Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Goose Prairie Solar | Goose Prairie Solar LLC | Moxee, WA | Bonneville Power Administration (BPAT) | 179.1 GWh | Nov 2024 | Jun 2026 | Solar |
| Urtica Solar Project | Altus Power America Management, LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 11.4 GWh | Oct 2022 | Dec 2025 | Solar |
| Lund Hill Solar | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 365.9 GWh | Sep 2022 | Jun 2026 | Solar |
| Camas Solar Project | Altus Power America Management, LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.7 GWh | May 2022 | Dec 2025 | Solar |
| Penstemon Solar Project | Altus Power America Management, LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 11.2 GWh | Dec 2021 | Dec 2025 | Solar |
| Rattlesnake Flat | Rattlesnake Flat, LLC | Ritzville, WA | Avista Corporation (AVA) | 401.6 GWh | Nov 2020 | Jun 2026 | Wind |
| Skookumchuck Wind Facility | Southern Power Co | Rainier, WA | Puget Sound Energy, Inc. (PSEI) | 420.8 GWh | Oct 2020 | Jun 2026 | Wind |
| Horn Rapids Solar, Storage and Training | Energy Northwest | Richland, WA | Bonneville Power Administration (BPAT) | 4.6 GWh | Sep 2020 | Dec 2025 | Solar |
| Arlington Microgrid | PUD No 1 of Snohomish County - (WA) | Arlington, WA | Bonneville Power Administration (BPAT) | 601.0 MWh | May 2019 | Dec 2025 | Solar |
| Adams Nielson Solar | Strata Manager, LLC | Lind, WA | Avista Corporation (AVA) | 40.9 GWh | Oct 2018 | Jun 2026 | Solar |
| Calligan Creek Hydroelectric Project | PUD No 1 of Snohomish County - (WA) | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 12.6 GWh | Jan 2018 | Dec 2025 | Water |
| Hancock Creek Hydroelectric Project | PUD No 1 of Snohomish County - (WA) | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 18.3 GWh | Jan 2018 | Dec 2025 | Water |
| Tucannon River Wind Farm | Portland General Electric Co | Dayton, WA | Portland General Electric Company (PGE) | 736.8 GWh | Nov 2014 | Dec 2025 | Wind |
| LRI LFGTE Facility | Frontier Operation Services | Graham, WA | Puget Sound Energy, Inc. (PSEI) | 33.2 GWh | Oct 2013 | Dec 2025 | Landfill Gas |
| Palouse | Onward Energy | Oakesdale, WA | Avista Corporation (AVA) | 303.4 GWh | Nov 2012 | Dec 2025 | Wind |
| Swauk Wind LLC | Gamesa Wind US LLC | Thorp, WA | Puget Sound Energy, Inc. (PSEI) | 2.9 GWh | Nov 2012 | Dec 2025 | Wind |
| West Point Treatment Plant | King County Dept-Natural Res - (WA) | Seattle, WA | Seattle City Light (SCL) | 14.3 GWh | May 2012 | Dec 2025 | Other Biomass Gas |
| Lower Snake River Wind Energy Project | Puget Sound Energy Inc | Pomeroy, WA | Bonneville Power Administration (BPAT) | 811.6 GWh | Jan 2012 | Jun 2026 | Wind |
| Youngs Creek Hydroelectric Project | PUD No 1 of Snohomish County - (WA) | Monroe, WA | Bonneville Power Administration (BPAT) | 12.9 GWh | Oct 2011 | Dec 2025 | Water |
| Juniper Canyon I Wind Project | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 114.9 GWh | Feb 2011 | Jun 2026 | Wind |
| Big Horn Wind II | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 114.5 GWh | Dec 2010 | Jun 2026 | Wind |
| Sagebrush Power Partners | Sagebrush Power Partners, LLC | Ellensburg, WA | Bonneville Power Administration (BPAT) | 277.0 GWh | Oct 2010 | Dec 2025 | Wind |
