Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Penstemon Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.4 GWh | Dec 2021 | Dec 2023 | Solar |
| Camas Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.3 GWh | May 2022 | Dec 2023 | Solar |
| Little Goose | USACE Northwestern Division | Dayton, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | Mar 1970 | Aug 2024 | Water |
| Marengo Wind Plant | PacifiCorp | Dayton, WA | PacifiCorp West (PACW) | 560.6 GWh | Jul 2007 | Dec 2023 | Wind |
| Tucannon River Wind Farm | Portland General Electric Co | Dayton, WA | Portland General Electric Company (PGE) | 678.5 GWh | Nov 2014 | Dec 2023 | Wind |
| Hopkins Ridge Wind | Puget Sound Energy Inc | Dayton, WA | Bonneville Power Administration (BPAT) | 365.5 GWh | Oct 2005 | Aug 2024 | Wind |
| Darrington | Hampton Lumber Mills - Washington Inc | Darrington, WA | Bonneville Power Administration (BPAT) | 16.0 GWh | Jan 2007 | Dec 2023 | Wood/Wood Waste Solids |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 118.7 GWh | Dec 1986 | Oct 2023 | Water |
| Summer Falls Power Plant | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 447.2 GWh | Dec 1984 | Oct 2023 | Water |
| Swift 1 | PacifiCorp | Cougar, WA | PacifiCorp West (PACW) | 567.6 GWh | Nov 1958 | Aug 2024 | Water |
| Cosmo Specialty Fibers Plant | Cosmo Specialty Fibers | Cosmopolis, WA | Bonneville Power Administration (BPAT) | 99.6 GWh | Dec 1956 | Dec 2022 | Wood Waste Liquids, excluding Black Liquor : 71.5% Wood/Wood Waste Solids : 15.8% Residual Fuel Oil : 12.7% |
| Koma Kulshan | Eagle Creek Renewable Energy, LLC | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 26.3 GWh | Sep 1990 | Dec 2023 | Water |
| Upper Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 270.8 GWh | Dec 1958 | Dec 2023 | Water |
| Lower Baker | Puget Sound Energy Inc | Concrete, WA | Puget Sound Energy, Inc. (PSEI) | 262.8 GWh | Feb 1960 | Dec 2023 | Water |
| Chehalis Generating Facility | PacifiCorp | Chehalis, WA | Bonneville Power Administration (BPAT) | 2.4 TWh | Jul 2003 | Aug 2024 | Natural Gas |
| Transalta Centralia Generation | TransAlta Centralia Gen LLC | Centralia, WA | Bonneville Power Administration (BPAT) | 3.0 TWh | Nov 1972 | Aug 2024 | Subbituminous Coal : 99.8% |
| Windy Flats Wind Project | Windy Flats Partners LLC | Centerville, WA | Bonneville Power Administration (BPAT) | 567.8 GWh | Sep 2009 | Dec 2023 | Wind |
| Ice Harbor | USACE Northwestern Division | Burbank, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | Dec 1961 | Aug 2024 | Water |
| Rocky Brook Hydroelectric | Rocky Brook Electric Inc | Brinnon, WA | Bonneville Power Administration (BPAT) | 219.0 MWh | Nov 1985 | Dec 2023 | Water |
| Chief Joseph | USACE Northwestern Division | Bridgeport, WA | Bonneville Power Administration (BPAT) | 8.9 TWh | Aug 1955 | Aug 2024 | Water |
| Whitehorn | Puget Sound Energy Inc | Blaine, WA | Puget Sound Energy, Inc. (PSEI) | 449.0 GWh | Sep 1981 | Dec 2023 | Natural Gas : 99.9% |
| Lund Hill Solar | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 342.2 GWh | Sep 2022 | Aug 2024 | Solar |
