 GWh | Jan 2007 | Dec 2024 | Wood/Wood Waste Solids |
| Hopkins Ridge Wind | Puget Sound Energy Inc | Dayton, WA | Bonneville Power Administration (BPAT) | 350.9 GWh | Oct 2005 | Sep 2025 | Wind |
| Little Goose | USACE Northwestern Division | Dayton, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | Mar 1970 | Sep 2025 | Water |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 692.7 GWh | Jul 2007 | Dec 2024 | Wind |
| Tucannon River Wind Farm | Portland General Electric Co | Dayton, WA | Portland General Electric Company (PGE) | 808.3 GWh | Nov 2014 | Dec 2024 | Wind |
| Urtica Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.6 GWh | Oct 2022 | Dec 2024 | Solar |
| Camas Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 9.7 GWh | May 2022 | Dec 2024 | Solar |
| Vantage Wind Energy LLC | Invenergy Services LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 273.2 GWh | Jul 2010 | Dec 2024 | Wind |
| Penstemon Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.7 GWh | Dec 2021 | Dec 2024 | Solar |
| Wild Horse | Puget Sound Energy Inc | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 571.1 GWh | Nov 2006 | Sep 2025 | Wind : 99.9% |
| Sagebrush Power Partners | Sagebrush Power Partners, LLC | Ellensburg, WA | Bonneville Power Administration (BPAT) | 277.8 GWh | Oct 2010 | Dec 2024 | Wind |
| Grays Harbor Energy Facility | Invenergy Services LLC | Elma, WA | Bonneville Power Administration (BPAT) | 3.4 TWh | Apr 2008 | Sep 2025 | Natural Gas |
| Ferndale Generating Station | Puget Sound Energy Inc | Ferndale, WA | Puget Sound Energy, Inc. (PSEI) | 1.7 TWh | Mar 1994 | Sep 2025 | Natural Gas |
| Little Falls (WA) | Avista Corp | Ford, WA | Avista Corporation (AVA) | 185.3 GWh | Jun 1910 | Dec 2024 | Water |
| Long Lake | Avista Corp | Ford, WA | Avista Corporation (AVA) | 456.2 GWh | Sep 1915 | Dec 2024 | Water |
| Nooksack Hydro | Puget Sound Hydro LLC | Glacier, WA | Puget Sound Energy, Inc. (PSEI) | 20.1 GWh | Oct 1906 | Dec 2024 | Water |
| Tuolumne Wind Project | Turlock Irrigation District | Goldendale, WA | Bonneville Power Administration (BPAT) | 399.7 GWh | Apr 2009 | Dec 2024 | Wind |
| Linden Wind Energy Project | Los Angeles Department of Water & Power | Goldendale, WA | Bonneville Power Administration (BPAT) | 96.5 GWh | May 2010 | Dec 2024 | Wind |
| Goodnoe Hills | PacifiCorp | Goldendale, WA | Bonneville Power Administration (BPAT) | 275.5 GWh | May 2008 | Dec 2024 | Wind |
| Goldendale Generating Station | Puget Sound Energy Inc | Goldendale, WA | Puget Sound Energy, Inc. (PSEI) | 2.1 TWh | Jul 2004 | Dec 2024 | Natural Gas |
| LRI LFGTE Facility | Frontier Operation Services | Graham, WA | Puget Sound Energy, Inc. (PSEI) | 32.1 GWh | Oct 2013 | Dec 2024 | Landfill Gas |
| Grand Coulee | U S Bureau of Reclamation | Grand Coulee, WA | Bonneville Power Administration (BPAT) | 16.1 TWh | Feb 1941 | Sep 2025 | Water |
| Crystal Mountain | Puget Sound Energy Inc | Greenwater, WA | Puget Sound Energy, Inc. (PSEI) | 492.0 MWh | Nov 1969 | Sep 2025 | Distillate Fuel Oil |
| Box Canyon | PUD No 1 of Pend Oreille County | Ione, WA | Avista Corporation (AVA) | 464.1 GWh | May 1955 | Dec 2024 | Water |
| Lower Monumental | USACE Northwestern Division | Kahlotus, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | May 1969 | Sep 2025 | Water |
| Nine Canyon | Energy Northwest | Kennewick, WA | Bonneville Power Administration (BPAT) | 209.3 GWh | Aug 2002 | Dec 2024 | Wind |
| Meyers Falls | Hydro Technology Systems Inc | Kettle Falls, WA | Avista Corporation (AVA) | 9.2 GWh | May 1915 | Dec 2024 | Water |
| Kettle Falls Generating Station | Avista Corp | Kettle Falls, WA | Avista Corporation (AVA) | 329.8 GWh | Nov 1983 | Dec 2024 | Wood/Wood Waste Solids : 88.7% Natural Gas : 11.3% |
| LaGrande | City of Tacoma - (WA) | La Grande, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 297.3 GWh | Oct 1912 | Dec 2024 | Water |
