Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Columbia Generating Station | Energy Northwest | Richland, WA | Bonneville Power Administration (BPAT) | 9.3 TWh | Nov 1984 | Apr 2025 | Nuclear |
| Fredonia | Puget Sound Energy Inc | Mt Vernon, WA | Puget Sound Energy, Inc. (PSEI) | 234.7 GWh | Apr 1984 | Apr 2025 | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| Swift 1 | PacifiCorp | Cougar, WA | PacifiCorp West (PACW) | 553.9 GWh | Nov 1958 | Apr 2025 | Water |
| Crystal Mountain | Puget Sound Energy Inc | Greenwater, WA | Puget Sound Energy, Inc. (PSEI) | 275.0 MWh | Nov 1969 | Apr 2025 | Distillate Fuel Oil |
| Rocky Reach | PUD No 1 of Chelan County | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 5.2 TWh | May 1961 | Apr 2025 | 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 |
| Priest Rapids | PUD No 2 of Grant County | Mattawa, WA | Bonneville Power Administration (BPAT) | 4.0 TWh | Sep 1959 | Apr 2025 | 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 | Apr 2025 | Water |
| Mossyrock | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 824.4 GWh | Sep 1968 | Apr 2025 | Water |
| Chief Joseph | USACE Northwestern Division | Bridgeport, WA | Bonneville Power Administration (BPAT) | 9.8 TWh | Aug 1955 | Apr 2025 | Water |
| Ice Harbor | USACE Northwestern Division | Burbank, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | Dec 1961 | Apr 2025 | Water |
| Little Goose | USACE Northwestern Division | Dayton, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | Mar 1970 | Apr 2025 | Water |
| Lower Monumental | USACE Northwestern Division | Kahlotus, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | May 1969 | Apr 2025 | Water |
| Grand Coulee | U S Bureau of Reclamation | Grand Coulee, WA | Bonneville Power Administration (BPAT) | 16.2 TWh | Feb 1941 | Apr 2025 | Water |
| Lower Granite | USACE Northwestern Division | Pomeroy, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | Mar 1975 | Apr 2025 | Water |
| Rock Island | PUD No 1 of Chelan County | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 2.2 TWh | Sep 1931 | Apr 2025 | Water |
| Ross | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 391.6 GWh | Nov 1952 | Apr 2025 | Water |
| Gorge | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 700.0 GWh | Aug 1924 | Apr 2025 | Water |
| Boundary | City of Seattle - (WA) | Metaline, WA | Seattle City Light (SCL) | 3.0 TWh | Jul 1967 | Apr 2025 | Water |
| Encogen | Puget Sound Energy Inc | Bellingham, WA | Puget Sound Energy, Inc. (PSEI) | 512.4 GWh | Feb 1993 | Apr 2025 | Natural Gas |
| Grays Harbor Energy Facility | Invenergy Services LLC | Elma, WA | Bonneville Power Administration (BPAT) | 3.1 TWh | Apr 2008 | Apr 2025 | Natural Gas |
| Nippon Dynawave Packaging Longview WA | Nippon Dynawave Packaging Co. | Longview, WA | Bonneville Power Administration (BPAT) | 285.2 GWh | Dec 1947 | Apr 2025 | Black Liquor : 47.7% Natural Gas : 22.9% Wood/Wood Waste Solids : 17.6% Subbituminous Coal : 7.8% Sludge Waste : 3.6% |
| Spokane Waste to Energy | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 137.8 GWh | Aug 1991 | Apr 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| HF Sinclair Puget Sound Refining | HF Sinclair Corporation | Anacortes, WA | Puget Sound Energy, Inc. (PSEI) | 995.9 GWh | Aug 1991 | Apr 2025 | Natural Gas : 74.1% Other Gas : 25.9% |
| Ferndale Generating Station | Puget Sound Energy Inc | Ferndale, WA | Puget Sound Energy, Inc. (PSEI) | 1.6 TWh | Mar 1994 | Apr 2025 | Natural Gas |
