Power Plants in Washington

Washington operates 172 power plants totaling 31,538 MW of nameplate capacity. Hydroelectric dominates the mix at 68%, followed by Natural Gas (13%) and Wind (11%). The largest plant is Grand Coulee at 6,809 MW.

Plants172operating sites
Capacity31,538 MWnameplate
Generation102.8M MWhannual
CO₂13.6Mmetric tons/year
Hydroelectric 68%Natural Gas 13%Wind 11%Nuclear 4%Coal 2%

Plant locations

Showing the 120 largest plants by capacity. Washington operates another 52 plants below this size — browse the lists below to reach them.

Largest plants in Washington

PlantCityFuelCapacity
Grand CouleeGrand CouleeHydroelectric6,809 MW
Chief JosephBridgeportHydroelectric2,456 MW
Rocky ReachWenatcheeHydroelectric1,300 MW
WanapumBeverlyHydroelectric1,220 MW
Columbia Generating StationRichlandNuclear1,200 MW
BoundaryMetalineHydroelectric1,119 MW
Priest RapidsMattawaHydroelectric950 MW
Little GooseDaytonHydroelectric810 MW
Lower MonumentalKahlotusHydroelectric810 MW
Lower GranitePomeroyHydroelectric810 MW
WellsChelanHydroelectric774 MW
Transalta Centralia GenerationCentraliaCoal730 MW
Grays Harbor Energy FacilityElmaNatural Gas715 MW
Rock IslandWenatcheeHydroelectric629 MW
Ice HarborBurbankHydroelectric603 MW
Chehalis Generating FacilityChehalisNatural Gas593 MW
RossRockportHydroelectric450 MW
Fredonia (Wa)Mt VernonNatural Gas376 MW
Lower Snake River Wind Energy ProjectPomeroyWind343 MW
Mint Farm Generating StationLongviewNatural Gas319 MW
Frederickson Power LpTacomaNatural Gas318 MW
Goldendale Generating StationGoldendaleNatural Gas303 MW
MossyrockSilver CreekHydroelectric300 MW
Ferndale Generating StationFerndaleNatural Gas286 MW
Wild HorseEllensburgWind273 MW
Tucannon River Wind FarmDaytonWind267 MW
Windy Flats Wind ProjectCentervilleWind262 MW
River Road Gen PlantVancouverNatural Gas248 MW
Swift 1CougarHydroelectric240 MW
Marengo Wind PlantDaytonWind234 MW
GorgeRockportHydroelectric207 MW
White Creek Wind FarmRooseveltWind204 MW
Big Horn Wind ProjectBickeltonWind199 MW
DiabloRockportHydroelectric182 MW
FredericksonTacomaNatural Gas178 MW
Fpl Energy Vansycle Llc (Wa)TouchetWind177 MW
EncogenBellinghamNatural Gas176 MW
WhitehornBlaineNatural Gas169 MW
MayfieldSilver CreekHydroelectric162 MW
Hopkins Ridge WindDaytonWind157 MW
Juniper Canyon I Wind ProjectBickletonWind151 MW
Lund Hill SolarBickletonSolar150 MW
Rattlesnake FlatRitzvilleWind144 MW
Hf Sinclair Puget Sound RefiningAnacortesNatural Gas140 MW
Tuolumne Wind ProjectGoldendaleWind136 MW
MerwinArielHydroelectric136 MW
Skookumchuck Wind FacilityRainierWind136 MW
YaleAmboyHydroelectric134 MW
Sumas Power PlantSumasNatural Gas126 MW
H M JacksonSultanHydroelectric112 MW

By county

Grant County9 plants · 9,113 MWChelan County6 plants · 2,762 MWDouglas County1 plants · 2,456 MWLewis County8 plants · 1,882 MWWhatcom County12 plants · 1,718 MWKlickitat County14 plants · 1,707 MWWalla Walla County4 plants · 1,592 MWColumbia County4 plants · 1,467 MWBenton County6 plants · 1,322 MWPend Oreille County3 plants · 1,208 MWWhitman County6 plants · 920 MWCowlitz County6 plants · 768 MWGrays Harbor County5 plants · 766 MWSkagit County4 plants · 647 MWPierce County10 plants · 640 MWKittitas County7 plants · 483 MWGarfield County2 plants · 342 MWClark County1 plants · 248 MWSkamania County1 plants · 240 MWSpokane County7 plants · 192 MWAdams County4 plants · 169 MWKing County12 plants · 167 MWThurston County4 plants · 149 MWMason County3 plants · 129 MWSnohomish County9 plants · 127 MWYakima County10 plants · 114 MWLincoln County2 plants · 113 MWStevens County3 plants · 61 MWClallam County3 plants · 12 MWJefferson County3 plants · 9 MWFranklin County2 plants · 4 MWKitsap County1 plants · 0 MW