| Vantage Wind Energy LLC | Invenergy Services LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 253.2 GWh | Jul 2010 | Dec 2025 | Wind |
| Linden Wind Energy Project | Los Angeles Department of Water & Power | Goldendale, WA | Bonneville Power Administration (BPAT) | 104.3 GWh | May 2010 | Dec 2025 | Wind |
| Harvest Wind Project | Harvest Wind Project TIC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 244.4 GWh | Nov 2009 | Dec 2025 | Wind |
| Windy Flats Wind Project | Windy Flats Partners LLC | Centerville, WA | Bonneville Power Administration (BPAT) | 650.9 GWh | Sep 2009 | Dec 2025 | Wind |
| Washington Wind | Washington Wind LLC | Goldendale, WA | Bonneville Power Administration (BPAT) | 379.0 GWh | Apr 2009 | Dec 2025 | Wind |
| Cedar Hills | King County Solid Waste Division | Maple Valley, WA | Puget Sound Energy, Inc. (PSEI) | 53.0 MWh | Mar 2009 | Dec 2025 | Landfill Gas : 86.4% Distillate Fuel Oil : 13.6% |
| Goodnoe Hills | PacifiCorp | Goldendale, WA | Bonneville Power Administration (BPAT) | 268.3 GWh | May 2008 | Dec 2025 | Wind |
| Grays Harbor Energy Facility | Invenergy Services LLC | Elma, WA | Bonneville Power Administration (BPAT) | 2.0 TWh | Apr 2008 | Jun 2026 | Natural Gas |
| Mint Farm Generating Station | Puget Sound Energy Inc | Longview, WA | Puget Sound Energy, Inc. (PSEI) | 2.3 TWh | Dec 2007 | Dec 2024 | Natural Gas |
| White Creek Wind Farm | White Creek Wind 1 LLC | Roosevelt, WA | Bonneville Power Administration (BPAT) | 536.0 GWh | Oct 2007 | Dec 2025 | Wind |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 612.6 GWh | Jul 2007 | Dec 2025 | Wind |
| Sierra Pacific Burlington Facility | Sierra Pacific Industries | Mt Vernon, WA | Puget Sound Energy, Inc. (PSEI) | 160.2 GWh | Feb 2007 | Dec 2025 | Wood/Wood Waste Solids |
| Darrington | Hampton Lumber Mills - Washington Inc | Darrington, WA | Bonneville Power Administration (BPAT) | 12.3 GWh | Jan 2007 | Dec 2025 | Wood/Wood Waste Solids |
| Wild Horse | Puget Sound Energy Inc | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 611.9 GWh | Nov 2006 | Jun 2026 | Wind : 99.9% |
| Big Horn Wind Project | Avangrid Power LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 514.1 GWh | Sep 2006 | Jun 2026 | Wind |
| Tieton Dam Hydro Electric Project | City of Burbank Water and Power - (CA) | Rimrock, WA | PacifiCorp West (PACW) | 24.2 GWh | Aug 2006 | Sep 2025 | Water |
| Hopkins Ridge Wind | Puget Sound Energy Inc | Dayton, WA | Bonneville Power Administration (BPAT) | 359.6 GWh | Oct 2005 | Jun 2026 | Wind |
| Grimes Way | Washington State University | Pullman, WA | Avista Corporation (AVA) | 138.0 MWh | Dec 2004 | Jun 2026 | Natural Gas : 57.1% Distillate Fuel Oil : 42.9% |
| Goldendale Generating Station | Puget Sound Energy Inc | Goldendale, WA | Puget Sound Energy, Inc. (PSEI) | 2.1 TWh | Jul 2004 | Dec 2024 | Natural Gas |
| Chehalis Generating Facility | PacifiCorp | Chehalis, WA | Bonneville Power Administration (BPAT) | 2.3 TWh | Jul 2003 | Jun 2026 | Natural Gas |
| Sierra Pacific Aberdeen | Sierra Pacific Industries | Aberdeen, WA | Bonneville Power Administration (BPAT) | 91.4 GWh | Feb 2003 | Dec 2025 | Wood/Wood Waste Solids |
