Directory of Power Plants in Washington
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Columbia Generating Station | Energy Northwest- Columbia | Richland, WA | Bonneville Power Administration (BPAT) | 9.8 TWh | Nov 1984 | Jun 2026 | Nuclear |
| Chief Joseph | USACE Northwestern Division | Bridgeport, WA | Bonneville Power Administration (BPAT) | 11.7 TWh | Aug 1955 | Jun 2026 | Water |
| Chehalis Generating Facility | PacifiCorp | Chehalis, WA | Bonneville Power Administration (BPAT) | 2.3 TWh | Jul 2003 | Jun 2026 | Natural Gas |
| Crystal Mountain | Puget Sound Energy Inc | Greenwater, WA | Puget Sound Energy, Inc. (PSEI) | 775.0 MWh | Nov 1969 | May 2026 | Distillate Fuel Oil |
| Cushman 1 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 107.8 GWh | May 1926 | Dec 2025 | Water |
| Cushman 2 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 160.5 GWh | Nov 1930 | Dec 2025 | Water |
| Chelan | PUD No 1 of Chelan County - (WA) | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 325.2 GWh | Aug 1927 | Dec 2025 | Water |
| Cedar Falls (WA) | City of Seattle - (WA) | North Bend, WA | Seattle City Light (SCL) | 53.6 GWh | Oct 1921 | 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 |
| 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% |
| 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 |
| Camas Solar Project | Altus Power America Management, LLC | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.7 GWh | May 2022 | Dec 2025 | Solar |
| Chandler | U S Bureau of Reclamation | Benton City, WA | Bonneville Power Administration (BPAT) | 30.6 GWh | Jan 1956 | Nov 2025 | Water |
| Cowiche | Yakima-Tieton Irrigation Dist | Tieton, WA | PacifiCorp West (PACW) | 3.4 GWh | Feb 1987 | Oct 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 |