Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Port Townsend Paper | Port Townsend Paper Co | Port Townsend, WA | Bonneville Power Administration (BPAT) | 2.6 GWh | Dec 1928 | Dec 2024 | Black Liquor : 49.9% Wood/Wood Waste Solids : 35.3% Natural Gas : 11.0% Waste/Other Oil : 3.8% |
| Twin Reservoirs | Walla Walla City of | Walla Walla, WA | Bonneville Power Administration (BPAT) | 7.3 GWh | Mar 1988 | Dec 2024 | Water |
| Nippon Dynawave Packaging Longview WA | Nippon Dynawave Packaging Co. | Longview, WA | Bonneville Power Administration (BPAT) | 271.2 GWh | Dec 1947 | Mar 2026 | Black Liquor : 54.7% Natural Gas : 18.7% Wood/Wood Waste Solids : 17.1% Subbituminous Coal : 6.4% Sludge Waste : 2.7% |
| River Road Gen Plant | PUD No 1 of Clark County - (WA) | Vancouver, WA | Bonneville Power Administration (BPAT) | 1.3 TWh | Nov 1997 | Dec 2025 | Natural Gas |
| 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 Falls (WA) | Avista Corp | Ford, WA | Avista Corporation (AVA) | 185.3 GWh | Jun 1910 | Dec 2024 | Water |
| Kettle Falls Generating Station | Avista Corp | Kettle Falls, WA | Avista Corporation (AVA) | 329.8 GWh | Nov 1983 | Dec 2024 | Wood/Wood Waste Solids : 88.7% Natural Gas : 11.3% |
| Box Canyon | PUD No 1 of Pend Oreille County | Ione, WA | Avista Corporation (AVA) | 464.1 GWh | May 1955 | Dec 2024 | Water |
| Rattlesnake Flat | Rattlesnake Flat, LLC | Ritzville, WA | Avista Corporation (AVA) | 422.8 GWh | Nov 2020 | Mar 2026 | Wind |
| 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 |
| Adams Nielson Solar | Strata Manager, LLC | Lind, WA | Avista Corporation (AVA) | 42.5 GWh | Oct 2018 | Mar 2026 | Solar |
| Northeast (WA) | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 1.2 GWh | Nov 1978 | Dec 2024 | Natural Gas |
| Palouse | Onward Energy | Oakesdale, WA | Avista Corporation (AVA) | 325.9 GWh | Nov 2012 | Dec 2024 | Wind |
| Main Canal Headworks | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 103.3 GWh | Dec 1986 | Oct 2024 | Water |
| Summer Falls Power Plant | Columbia Basin Hydropower | Coulee City, WA | Avista Corporation (AVA) | 398.2 GWh | Dec 1984 | Oct 2024 | Water |
| 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 |
| Grimes Way | Washington State University | Pullman, WA | Avista Corporation (AVA) | 107.0 MWh | Dec 2004 | Mar 2026 | Distillate Fuel Oil : 51.7% Natural Gas : 48.3% |
| Upriver Dam Hydro Plant | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 48.4 GWh | Dec 1935 | Dec 2024 | Water |
| Spokane Waste to Energy | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 132.6 GWh | Aug 1991 | Mar 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Juniper Canyon I Wind Project | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 110.0 GWh | Feb 2011 | Mar 2026 | Wind |
| Big Horn Wind II | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 108.3 GWh | Dec 2010 | Mar 2026 | Wind |
| Big Horn Wind Project | Avangrid Power LLC | Bickelton, WA | Avangrid Renewables, LLC (AVRN) | 499.2 GWh | Sep 2006 | Mar 2026 | Wind |
| Lund Hill Solar | Avangrid Power LLC | Bickleton, WA | Avangrid Renewables, LLC (AVRN) | 366.2 GWh | Sep 2022 | Mar 2026 | Solar |
Browse Power Plants By Washington Counties
Figures are based on December 2024 generation numbers.| County | State Rank | Active Plants | Dec 2024 Generation |
|---|---|---|---|
| Jefferson County, WA | # 30 | 3 | 3.2 GWh |
| Franklin County, WA | # 29 | 3 | 12.8 GWh |
| Yakima County, WA | # 28 | 12 | 228.5 GWh |
| Mason County, WA | # 27 | 3 | 304.6 GWh |
| Stevens County, WA | # 26 | 4 | 346.7 GWh |
| King County, WA | # 25 | 12 | 361.2 GWh |
| Snohomish County, WA | # 24 | 9 | 401.9 GWh |
| Thurston County, WA | # 23 | 4 | 441.5 GWh |
| Adams County, WA | # 22 | 4 | 465.3 GWh |
| Skamania County, WA | # 21 | 1 | 548.4 GWh |
| Spokane County, WA | # 20 | 7 | 556.8 GWh |
| Lincoln County, WA | # 19 | 2 | 641.5 GWh |
| Garfield County, WA | # 18 | 2 | 806.7 GWh |
| Kittitas County, WA | # 17 | 9 | 1.2 TWh |
| Clark County, WA | # 16 | 2 | 1.3 TWh |
| County | State Rank | Active Plants | Dec 2024 Generation |
|---|---|---|---|
| Skagit County, WA | # 15 | 4 | 1.4 TWh |
| Whitman County, WA | # 14 | 6 | 1.8 TWh |
| Pierce County, WA | # 13 | 14 | 2.3 TWh |
| Walla Walla County, WA | # 12 | 4 | 3.4 TWh |
| Grays Harbor County, WA | # 11 | 6 | 3.4 TWh |
| Columbia County, WA | # 10 | 4 | 3.5 TWh |
| Cowlitz County, WA | # 9 | 6 | 3.8 TWh |
| Pend Oreille County, WA | # 8 | 3 | 4.1 TWh |
| Whatcom County, WA | # 7 | 13 | 4.4 TWh |
| Klickitat County, WA | # 6 | 16 | 5.5 TWh |
| Lewis County, WA | # 5 | 8 | 7.3 TWh |
| Benton County, WA | # 4 | 7 | 8.0 TWh |
| Douglas County, WA | # 3 | 1 | 11.2 TWh |
| Chelan County, WA | # 2 | 6 | 13.1 TWh |
| Grant County, WA | # 1 | 9 | 28.9 TWh |