| Nine Canyon | Energy Northwest | Kennewick, WA | Bonneville Power Administration (BPAT) | 185.8 GWh | Aug 2002 | Dec 2025 | Wind |
| Frederickson Power LP | Frederickson Power LP | Tacoma, WA | Bonneville Power Administration (BPAT) | 1.6 TWh | Jul 2002 | Dec 2025 | Natural Gas |
| Boulder Park | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 125.8 GWh | Apr 2002 | Dec 2025 | Natural Gas |
| FPL Energy Vansycle LLC (WA) | FPL Energy Vansycle LLC | Touchet, WA | Bonneville Power Administration (BPAT) | 249.7 GWh | Nov 2001 | Dec 2025 | Wind |
| River Road Gen Plant | PUD No 1 of Clark County - (WA) | Vancouver, WA | Bonneville Power Administration (BPAT) | 812.4 GWh | Nov 1997 | Jun 2026 | Natural Gas |
| McNary Dam Fish Attraction Project | Northern Wasco County PUD - (OR) | Plymouth, WA | Bonneville Power Administration (BPAT) | 72.5 GWh | Oct 1997 | Dec 2025 | Water |
| South Fork Tolt | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 48.6 GWh | Oct 1995 | Dec 2025 | Water |
| Cowlitz Falls | PUD No 1 of Lewis County - (WA) | Randle, WA | Bonneville Power Administration (BPAT) | 195.6 GWh | May 1994 | Dec 2025 | Water |
| Ferndale Generating Station | Puget Sound Energy Inc | Ferndale, WA | Puget Sound Energy, Inc. (PSEI) | 584.8 GWh | Mar 1994 | Jun 2026 | Natural Gas |
| Black Creek | Black Creek Hydro Inc | Snoqualmie, WA | Puget Sound Energy, Inc. (PSEI) | 8.7 GWh | Jan 1994 | Dec 2025 | Water |
| Wynoochee | City of Tacoma - (WA) | Montesano, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 22.5 GWh | Dec 1993 | Dec 2025 | Water |
| Encogen | Puget Sound Energy Inc | Bellingham, WA | Puget Sound Energy, Inc. (PSEI) | 195.7 GWh | Feb 1993 | Jun 2026 | Natural Gas |
| Sumas Power Plant | Puget Sound Energy Inc | Sumas, WA | Puget Sound Energy, Inc. (PSEI) | 675.8 GWh | Feb 1993 | Dec 2024 | Natural Gas |
| Monroe Street | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 87.5 GWh | Nov 1992 | Dec 2025 | Water |
| Spokane Waste to Energy | City of Spokane - (WA) | Spokane, WA | Avista Corporation (AVA) | 132.1 GWh | Aug 1991 | Jun 2026 | 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) | 896.5 GWh | Aug 1991 | Jun 2026 | Natural Gas : 74.5% Other Gas : 25.5% |
| Koma Kulshan | Eagle Creek Renewable Energy, LLC | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 32.3 GWh | Sep 1990 | Dec 2025 | Water |
| PEC Headworks | Columbia Basin Hydropower | Moses Lake, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 17.7 GWh | Aug 1990 | Oct 2025 | Water |
| Skookumchuck | TransAlta Centralia Gen LLC | Tenino, WA | Bonneville Power Administration (BPAT) | 1.8 GWh | Aug 1990 | Apr 2025 | Water |
| Weeks Falls | Eagle Creek Renewable Energy, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 10.7 GWh | May 1990 | Dec 2025 | Water |
| Twin Falls Hydro | Central Rivers Power US, LLC | North Bend, WA | Puget Sound Energy, Inc. (PSEI) | 59.3 GWh | Nov 1989 | Dec 2025 | Water |
| Twin Reservoirs | City of Walla Walla - (WA) | Walla Walla, WA | Bonneville Power Administration (BPAT) | 6.9 GWh | Mar 1988 | Dec 2025 | Water |
