The Largest Conventional Hydroelectric Power Plants in the US

Plant City/County State Primary Fuel Type MWh Generated CO2 Emissions Rank Emissions CO2 Emissions/MWh Rant Emissions/MWh Closing Date
Peters Drive PlantFarmer's Irrigation District (100.00%)
Hood River County OR Conventional Hydroelectric 9,980MWh 1 1
Columbia County GA Conventional Hydroelectric 99,276MWh 1 1
Lachute Hydro LowerEnel Green Power (100.00%)
Ticonderoga CDP NY Conventional Hydroelectric 9,919MWh 1 1
King MillAugusta Canal Authority (100.00%)
Augusta-Richmond County consolidated government GA Conventional Hydroelectric 9,916MWh 1 1
Fresno County CA Conventional Hydroelectric 98,992MWh 1 1
Shasta County CA Conventional Hydroelectric 989,277MWh 1 1
Whatcom County WA Conventional Hydroelectric 987,701MWh 1 1
Spicer Meadow ProjectCalaveras County Water Dist (100.00%)
Tuolumne County CA Conventional Hydroelectric 9,869MWh 1 1
Mother Ann LeeLock 7 Hydro Partners LLC (100.00%)
Mercer County KY Conventional Hydroelectric 9,812MWh 1 1
Defiance County OH Conventional Hydroelectric 9,744MWh 1 1
Plumas County CA Conventional Hydroelectric 97,375MWh 1 1
Oconto Falls UpperN E W Hydro LLC (100.00%)
Oconto Falls WI Conventional Hydroelectric 9,737MWh 1 1
Main Canal HeadworksQuincy-Columbia Basin Irr Dist (33.33%)East Columbia Basin Irr Dist (33.34%)South Columbia Basin Irr Dist (33.33%)
Grant County WA Conventional Hydroelectric 97,322MWh 1 1
Gooding County ID Conventional Hydroelectric 96,986MWh 1 1
Idaho Falls ID Conventional Hydroelectric 9,687MWh 1 1
Mink Creek HydroMink Creek Hydro Entity (100.00%)
Franklin County ID Conventional Hydroelectric 9,644MWh 1 1
Four Mile Hydropower ProjectThunder Bay Power Co LLC (100.00%)
Alpena County MI Conventional Hydroelectric 9,643MWh 1 1
Butte County CA Conventional Hydroelectric 96,397MWh 1 1
Butts County GA Conventional Hydroelectric 96,311MWh 1 1
Selis Ksanka QlispeEnergy Keepers Inc (100.00%)
Lake County MT Conventional Hydroelectric 962,819MWh 1 1
Indian Valley Dam Hydro ProjectYolo County Flood Control WCD (100.00%)
Lake County CA Conventional Hydroelectric 9,619MWh 1 1
Lancaster County PA Conventional Hydroelectric 960,618MWh 1 1
French Landing DamSTS Hydropower, LLC (100.00%)
Wayne County MI Conventional Hydroelectric 9,597MWh 1 1
Estes Park CO Conventional Hydroelectric 95,921MWh 1 1
Lewis County WA Conventional Hydroelectric 95,746MWh 1 1
Drop 5Drop 5 Hydro LLC (100.00%)
Montrose County CO Conventional Hydroelectric 9,573MWh 1 1
Squa Pan Hydro StationAlgonquin Power (100.00%)
Aroostook County ME Conventional Hydroelectric 956MWh 1 1
Douglas County OR Conventional Hydroelectric 95,400MWh 1 1
Castle RockWisconsin Public Service (50.00%)Wisconsin Power & Light Co (50.00%)
Adams County WI Conventional Hydroelectric 95,152MWh 1 1
Elmore County ID Conventional Hydroelectric 95,120MWh 1 1
AK Conventional Hydroelectric 9,473MWh 1 1
William F Matson Generating StationAllegheny Electric Cooperative (100.00%)
Huntingdon County PA Conventional Hydroelectric 94,697MWh 1 1
Fresno County CA Conventional Hydroelectric 94,636MWh 1 1
Holyoke MA Conventional Hydroelectric 94,311MWh 1 1
Marshall County AL Conventional Hydroelectric 940,999MWh 1 1
Twin Falls County ID Conventional Hydroelectric 94MWh 1 1
RC Thomas Hydroelectric ProjectEast Texas Electric Cooperative (100.00%)
Polk County TX Conventional Hydroelectric 93,953MWh 1 1
Lake LureLake Lure Town of (100.00%)
Lake Lure NC Conventional Hydroelectric 9,393MWh 1 1
Flambeau Hydroelectric StationDairyland Power Cooperative (100.00%)
Rusk County WI Conventional Hydroelectric 93,727MWh 1 1
Taylor Draw Hydroelectric FacilityRio Blanco Water Conserv Dist (100.00%)
Rio Blanco County CO Conventional Hydroelectric 9,357MWh 1 1
Last Reviewed By: King Manalo
Published: 2021-06-02 Last Updated: 2022-03-09