Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Transalta Centralia Generation | TransAlta Centralia Gen LLC | Centralia, WA | Bonneville Power Administration (BPAT) | 3.2 TWh | Nov 1972 | Jun 2024 | Subbituminous Coal : 99.8% |
| Columbia Generating Station | Energy Northwest | Richland, WA | Bonneville Power Administration (BPAT) | 10.2 TWh | Nov 1984 | Jun 2024 | Nuclear |
| 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) | 189.9 GWh | Dec 1948 | Dec 2023 | Black Liquor : 58.1% Wood/Wood Waste Solids : 21.9% Natural Gas : 20.0% |
| Lilliwaup Falls Generating | William G. Reed Jr | Lilliwaup, WA | Bonneville Power Administration (BPAT) | 6.5 GWh | Apr 1986 | Dec 2023 | Water |
| Twin Reservoirs | Walla Walla City of | Walla Walla, WA | Bonneville Power Administration (BPAT) | 10.6 GWh | Mar 1988 | Dec 2022 | Water |
| Nine Canyon | Energy Northwest | Kennewick, WA | Bonneville Power Administration (BPAT) | 223.3 GWh | Aug 2002 | Dec 2022 | Wind |
| Nippon Dynawave Packaging Longview WA | Nippon Dynawave Packaging Co. | Longview, WA | Bonneville Power Administration (BPAT) | 297.1 GWh | Dec 1947 | Jun 2024 | Black Liquor : 45.6% Natural Gas : 24.1% Wood/Wood Waste Solids : 18.5% Subbituminous Coal : 8.3% Sludge Waste : 2.9% Residual Fuel Oil : 0.6% |
| Cosmo Specialty Fibers Plant | Cosmo Specialty Fibers | Cosmopolis, WA | Bonneville Power Administration (BPAT) | 106.0 GWh | Dec 1956 | Dec 2022 | Wood Waste Liquids, excluding Black Liquor : 70.9% Wood/Wood Waste Solids : 15.7% Residual Fuel Oil : 13.4% |
| Grays Harbor Energy Facility | Invenergy Services LLC | Elma, WA | Bonneville Power Administration (BPAT) | 3.4 TWh | Apr 2008 | Jun 2024 | Natural Gas |
| Boulder Park | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 74.9 GWh | Apr 2002 | Dec 2023 | Natural Gas |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 124.1 GWh | Dec 1986 | Oct 2023 | Water |
| Kettle Falls Generating Station | Avista Corp | Kettle Falls, WA | Avista Corporation (AVA) | 368.3 GWh | Nov 1983 | Dec 2023 | Wood/Wood Waste Solids : 92.8% Natural Gas : 7.2% |
| Spokane Waste to Energy | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 139.6 GWh | Aug 1991 | Jun 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Rattlesnake Flat | Rattlesnake Flat, LLC | Ritzville, WA | Avista Corporation (AVA) | 402.5 GWh | Nov 2020 | Jun 2024 | Wind |
| Little Falls (WA) | Avista Corp | Ford, WA | Avista Corporation (AVA) | 190.9 GWh | Jun 1910 | Dec 2023 | Water |
| Long Lake | Avista Corp | Ford, WA | Avista Corporation (AVA) | 449.3 GWh | Sep 1915 | Dec 2023 | Water |
| Meyers Falls | Hydro Technology Systems Inc | Kettle Falls, WA | Avista Corporation (AVA) | 10.4 GWh | May 1915 | Dec 2023 | Water |
| Adams Nielson Solar | Strata Manager, LLC | Lind, WA | Avista Corporation (AVA) | 44.2 GWh | Oct 2018 | Jun 2024 | Solar |
| Nine Mile | Avista Corp | Nine Mile, WA | Avista Corporation (AVA) | 129.3 GWh | Jun 1908 | Dec 2023 | Water |
| Box Canyon | PUD No 1 of Pend Oreille County | Ione, WA | Avista Corporation (AVA) | 416.6 GWh | May 1955 | Dec 2023 | Water |