| University of Washington Power Plant | University of Washington | Seattle, WA | Seattle City Light (SCL) | 5.2 GWh | Dec 1968 | Apr 2025 | Natural Gas : 97.3% Distillate Fuel Oil : 2.7% |
| Chehalis Generating Facility | PacifiCorp | Chehalis, WA | Bonneville Power Administration (BPAT) | 2.5 TWh | Jul 2003 | Apr 2025 | Natural Gas |
| Grimes Way | Washington State University | Pullman, WA | Avista Corporation (AVA) | 72.0 MWh | Dec 2004 | Apr 2025 | Distillate Fuel Oil : 59.7% Natural Gas : 40.3% |
| Hopkins Ridge Wind | Puget Sound Energy Inc | Dayton, WA | Bonneville Power Administration (BPAT) | 391.1 GWh | Oct 2005 | Apr 2025 | Wind |
| Wild Horse | Puget Sound Energy Inc | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 612.8 GWh | Nov 2006 | Apr 2025 | Wind : 99.9% |
| Big Horn Wind Project | Avangrid Power LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 462.4 GWh | Sep 2006 | Apr 2025 | Wind |
| Lower Snake River Wind Energy Project | Puget Sound Energy Inc | Pomeroy, WA | Bonneville Power Administration (BPAT) | 831.5 GWh | Jan 2012 | Apr 2025 | Wind |
| Big Horn Wind II | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 102.4 GWh | Dec 2010 | Apr 2025 | Wind |
| Juniper Canyon I Wind Project | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 239.9 GWh | Feb 2011 | Apr 2025 | Wind |
| Adams Nielson Solar | Strata Manager, LLC | Lind, WA | Avista Corporation (AVA) | 43.1 GWh | Oct 2018 | Apr 2025 | Solar |
| Rattlesnake Flat | Rattlesnake Flat, LLC | Ritzville, WA | Avista Corporation (AVA) | 401.0 GWh | Nov 2020 | Apr 2025 | Wind |
| Skookumchuck Wind Facility | Southern Power Co | Rainier, WA | Puget Sound Energy, Inc. (PSEI) | 400.6 GWh | Oct 2020 | Apr 2025 | Wind |
| Lund Hill Solar | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 356.9 GWh | Sep 2022 | Apr 2025 | Solar |
| Goose Prairie Solar | Goose Prairie Solar LLC | Moxee, WA | Bonneville Power Administration (BPAT) | 50.0 GWh | Nov 2024 | Apr 2025 | Solar |
| Transalta Centralia Generation | TransAlta Centralia Gen LLC | Centralia, WA | Bonneville Power Administration (BPAT) | 3.1 TWh | Nov 1972 | Mar 2025 | Subbituminous Coal : 99.8% |
| River Road Gen Plant | PUD No 1 of Clark County - (WA) | Vancouver, WA | Bonneville Power Administration (BPAT) | 1.6 TWh | Nov 1997 | Feb 2025 | Natural Gas |
| Frederickson | Puget Sound Energy Inc | Tacoma, WA | Puget Sound Energy, Inc. (PSEI) | 87.8 GWh | Oct 1981 | Dec 2024 | Natural Gas : 78.5% Distillate Fuel Oil : 21.5% |
| South Fork Tolt | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 44.6 GWh | Oct 1995 | Dec 2024 | Water |
| Merwin | PacifiCorp | Ariel, WA | PacifiCorp West (PACW) | 467.3 GWh | Jun 1931 | Dec 2024 | Water |
| Yale | PacifiCorp | Amboy, WA | PacifiCorp West (PACW) | 488.4 GWh | Aug 1953 | Dec 2024 | Water |
| Lower Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 326.7 GWh | Feb 1960 | Dec 2024 | Water |
| Snoqualmie | Puget Sound Energy Inc | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 65.9 GWh | Dec 1897 | Dec 2024 | Water |
| Upper Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 317.8 GWh | Dec 1958 | Dec 2024 | Water |
| 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 |
| Meyers Falls | Hydro Technology Systems Inc | Kettle Falls, WA | Avista Corporation (AVA) | 9.2 GWh | May 1915 | Dec 2024 | Water |
| Nine Mile | Avista Corp | Nine Mile, WA | Avista Corporation (AVA) | 125.7 GWh | Jun 1908 | Dec 2024 | Water |
| Yelm | City of Centralia - (WA) | Yelm, WA | Bonneville Power Administration (BPAT) | 33.7 GWh | Nov 1930 | Dec 2024 | Water |