| Alder | City of Tacoma - (WA) | La Grande, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 182.9 GWh | Nov 1945 | Dec 2024 | Water |
| Lilliwaup Falls Generating | William G. Reed Jr | Lilliwaup, WA | Bonneville Power Administration (BPAT) | 5.4 GWh | Apr 1986 | Dec 2024 | Water |
| Adams Nielson Solar | Strata Manager, LLC | Lind, WA | Avista Corporation (AVA) | 44.6 GWh | Oct 2018 | Sep 2025 | Solar |
| Longview Fibre | Longview Fibre Co | Longview, WA | Bonneville Power Administration (BPAT) | 235.4 GWh | Dec 1948 | Dec 2024 | Black Liquor : 83.1% Natural Gas : 15.4% Wood/Wood Waste Solids : 1.5% |
| Nippon Dynawave Packaging Longview WA | Nippon Dynawave Packaging Co. | Longview, WA | Bonneville Power Administration (BPAT) | 273.7 GWh | Dec 1947 | Sep 2025 | Black Liquor : 54.0% Natural Gas : 18.6% Wood/Wood Waste Solids : 17.0% Subbituminous Coal : 6.7% Sludge Waste : 3.4% |
| Mint Farm Generating Station | Puget Sound Energy Inc | Longview, WA | Puget Sound Energy, Inc. (PSEI) | 2.3 TWh | Dec 2007 | Dec 2024 | Natural Gas |
| Cedar Hills | Bio Energy Washington, LLC | Maple Valley, WA | Puget Sound Energy, Inc. (PSEI) | 78.0 MWh | Mar 2009 | Dec 2024 | Distillate Fuel Oil |
| Priest Rapids | PUD No 2 of Grant County | Mattawa, WA | Bonneville Power Administration (BPAT) | 4.0 TWh | Sep 1959 | Sep 2025 | Water |
| Boundary | City of Seattle - (WA) | Metaline, WA | Seattle City Light (SCL) | 2.8 TWh | Jul 1967 | Aug 2025 | Water |
| Youngs Creek Hydroelectric Project | PUD No 1 of Snohomish County | Monroe, WA | Bonneville Power Administration (BPAT) | 18.7 GWh | Oct 2011 | Dec 2024 | Water |
| 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 |
| PEC Headworks | PUD No 2 of Grant County | Moses Lake, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 17.8 GWh | Aug 1990 | Oct 2024 | Water |
| Goose Prairie Solar | Goose Prairie Solar LLC | Moxee, WA | Bonneville Power Administration (BPAT) | 161.7 GWh | Nov 2024 | Sep 2025 | Solar |
| Sierra Pacific Burlington Facility | Sierra Pacific Industries | Mt Vernon, WA | Puget Sound Energy, Inc. (PSEI) | 151.4 GWh | Feb 2007 | Dec 2024 | Wood/Wood Waste Solids |
| Fredonia (WA) | Puget Sound Energy Inc | Mt Vernon, WA | Puget Sound Energy, Inc. (PSEI) | 220.2 GWh | Apr 1984 | Sep 2025 | Natural Gas : 99.0% Distillate Fuel Oil : 1.0% |
| Nine Mile | Avista Corp | Nine Mile, WA | Avista Corporation (AVA) | 125.7 GWh | Jun 1908 | Dec 2024 | Water |
| Twin Falls Hydro | Central Rivers Power US, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 62.9 GWh | Nov 1989 | Dec 2024 | Water |
| South Fork Tolt | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 44.6 GWh | Oct 1995 | Dec 2024 | Water |
| Weeks Falls | Eagle Creek Renewable Energy, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 13.1 GWh | May 1990 | Dec 2024 | Water |
| Cedar Falls (WA) | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 6.2 GWh | Oct 1921 | Dec 2024 | Water |
| Sheep Creek Hydro | Sheep Creek Hydro Inc | Northport, WA | Avista Corporation (AVA) | 7.8 GWh | May 1986 | Dec 2024 | Water |
| Palouse | Onward Energy | Oakesdale, WA | Avista Corporation (AVA) | 325.9 GWh | Nov 2012 | Dec 2024 | Wind |
| Russell D Smith | Columbia Basin Hydropower | Othello, WA | Bonneville Power Administration (BPAT) | 13.4 GWh | Aug 1982 | Sep 2024 | Water |
| Packwood | Energy Northwest | Packwood, WA | Bonneville Power Administration (BPAT) | 63.0 GWh | Mar 1964 | Dec 2024 | Water |
| Eltopia Branch Canal 4.6 | Columbia Basin Hydropower | Pasco, WA | Bonneville Power Administration (BPAT) | 8.0 GWh | Apr 1983 | Oct 2024 | Water |
| Potholes East Canal 66.0 | Columbia Basin Hydropower | Pasco, WA | Bonneville Power Administration (BPAT) | 4.8 GWh | Feb 1985 | Oct 2024 | Water |
| McNary Dam Fish Attraction Project | Northern Wasco County PUD | Plymouth, WA | Bonneville Power Administration (BPAT) | 64.2 GWh | Oct 1997 | Dec 2024 | Water |
| Lower Granite | USACE Northwestern Division | Pomeroy, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | Mar 1975 | Sep 2025 | Water |
