Directory of Power Plants in Washington

List of All Washington Power Plants

Displaying Results 1 to 2 of 2
Plant NameUtilityLocationBalancing AuthorityAnnual GenerationPlant DateLast UpdateFuel Types
DarringtonHampton Lumber Mills - Washington IncDarrington, WABonneville Power Administration (BPAT)17.0 GWhJan 2007Dec 2024 Wood/Wood Waste Solids
DiabloCity of Seattle - (WA)Rockport, WASeattle City Light (SCL)361.4 GWhSep 1936Dec 2024 Water

Browse Power Plants By Washington Counties

Figures are based on July 2025 generation numbers.
CountyState RankActive PlantsJul 2025 Generation
Grant County, WA# 1924.8 TWh
Chelan County, WA# 2611.2 TWh
Douglas County, WA# 319.6 TWh
Benton County, WA# 478.0 TWh
Lewis County, WA# 587.5 TWh
Klickitat County, WA# 6165.5 TWh
Whatcom County, WA# 7135.0 TWh
Cowlitz County, WA# 863.8 TWh
Grays Harbor County, WA# 963.5 TWh
Columbia County, WA# 1043.4 TWh
Pend Oreille County, WA# 1133.3 TWh
Walla Walla County, WA# 1243.2 TWh
Pierce County, WA# 13142.3 TWh
Whitman County, WA# 1461.7 TWh
Skagit County, WA# 1541.7 TWh
Clark County, WA# 1621.5 TWh
CountyState RankActive PlantsJul 2025 Generation
Kittitas County, WA# 1791.2 TWh
Garfield County, WA# 182823.1 GWh
Lincoln County, WA# 192641.5 GWh
Spokane County, WA# 207559.6 GWh
Skamania County, WA# 211518.9 GWh
Adams County, WA# 224471.5 GWh
Thurston County, WA# 234417.1 GWh
Snohomish County, WA# 249401.9 GWh
King County, WA# 2512365.2 GWh
Stevens County, WA# 264346.7 GWh
Mason County, WA# 273304.6 GWh
Yakima County, WA# 2812195.8 GWh
Clallam County, WA# 29337.5 GWh
Franklin County, WA# 30312.8 GWh
Jefferson County, WA# 3133.2 GWh