| Orchard Avenue 1 | Yakima-Tieton Irrigation Dist | Yakima, WA | PacifiCorp West (PACW) | 2.9 GWh | Feb 1987 | Oct 2025 | Water |
| Cowiche | Yakima-Tieton Irrigation Dist | Tieton, WA | PacifiCorp West (PACW) | 3.4 GWh | Feb 1987 | Oct 2025 | Water |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 105.2 GWh | Dec 1986 | Oct 2025 | Water |
| Sheep Creek Hydro | Sheep Creek Hydro Inc | Northport, WA | Avista Corporation (AVA) | 6.8 GWh | May 1986 | Dec 2025 | Water |
| Lilliwaup Falls Generating | William G. Reed Jr | Lilliwaup, WA | Bonneville Power Administration (BPAT) | 5.3 GWh | Apr 1986 | Dec 2025 | Water |
| Rocky Brook Hydroelectric | Rocky Brook Electric Inc | Brinnon, WA | Bonneville Power Administration (BPAT) | 464.0 MWh | Nov 1985 | May 2025 | Water |
| Quincy Chute | Columbia Basin Hydropower | Quincy, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 32.6 GWh | Sep 1985 | Oct 2025 | Water |
| Potholes East Canal 66.0 | Columbia Basin Hydropower | Pasco, WA | Bonneville Power Administration (BPAT) | 3.2 GWh | Feb 1985 | Oct 2025 | Water |
| Summer Falls Power Plant | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 391.2 GWh | Dec 1984 | Oct 2025 | Water |
| Columbia Generating Station | Energy Northwest- Columbia | Richland, WA | Bonneville Power Administration (BPAT) | 9.8 TWh | Nov 1984 | Jun 2026 | Nuclear |
| H M Jackson | PUD No 1 of Snohomish County - (WA) | Sultan, WA | Bonneville Power Administration (BPAT) | 333.6 GWh | May 1984 | Dec 2025 | Water |
| Fredonia (WA) | Puget Sound Energy Inc | Mt Vernon, WA | Puget Sound Energy, Inc. (PSEI) | 57.9 GWh | Apr 1984 | Jun 2026 | Natural Gas : 96.8% Distillate Fuel Oil : 3.2% |
| Kettle Falls Generating Station | Avista Corp | Kettle Falls, WA | Avista Corporation (AVA) | 287.2 GWh | Nov 1983 | Dec 2025 | Wood/Wood Waste Solids : 99.8% |
| Eltopia Branch Canal 4.6 | Columbia Basin Hydropower | Pasco, WA | Bonneville Power Administration (BPAT) | 7.7 GWh | Apr 1983 | Oct 2025 | Water |
| Russell D Smith | Columbia Basin Hydropower | Othello, WA | Bonneville Power Administration (BPAT) | 14.4 GWh | Aug 1982 | Oct 2025 | Water |
| Frederickson | Puget Sound Energy Inc | Tacoma, WA | Puget Sound Energy, Inc. (PSEI) | 20.8 GWh | Oct 1981 | Dec 2025 | Natural Gas : 98.3% Distillate Fuel Oil : 1.7% |
| Whitehorn | Puget Sound Energy Inc | Blaine, WA | Puget Sound Energy, Inc. (PSEI) | 65.2 GWh | Sep 1981 | Dec 2025 | Natural Gas : 99.8% |
| Northeast (WA) | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 526.0 MWh | Nov 1978 | Dec 2025 | Natural Gas |
| Lower Granite | USACE Northwestern Division | Pomeroy, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | Mar 1975 | Jun 2026 | Water |
| Transalta Centralia Generation | TransAlta Centralia Gen LLC | Centralia, WA | Bonneville Power Administration (BPAT) | 3.2 TWh | Nov 1972 | Dec 2025 | Subbituminous Coal : 99.7% |
| Little Goose | USACE Northwestern Division | Dayton, WA | Bonneville Power Administration (BPAT) | 1.6 TWh | Mar 1970 | Jun 2026 | Water |
| Crystal Mountain | Puget Sound Energy Inc | Greenwater, WA | Puget Sound Energy, Inc. (PSEI) | 775.0 MWh | Nov 1969 | May 2026 | Distillate Fuel Oil |