| Box Canyon | PUD No 1 of Pend Oreille County | Ione, WA | Avista Corporation (AVA) | 464.1 GWh | May 1955 | 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 |
| Cushman 1 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 120.0 GWh | May 1926 | Dec 2024 | Water |
| Cushman 2 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 179.2 GWh | Nov 1930 | Dec 2024 | Water |
| 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 |
| Mayfield | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 576.4 GWh | Feb 1963 | Dec 2024 | Water |
| Packwood | Energy Northwest | Packwood, WA | Bonneville Power Administration (BPAT) | 63.0 GWh | Mar 1964 | Dec 2024 | Water |
| 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% |
| Northeast (WA) | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 1.2 GWh | Nov 1978 | Dec 2024 | Natural Gas |
| Chandler | U S Bureau of Reclamation | Benton City, WA | Bonneville Power Administration (BPAT) | 31.4 GWh | Jan 1956 | Dec 2024 | Water |
| Roza | U S Bureau of Reclamation | Yakima, WA | Bonneville Power Administration (BPAT) | 47.7 GWh | Jul 1958 | Dec 2024 | Water |
| Chelan | PUD No 1 of Chelan County | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 328.0 GWh | Aug 1927 | 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 |
| Diablo | City of Seattle - (WA) | Rockport, WA | Seattle City Light (SCL) | 361.4 GWh | Sep 1936 | 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 |
| Cowlitz Falls | PUD No 1 of Lewis County | Randle, WA | Bonneville Power Administration (BPAT) | 196.3 GWh | May 1994 | Dec 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 |
| H M Jackson | PUD No 1 of Snohomish County | Sultan, WA | Bonneville Power Administration (BPAT) | 365.7 GWh | May 1984 | Dec 2024 | Water |
| Snoqualmie 2 | Puget Sound Energy Inc | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 108.9 GWh | Dec 1956 | Dec 2024 | Water |
| Nine Canyon | Energy Northwest | Kennewick, WA | Bonneville Power Administration (BPAT) | 209.3 GWh | Aug 2002 | Dec 2024 | Wind |
| Boulder Park | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 99.0 GWh | Apr 2002 | Dec 2024 | Natural Gas |
| Monroe Street | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 89.9 GWh | Nov 1992 | Dec 2024 | Water |
| Upper Falls | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 59.9 GWh | Mar 1922 | Dec 2024 | Water |
| Sheep Creek Hydro | Sheep Creek Hydro Inc | Northport, WA | Avista Corporation (AVA) | 7.8 GWh | May 1986 | Dec 2024 | Water |
| Rocky Brook Hydroelectric | Rocky Brook Electric Inc | Brinnon, WA | Bonneville Power Administration (BPAT) | 540.0 MWh | Nov 1985 | Dec 2024 | 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 |
| Upriver Dam Hydro Plant | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 48.4 GWh | Dec 1935 | Dec 2024 | Water |
| Twin Reservoirs | Walla Walla City of | Walla Walla, WA | Bonneville Power Administration (BPAT) | 7.3 GWh | Mar 1988 | Dec 2024 | Water |
| Port Townsend Paper | Port Townsend Paper Co | Port Townsend, WA | Bonneville Power Administration (BPAT) | 26.3 GWh | Dec 1928 | Dec 2024 | Black Liquor : 49.9% Wood/Wood Waste Solids : 35.3% Natural Gas : 11.0% Waste/Other Oil : 3.8% |
| Lilliwaup Falls Generating | William G. Reed Jr | Lilliwaup, WA | Bonneville Power Administration (BPAT) | 5.4 GWh | Apr 1986 | 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 |
| Koma Kulshan | Eagle Creek Renewable Energy, LLC | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 24.8 GWh | Sep 1990 | 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 |
