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Home / Technologies / Conventional Hydroelectric / Washington

Conventional Hydroelectric Power Plants in Washington

U.S. Energy Information Administration (Forms EIA-860/860M).

Power plants
68
Total nameplate capacity
20,070.7 MW
Generating units
265
National rank (conventional hydroelectric capacity)
#1

Every conventional hydroelectric plant in Washington

PlantOperatorUnitsCapacity
Grand CouleeU S Bureau of Reclamation336,809 MW
Chief JosephUSACE Northwestern Division191,743.8 MW
Rocky ReachPUD No 1 of Chelan County111,349.2 MW
WanapumPUD No 2 of Grant County101,220 MW
BoundaryCity of Seattle - (WA)61,159.7 MW
Priest RapidsPUD No 2 of Grant County10950 MW
WellsPUD No 1 of Douglas County9789.4 MW
Lower GraniteUSACE Northwestern Division5675 MW
Lower MonumentalUSACE Northwestern Division5675 MW
Little GooseUSACE Northwestern Division4540 MW
Rock IslandPUD No 1 of Chelan County15514.2 MW
RossCity of Seattle - (WA)4450 MW
Ice HarborUSACE Northwestern Division4423 MW
MossyrockCity of Tacoma - (WA)2300 MW
Swift 1PacifiCorp3240 MW
GorgeCity of Seattle - (WA)4207.3 MW
DiabloCity of Seattle - (WA)4182.4 MW
MayfieldCity of Tacoma - (WA)4162 MW
MerwinPacifiCorp4136 MW
YalePacifiCorp2134 MW
H M JacksonPUD No 1 of Snohomish County4111.8 MW
Upper BakerPuget Sound Energy Inc2104.8 MW
Lower BakerPuget Sound Energy Inc2103.9 MW
Summer Falls Power PlantColumbia Basin Hydropower292 MW
Box CanyonPUD No 1 of Pend Oreille County490 MW
Cushman 2City of Tacoma - (WA)584.6 MW
Cowlitz FallsPUD No 1 of Lewis County270 MW
Long LakeAvista Corp470 MW
LaGrandeCity of Tacoma - (WA)564 MW
ChelanPUD No 1 of Chelan County259.2 MW
AlderCity of Tacoma - (WA)251 MW
Cushman 1City of Tacoma - (WA)250.4 MW
Little Falls (WA)Avista Corp443.2 MW
Snoqualmie 2Puget Sound Energy Inc238.7 MW
Nine MileAvista Corp437.6 MW
Cedar Falls (WA)City of Seattle - (WA)230 MW
PackwoodEnergy Northwest - Packwood127.5 MW
Main Canal HeadworksColumbia Basin Hydropower126.8 MW
Twin Falls HydroCentral Rivers Power US, LLC224 MW
ElectronElectron Hydro LLC422.8 MW
Upriver Dam Hydro PlantCity of Spokane517.6 MW
South Fork ToltCity of Seattle - (WA)116.8 MW
Monroe StreetAvista Corp114.8 MW
Tieton Dam Hydro Electric ProjectCity of Burbank Water and Power213.8 MW
RozaU S Bureau of Reclamation112.9 MW
WynoocheeCity of Tacoma - (WA)112.8 MW
SnoqualmiePuget Sound Energy Inc512.8 MW
Koma KulshanEagle Creek Renewable Energy, LLC112 MW
YelmCity of Centralia - (WA)312 MW
ChandlerU S Bureau of Reclamation212 MW
Upper FallsAvista Corp110 MW
McNary Dam Fish Attraction ProjectNorthern Wasco County PUD110 MW
Youngs Creek Hydroelectric ProjectPUD No 1 of Snohomish County17.5 MW
Russell D SmithColumbia Basin Hydropower16.1 MW
Hancock Creek Hydroelectric ProjectPUD No 1 of Snohomish County16 MW
Calligan Creek Hydroelectric ProjectPUD No 1 of Snohomish County16 MW
Weeks FallsEagle Creek Renewable Energy, LLC14.3 MW
Black CreekBlack Creek Hydro Inc13.7 MW
Potholes East Canal 66.0Columbia Basin Hydropower12.3 MW
Twin ReservoirsWalla Walla City of12.2 MW
Eltopia Branch Canal 4.6Columbia Basin Hydropower12.2 MW
Meyers FallsHydro Technology Systems Inc41.8 MW
CowicheYakima-Tieton Irrigation Dist11.7 MW
Sheep Creek HydroSheep Creek Hydro Inc21.6 MW
Orchard Avenue 1Yakima-Tieton Irrigation Dist21.6 MW
Nooksack HydroPuget Sound Hydro LLC11.5 MW
Lilliwaup Falls GeneratingWilliam G. Reed Jr71.4 MW
SkookumchuckTransAlta Centralia Gen LLC11 MW

Source: U.S. Energy Information Administration, Forms EIA-860 and EIA-860M. Nameplate capacity is the maximum rated output of the plant's generators.

Conventional Hydroelectric Power Plants in Washington | EnergyAtlasUSA