| Lower Monumental | USACE Northwestern Division | Kahlotus, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | May 1969 | Jun 2026 | Water |
| University of Washington Power Plant | University of Washington | Seattle, WA | Seattle City Light (SCL) | 127.4 MWh | Dec 1968 | Jun 2026 | Distillate Fuel Oil |
| Mossyrock | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 1.0 TWh | Sep 1968 | Jun 2026 | Water |
| Wells | PUD No 1 of Douglas County - (WA) | Chelan, WA | PUD No. 1 of Douglas County (DOPD) | 4.4 TWh | Aug 1967 | Jun 2026 | Water |
| Boundary | City of Seattle - (WA) | Metaline, WA | Seattle City Light (SCL) | 3.9 TWh | Jul 1967 | Jun 2026 | Water |
| Packwood | Energy Northwest - Packwood | Packwood, WA | Bonneville Power Administration (BPAT) | 73.8 GWh | Mar 1964 | Dec 2025 | Water |
| Wanapum | PUD No 2 of Grant County - (WA) | Beverly, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 5.4 TWh | May 1963 | Jun 2026 | Water |
| Mayfield | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 602.5 GWh | Feb 1963 | Dec 2025 | Water |
| Ice Harbor | USACE Northwestern Division | Burbank, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | Dec 1961 | Jun 2026 | Water |
| Rocky Reach | PUD No 1 of Chelan County - (WA) | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 6.4 TWh | May 1961 | Jun 2026 | Water |
| Lower Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 364.8 GWh | Feb 1960 | Dec 2025 | Water |
| Priest Rapids | PUD No 2 of Grant County - (WA) | Mattawa, WA | Bonneville Power Administration (BPAT) | 4.9 TWh | Sep 1959 | Jun 2026 | Water |
| Upper Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 332.7 GWh | Dec 1958 | Dec 2025 | Water |
Browse Power Plants By Washington Counties
Figures are based on December 2025 generation numbers.| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Jefferson County, WA | # 30 | 3 | 8.2 GWh |
| Franklin County, WA | # 29 | 3 | 10.9 GWh |
| Yakima County, WA | # 28 | 12 | 269.1 GWh |
| Mason County, WA | # 27 | 3 | 273.6 GWh |
| Stevens County, WA | # 26 | 4 | 302.8 GWh |
| Snohomish County, WA | # 25 | 9 | 359.3 GWh |
| King County, WA | # 24 | 12 | 392.2 GWh |
| Thurston County, WA | # 23 | 4 | 454.8 GWh |
| Adams County, WA | # 22 | 4 | 456.9 GWh |
| Skamania County, WA | # 21 | 1 | 503.6 GWh |
| Spokane County, WA | # 20 | 7 | 560.0 GWh |
| Lincoln County, WA | # 19 | 2 | 624.1 GWh |
| Garfield County, WA | # 18 | 2 | 811.6 GWh |
| Clark County, WA | # 17 | 2 | 812.4 GWh |
| Kittitas County, WA | # 16 | 9 | 1.2 TWh |
| County | State Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Skagit County, WA | # 15 | 4 | 1.5 TWh |
| Whitman County, WA | # 14 | 6 | 1.8 TWh |
| Pierce County, WA | # 13 | 14 | 2.1 TWh |
| Grays Harbor County, WA | # 12 | 6 | 2.1 TWh |
| Walla Walla County, WA | # 11 | 4 | 3.2 TWh |
| Columbia County, WA | # 10 | 4 | 3.3 TWh |
| Cowlitz County, WA | # 9 | 6 | 3.7 TWh |
| Whatcom County, WA | # 8 | 13 | 4.1 TWh |
| Pend Oreille County, WA | # 7 | 3 | 4.4 TWh |
| Klickitat County, WA | # 6 | 17 | 5.4 TWh |
| Lewis County, WA | # 5 | 8 | 7.3 TWh |
| Benton County, WA | # 4 | 7 | 10.1 TWh |
| Douglas County, WA | # 3 | 1 | 11.7 TWh |
| Chelan County, WA | # 2 | 6 | 13.6 TWh |
| Grant County, WA | # 1 | 9 | 29.8 TWh |