| Lower Snake River Wind Energy Project | Puget Sound Energy Inc | Pomeroy, WA | Bonneville Power Administration (BPAT) | 785.6 GWh | Jan 2012 | Sep 2025 | Wind |
| McKinley Paper Co. - Washington Mill | McKinley Paper Co. - Washington Mill | Port Angeles, WA | Bonneville Power Administration (BPAT) | 37.5 GWh | Sep 2013 | Aug 2024 | Wood/Wood Waste Solids |
| Port Townsend Paper | Port Townsend Paper Co | Port Townsend, WA | Bonneville Power Administration (BPAT) | 2.6 GWh | Dec 1928 | Dec 2024 | Black Liquor : 49.9% Wood/Wood Waste Solids : 35.3% Natural Gas : 11.0% Waste/Other Oil : 3.8% |
| Grimes Way | Washington State University | Pullman, WA | Avista Corporation (AVA) | 81.0 MWh | Dec 2004 | Sep 2025 | Distillate Fuel Oil : 77.5% Natural Gas : 22.5% |
| Quincy Chute | PUD No 2 of Grant County | Quincy, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 30.9 GWh | Sep 1985 | Oct 2024 | Water |
| Skookumchuck Wind Facility | Southern Power Co | Rainier, WA | Puget Sound Energy, Inc. (PSEI) | 391.7 GWh | Oct 2020 | Sep 2025 | Wind |
| Cowlitz Falls | PUD No 1 of Lewis County | Randle, WA | Bonneville Power Administration (BPAT) | 196.3 GWh | May 1994 | Dec 2024 | Water |
| Horn Rapids Solar, Storage and Training | Energy Northwest | Richland, WA | Bonneville Power Administration (BPAT) | 5.2 GWh | Sep 2020 | Dec 2024 | Solar |
| Columbia Generating Station | Energy Northwest | Richland, WA | Bonneville Power Administration (BPAT) | 7.7 TWh | Nov 1984 | Sep 2025 | Nuclear |
| Tieton Dam Hydro Electric Project | City of Burbank Water and Power | Rimrock, WA | PacifiCorp West (PACW) | 19.5 GWh | Aug 2006 | Sep 2024 | Water |
| Rattlesnake Flat | Rattlesnake Flat, LLC | Ritzville, WA | Avista Corporation (AVA) | 399.6 GWh | Nov 2020 | Sep 2025 | Wind |
| Ross | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 400.9 GWh | Nov 1952 | Jul 2025 | Water |
| Gorge | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 714.5 GWh | Aug 1924 | Jul 2025 | Water |
| Diablo | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 361.4 GWh | Sep 1936 | Dec 2024 | Water |
| White Creek Wind Farm | White Creek Wind 1 LLC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 563.7 GWh | Oct 2007 | Dec 2024 | Wind |
| Harvest Wind Project | Harvest Wind Project TIC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 263.7 GWh | Nov 2009 | Dec 2024 | Wind |
Browse Power Plants By Washington Counties
Figures are based on September 2025 generation numbers.| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Grant County, WA | # 1 | 9 | 25.0 TWh |
| Chelan County, WA | # 2 | 6 | 11.2 TWh |
| Douglas County, WA | # 3 | 1 | 9.6 TWh |
| Benton County, WA | # 4 | 7 | 8.0 TWh |
| Lewis County, WA | # 5 | 8 | 7.5 TWh |
| Klickitat County, WA | # 6 | 16 | 5.5 TWh |
| Whatcom County, WA | # 7 | 13 | 5.1 TWh |
| Cowlitz County, WA | # 8 | 6 | 3.8 TWh |
| Grays Harbor County, WA | # 9 | 6 | 3.6 TWh |
| Columbia County, WA | # 10 | 4 | 3.3 TWh |
| Pend Oreille County, WA | # 11 | 3 | 3.2 TWh |
| Walla Walla County, WA | # 12 | 4 | 3.2 TWh |
| Pierce County, WA | # 13 | 14 | 2.3 TWh |
| Whitman County, WA | # 14 | 6 | 1.7 TWh |
| Skagit County, WA | # 15 | 4 | 1.7 TWh |
| Clark County, WA | # 16 | 2 | 1.5 TWh |
| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Garfield County, WA | # 18 | 2 | 785.6 GWh |
| Lincoln County, WA | # 19 | 2 | 641.5 GWh |
| Spokane County, WA | # 20 | 7 | 558.6 GWh |
| Skamania County, WA | # 21 | 1 | 459.1 GWh |
| Adams County, WA | # 22 | 4 | 457.6 GWh |
| Thurston County, WA | # 23 | 4 | 427.5 GWh |
| Snohomish County, WA | # 24 | 9 | 401.9 GWh |
| King County, WA | # 25 | 12 | 365.2 GWh |
| Stevens County, WA | # 26 | 4 | 346.7 GWh |
| Mason County, WA | # 27 | 3 | 304.6 GWh |
| Yakima County, WA | # 28 | 12 | 234.0 GWh |
| Clallam County, WA | # 29 | 3 | 37.5 GWh |
| Franklin County, WA | # 30 | 3 | 12.8 GWh |
| Jefferson County, WA | # 31 | 3 | 3.2 GWh |