| Juniper Canyon I Wind Project | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 263.0 GWh | Feb 2011 | Aug 2024 | Wind |
| Big Horn Wind II | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 111.0 GWh | Dec 2010 | Aug 2024 | Wind |
| Big Horn Wind Project | Avangrid Renewables LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 477.7 GWh | Sep 2006 | Aug 2024 | Wind |
| Wanapum | PUD No 2 of Grant County | Beverly, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 3.9 TWh | May 1963 | Aug 2024 | Water |
| Chandler | U S Bureau of Reclamation | Benton City, WA | Bonneville Power Administration (BPAT) | 50.7 GWh | Jan 1956 | Nov 2023 | Water |
| Encogen | Puget Sound Energy Inc | Bellingham, WA | Puget Sound Energy, Inc. (PSEI) | 856.2 GWh | Feb 1993 | Aug 2024 | Natural Gas : 99.8% |
| Arlington Microgrid | PUD No 1 of Snohomish County | Arlington, WA | Bonneville Power Administration (BPAT) | 697.0 MWh | May 2019 | Dec 2023 | Solar |
| Merwin | PacifiCorp | Ariel, WA | PacifiCorp West (PACW) | 471.6 GWh | Jun 1931 | Dec 2023 | Water |
| HF Sinclair Puget Sound Refining | HF Sinclair Corporation | Anacortes, WA | Puget Sound Energy, Inc. (PSEI) | 990.3 GWh | Aug 1991 | Aug 2024 | Natural Gas : 77.8% Other Gas : 22.2% |
| Yale | PacifiCorp | Amboy, WA | PacifiCorp West (PACW) | 516.9 GWh | Aug 1953 | Dec 2023 | Water |
| 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) | 105.2 GWh | Feb 2003 | Dec 2023 | Wood/Wood Waste Solids |
Browse Power Plants By Washington Counties
Figures are based on October 2023 generation numbers.| County | State Rank | Active Plants | Oct 2023 Generation |
|---|---|---|---|
| Franklin County, WA | # 31 | 3 | 17.2 GWh |
| Jefferson County, WA | # 30 | 2 | 35.5 GWh |
| Clallam County, WA | # 29 | 3 | 36.2 GWh |
| Yakima County, WA | # 28 | 12 | 105.4 GWh |
| Mason County, WA | # 27 | 3 | 290.0 GWh |
| King County, WA | # 26 | 12 | 328.7 GWh |
| Snohomish County, WA | # 25 | 9 | 329.5 GWh |
| Stevens County, WA | # 24 | 4 | 350.4 GWh |
| Adams County, WA | # 23 | 4 | 439.6 GWh |
| Thurston County, WA | # 22 | 3 | 449.2 GWh |
| Spokane County, WA | # 21 | 7 | 499.1 GWh |
| Skamania County, WA | # 20 | 1 | 567.6 GWh |
| Lincoln County, WA | # 19 | 2 | 588.8 GWh |
| Garfield County, WA | # 18 | 1 | 780.8 GWh |
| Kittitas County, WA | # 17 | 9 | 1.1 TWh |
| Clark County, WA | # 16 | 2 | 1.6 TWh |
| County | State Rank | Active Plants | Oct 2023 Generation |
|---|---|---|---|
| Whitman County, WA | # 15 | 6 | 1.6 TWh |
| Skagit County, WA | # 14 | 4 | 2.3 TWh |
| Pierce County, WA | # 13 | 13 | 2.7 TWh |
| Walla Walla County, WA | # 12 | 4 | 3.1 TWh |
| Columbia County, WA | # 11 | 4 | 3.1 TWh |
| Cowlitz County, WA | # 10 | 6 | 3.4 TWh |
| Pend Oreille County, WA | # 9 | 3 | 3.5 TWh |
| Grays Harbor County, WA | # 8 | 6 | 3.5 TWh |
| Klickitat County, WA | # 7 | 16 | 5.3 TWh |
| Whatcom County, WA | # 6 | 13 | 5.8 TWh |
| Chelan County, WA | # 5 | 4 | 7.0 TWh |
| Lewis County, WA | # 4 | 8 | 7.0 TWh |
| Benton County, WA | # 3 | 6 | 10.3 TWh |
| Douglas County, WA | # 2 | 2 | 12.3 TWh |
| Grant County, WA | # 1 | 8 | 23.3 TWh |