| FPL Energy Vansycle LLC (WA) | FPL Energy Vansycle LLC | Touchet, WA | Bonneville Power Administration (BPAT) | 370.3 GWh | Nov 2001 | Dec 2024 | Wind |
| Sierra Pacific Aberdeen | Sierra Pacific Industries | Aberdeen, WA | Bonneville Power Administration (BPAT) | 128.4 GWh | Feb 2003 | Dec 2024 | Wood/Wood Waste Solids |
| 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 |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 692.7 GWh | Jul 2007 | Dec 2024 | Wind |
| White Creek Wind Farm | White Creek Wind 1 LLC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 563.7 GWh | Oct 2007 | Dec 2024 | Wind |
| Goodnoe Hills | PacifiCorp | Goldendale, WA | Bonneville Power Administration (BPAT) | 275.5 GWh | May 2008 | Dec 2024 | Wind |
| Tuolumne Wind Project | Turlock Irrigation District | Goldendale, WA | Bonneville Power Administration (BPAT) | 399.7 GWh | Apr 2009 | Dec 2024 | Wind |
| Sagebrush Power Partners | Sagebrush Power Partners, LLC | Ellensburg, WA | Bonneville Power Administration (BPAT) | 277.8 GWh | Oct 2010 | Dec 2024 | Wind |
| Harvest Wind Project | Harvest Wind Project TIC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 263.7 GWh | Nov 2009 | Dec 2024 | Wind |
| Windy Flats Wind Project | Windy Flats Partners LLC | Centerville, WA | Bonneville Power Administration (BPAT) | 671.6 GWh | Sep 2009 | Dec 2024 | Wind |
| Vantage Wind Energy LLC | Invenergy Services LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 273.2 GWh | Jul 2010 | Dec 2024 | Wind |
| Cedar Hills | Bio Energy Washington, LLC | Maple Valley, WA | Puget Sound Energy, Inc. (PSEI) | 78.0 MWh | Mar 2009 | Dec 2024 | Distillate Fuel Oil |
| Palouse | Onward Energy | Oakesdale, WA | Avista Corporation (AVA) | 325.9 GWh | Nov 2012 | 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 |
Browse Power Plants By Washington Counties
Figures are based on October 2024 generation numbers.| County | State Rank | Active Plants | Oct 2024 Generation |
|---|---|---|---|
| Franklin County, WA | # 31 | 3 | 12.8 GWh |
| Jefferson County, WA | # 30 | 3 | 26.8 GWh |
| Clallam County, WA | # 29 | 3 | 37.5 GWh |
| Yakima County, WA | # 28 | 12 | 117.2 GWh |
| Mason County, WA | # 27 | 3 | 304.6 GWh |
| Stevens County, WA | # 26 | 4 | 352.1 GWh |
| King County, WA | # 25 | 12 | 366.3 GWh |
| Snohomish County, WA | # 24 | 9 | 401.9 GWh |
| Thurston County, WA | # 23 | 4 | 437.6 GWh |
| Adams County, WA | # 22 | 4 | 457.5 GWh |
| Skamania County, WA | # 21 | 1 | 553.9 GWh |
| Spokane County, WA | # 20 | 7 | 561.9 GWh |
| Lincoln County, WA | # 19 | 2 | 641.5 GWh |
| Garfield County, WA | # 18 | 2 | 831.5 GWh |
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Clark County, WA | # 16 | 2 | 1.6 TWh |
| County | State Rank | Active Plants | Oct 2024 Generation |
|---|---|---|---|
| Skagit County, WA | # 15 | 4 | 1.7 TWh |
| Whitman County, WA | # 14 | 6 | 1.7 TWh |
| Pierce County, WA | # 13 | 14 | 2.4 TWh |
| Walla Walla County, WA | # 12 | 4 | 3.2 TWh |
| Grays Harbor County, WA | # 11 | 6 | 3.3 TWh |
| Cowlitz County, WA | # 10 | 6 | 3.4 TWh |
| Columbia County, WA | # 9 | 4 | 3.4 TWh |
| Pend Oreille County, WA | # 8 | 3 | 3.4 TWh |
| Whatcom County, WA | # 7 | 13 | 5.0 TWh |
| Klickitat County, WA | # 6 | 16 | 5.6 TWh |
| Lewis County, WA | # 5 | 8 | 7.2 TWh |
| Benton County, WA | # 4 | 7 | 9.6 TWh |
| Douglas County, WA | # 3 | 1 | 9.8 TWh |
| Chelan County, WA | # 2 | 5 | 11.4 TWh |
| Grant County, WA | # 1 | 9 | 25.0 TWh |