Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Packwood | Energy Northwest | Packwood, WA | Bonneville Power Administration (BPAT) | 60.4 GWh | Mar 1964 | Dec 2023 | Water |
| Lower Monumental | USACE Northwestern Division | Kahlotus, WA | Bonneville Power Administration (BPAT) | 1.3 TWh | May 1969 | Feb 2025 | Water |
| Rocky Brook Hydroelectric | Rocky Brook Electric Inc | Brinnon, WA | Bonneville Power Administration (BPAT) | 219.0 MWh | Nov 1985 | Dec 2023 | Water |
| Longview Fibre | Longview Fibre Co | Longview, WA | Bonneville Power Administration (BPAT) | 170.9 GWh | Dec 1948 | Dec 2023 | Black Liquor : 58.4% Wood/Wood Waste Solids : 22.0% Natural Gas : 19.6% |
| FPL Energy Vansycle LLC (WA) | FPL Energy Vansycle LLC | Touchet, WA | Bonneville Power Administration (BPAT) | 331.4 GWh | Nov 2001 | Dec 2023 | Wind |
| Lilliwaup Falls Generating | William G. Reed Jr | Lilliwaup, WA | Bonneville Power Administration (BPAT) | 6.0 GWh | Apr 1986 | Dec 2023 | Water |
| Transalta Centralia Generation | TransAlta Centralia Gen LLC | Centralia, WA | Bonneville Power Administration (BPAT) | 3.0 TWh | Nov 1972 | Feb 2025 | Subbituminous Coal : 99.8% |
| Port Townsend Paper | Port Townsend Paper Co | Port Townsend, WA | Bonneville Power Administration (BPAT) | 35.3 GWh | Dec 1928 | Dec 2023 | Black Liquor : 81.5% Wood/Wood Waste Solids : 13.7% Natural Gas : 3.5% Waste/Other Oil : 1.3% |
| Twin Reservoirs | Walla Walla City of | Walla Walla, WA | Bonneville Power Administration (BPAT) | 8.1 GWh | Mar 1988 | Dec 2023 | Water |
| Nippon Dynawave Packaging Longview WA | Nippon Dynawave Packaging Co. | Longview, WA | Bonneville Power Administration (BPAT) | 288.8 GWh | Dec 1947 | Feb 2025 | Black Liquor : 48.5% Natural Gas : 23.4% Wood/Wood Waste Solids : 16.7% Subbituminous Coal : 7.5% Sludge Waste : 3.4% |
| 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% |
| Yelm | City of Centralia - (WA) | Yelm, WA | Bonneville Power Administration (BPAT) | 26.2 GWh | Nov 1930 | Dec 2023 | Water |
| Box Canyon | PUD No 1 of Pend Oreille County | Ione, WA | Avista Corporation (AVA) | 383.5 GWh | May 1955 | Dec 2023 | Water |
| Kettle Falls Generating Station | Avista Corp | Kettle Falls, WA | Avista Corporation (AVA) | 335.1 GWh | Nov 1983 | Dec 2023 | Wood/Wood Waste Solids : 92.2% Natural Gas : 7.8% |
| Long Lake | Avista Corp | Ford, WA | Avista Corporation (AVA) | 413.0 GWh | Sep 1915 | Dec 2023 | Water |
| Little Falls (WA) | Avista Corp | Ford, WA | Avista Corporation (AVA) | 175.8 GWh | Jun 1910 | Dec 2023 | Water |
| Rattlesnake Flat | Rattlesnake Flat, LLC | Ritzville, WA | Avista Corporation (AVA) | 395.2 GWh | Nov 2020 | Feb 2025 | Wind |
| Meyers Falls | Hydro Technology Systems Inc | Kettle Falls, WA | Avista Corporation (AVA) | 9.8 GWh | May 1915 | Dec 2023 | Water |
| Nine Mile | Avista Corp | Nine Mile, WA | Avista Corporation (AVA) | 118.3 GWh | Jun 1908 | Dec 2023 | Water |
| Adams Nielson Solar | Strata Manager, LLC | Lind, WA | Avista Corporation (AVA) | 42.7 GWh | Oct 2018 | Feb 2025 | Solar |