| Grimes Way | Washington State University | Pullman, WA | Avista Corporation (AVA) | 129.0 MWh | Dec 2004 | Apr 2024 | Distillate Fuel Oil : 55.4% Natural Gas : 44.6% |
| Upriver Dam Hydro Plant | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 42.4 GWh | Dec 1935 | Dec 2023 | Water |
| Summer Falls Power Plant | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 467.4 GWh | Dec 1984 | Oct 2023 | Water |
| Monroe Street | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 96.3 GWh | Nov 1992 | Dec 2023 | Water |
| Upper Falls | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 64.6 GWh | Mar 1922 | Dec 2023 | Water |
| Sheep Creek Hydro | Sheep Creek Hydro Inc | Northport, WA | Avista Corporation (AVA) | 6.1 GWh | May 1986 | Dec 2023 | Water |
| Palouse | Onward Energy | Oakesdale, WA | Avista Corporation (AVA) | 315.5 GWh | Nov 2012 | Dec 2023 | Wind |
| Northeast (WA) | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 254.8 MWh | Nov 1978 | Dec 2023 | Natural Gas |
| Big Horn Wind II | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 116.9 GWh | Dec 2010 | Jun 2024 | Wind |
| Big Horn Wind Project | Avangrid Renewables LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 510.6 GWh | Sep 2006 | Jun 2024 | Wind |
| Lund Hill Solar | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 372.6 GWh | Sep 2022 | Jun 2024 | Solar |
| Juniper Canyon I Wind Project | Avangrid Renewables LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 300.3 GWh | Feb 2011 | Jun 2024 | Wind |
Browse Power Plants By Washington Counties
Figures are based on December 2023 generation numbers.| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Jefferson County, WA | # 31 | 2 | 219.0 MWh |
| Franklin County, WA | # 30 | 3 | 18.0 GWh |
| Clallam County, WA | # 29 | 3 | 37.7 GWh |
| Yakima County, WA | # 28 | 12 | 112.1 GWh |
| Mason County, WA | # 27 | 3 | 313.3 GWh |
| King County, WA | # 26 | 12 | 369.6 GWh |
| Stevens County, WA | # 25 | 4 | 384.8 GWh |
| Adams County, WA | # 24 | 4 | 464.3 GWh |
| Thurston County, WA | # 23 | 3 | 471.6 GWh |
| Snohomish County, WA | # 22 | 8 | 492.7 GWh |
| Spokane County, WA | # 21 | 7 | 547.3 GWh |
| Skamania County, WA | # 20 | 1 | 593.9 GWh |
| Lincoln County, WA | # 19 | 2 | 640.2 GWh |
| Garfield County, WA | # 18 | 1 | 838.1 GWh |
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Whitman County, WA | # 16 | 6 | 1.8 TWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Clark County, WA | # 15 | 2 | 1.9 TWh |
| Pierce County, WA | # 14 | 13 | 2.3 TWh |
| Skagit County, WA | # 13 | 4 | 2.6 TWh |
| Cowlitz County, WA | # 12 | 6 | 3.3 TWh |
| Columbia County, WA | # 11 | 4 | 3.4 TWh |
| Walla Walla County, WA | # 10 | 4 | 3.4 TWh |
| Pend Oreille County, WA | # 9 | 3 | 3.6 TWh |
| Grays Harbor County, WA | # 8 | 6 | 3.7 TWh |
| Klickitat County, WA | # 7 | 15 | 5.2 TWh |
| Whatcom County, WA | # 6 | 13 | 5.7 TWh |
| Lewis County, WA | # 5 | 8 | 7.6 TWh |
| Chelan County, WA | # 4 | 4 | 7.7 TWh |
| Benton County, WA | # 3 | 6 | 10.6 TWh |
| Douglas County, WA | # 2 | 2 | 13.5 TWh |
| Grant County, WA | # 1 | 8 | 25.3 TWh |