| Northeast (WA) | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 112.0 MWh | Nov 1978 | Dec 2023 | Natural Gas |
| Palouse | Onward Energy | Oakesdale, WA | Avista Corporation (AVA) | 294.9 GWh | Nov 2012 | Dec 2023 | Wind |
| Boulder Park | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 63.9 GWh | Apr 2002 | Dec 2023 | Natural Gas |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 118.7 GWh | Dec 1986 | Oct 2023 | Water |
| Monroe Street | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 89.1 GWh | Nov 1992 | Dec 2023 | Water |
| Upper Falls | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 59.9 GWh | Mar 1922 | Dec 2023 | Water |
| Summer Falls Power Plant | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 447.2 GWh | Dec 1984 | Oct 2023 | Water |
| Sheep Creek Hydro | Sheep Creek Hydro Inc | Northport, WA | Avista Corporation (AVA) | 5.6 GWh | May 1986 | Dec 2023 | Water |
| Upriver Dam Hydro Plant | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 36.8 GWh | Dec 1935 | Dec 2023 | Water |
| Grimes Way | Washington State University | Pullman, WA | Avista Corporation (AVA) | 62.0 MWh | Dec 2004 | Feb 2025 | Natural Gas : 51.6% Distillate Fuel Oil : 48.4% |
| Spokane Waste to Energy | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 126.8 GWh | Aug 1991 | Feb 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Juniper Canyon I Wind Project | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 254.2 GWh | Feb 2011 | Feb 2025 | Wind |
| Big Horn Wind II | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 107.1 GWh | Dec 2010 | Feb 2025 | Wind |
| Lund Hill Solar | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 361.3 GWh | Sep 2022 | Feb 2025 | Solar |
| Big Horn Wind Project | Avangrid Renewables LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 474.1 GWh | Sep 2006 | Feb 2025 | Wind |
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 | 120.4 GWh |
| Mason County, WA | # 27 | 3 | 290.0 GWh |
| Snohomish County, WA | # 26 | 9 | 329.5 GWh |
| King County, WA | # 25 | 12 | 330.0 GWh |
| Stevens County, WA | # 24 | 4 | 350.4 GWh |
| Thurston County, WA | # 23 | 3 | 428.3 GWh |
| Adams County, WA | # 22 | 4 | 454.9 GWh |
| Skamania County, WA | # 21 | 1 | 480.0 GWh |
| Spokane County, WA | # 20 | 7 | 494.9 GWh |
| Lincoln County, WA | # 19 | 2 | 588.8 GWh |
| Garfield County, WA | # 18 | 1 | 825.2 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 | 1.7 TWh |
| Pierce County, WA | # 13 | 13 | 2.7 TWh |
| Walla Walla County, WA | # 12 | 4 | 3.0 TWh |
| Grays Harbor County, WA | # 11 | 6 | 3.1 TWh |
| Columbia County, WA | # 10 | 4 | 3.1 TWh |
| Pend Oreille County, WA | # 9 | 3 | 3.3 TWh |
| Cowlitz County, WA | # 8 | 6 | 3.4 TWh |
| Klickitat County, WA | # 7 | 16 | 5.3 TWh |
| Whatcom County, WA | # 6 | 13 | 5.6 TWh |
| Lewis County, WA | # 5 | 8 | 7.2 TWh |
| Chelan County, WA | # 4 | 4 | 7.4 TWh |
| Benton County, WA | # 3 | 6 | 10.2 TWh |
| Douglas County, WA | # 2 | 2 | 13.1 TWh |
| Grant County, WA | # 1 | 8 | 24.5 TWh |