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Pumped Storage Power Plant Projects

161 Projects • 24.82 GW Total Capacity 19 States

150 Operational11 Planned
Project NameStateCountyStatusCapacity (MW)Generation TypeDeveloper
Bath County (1)VABathOperational477 MWPumped StorageVirginia Electric & Power Co
Bath County (2)VABathOperational477 MWPumped StorageVirginia Electric & Power Co
Bath County (3)VABathOperational477 MWPumped StorageVirginia Electric & Power Co
Bath County (4)VABathOperational477 MWPumped StorageVirginia Electric & Power Co
Bath County (5)VABathOperational477 MWPumped StorageVirginia Electric & Power Co
Bath County (6)VABathOperational477 MWPumped StorageVirginia Electric & Power Co
Raccoon Mountain (1)TNHamiltonOperational428.4 MWPumped StorageTennessee Valley Authority
Raccoon Mountain (2)TNHamiltonOperational428.4 MWPumped StorageTennessee Valley Authority
Raccoon Mountain (3)TNHamiltonOperational428.4 MWPumped StorageTennessee Valley Authority
Raccoon Mountain (4)TNHamiltonOperational428.4 MWPumped StorageTennessee Valley Authority
Bad Creek (1)SCOconeeOperational420 MWPumped StorageDuke Energy Carolinas, LLC
Bad Creek (2)SCOconeeOperational420 MWPumped StorageDuke Energy Carolinas, LLC
Bad Creek (3)SCOconeeOperational420 MWPumped StorageDuke Energy Carolinas, LLC
Bad Creek (4)SCOconeeOperational420 MWPumped StorageDuke Energy Carolinas, LLC
Helms Pumped Storage (1)CAFresnoOperational351 MWPumped StoragePacific Gas & Electric Co.
Helms Pumped Storage (2)CAFresnoOperational351 MWPumped StoragePacific Gas & Electric Co.
Helms Pumped Storage (3)CAFresnoOperational351 MWPumped StoragePacific Gas & Electric Co.
Bear Swamp (GEN1)MABerkshireOperational333 MWPumped StorageBear Swamp Power Company LLC
Bear Swamp (GEN2)MABerkshireOperational333 MWPumped StorageBear Swamp Power Company LLC
Ludington (1)MIMasonOperational329.8 MWPumped StorageConsumers Energy Co - (MI)
Ludington (2)MIMasonOperational329.8 MWPumped StorageConsumers Energy Co - (MI)
Ludington (3)MIMasonOperational329.8 MWPumped StorageConsumers Energy Co - (MI)
Ludington (4)MIMasonOperational329.8 MWPumped StorageConsumers Energy Co - (MI)
Ludington (5)MIMasonOperational329.8 MWPumped StorageConsumers Energy Co - (MI)
Ludington (6)MIMasonOperational329.8 MWPumped StorageConsumers Energy Co - (MI)
Northfield Mountain (1)MAFranklinOperational292 MWPumped StorageFirstLight Power Resources, Inc. - MA
Northfield Mountain (2)MAFranklinOperational292 MWPumped StorageFirstLight Power Resources, Inc. - MA
Northfield Mountain (3)MAFranklinOperational292 MWPumped StorageFirstLight Power Resources, Inc. - MA
Northfield Mountain (4)MAFranklinOperational292 MWPumped StorageFirstLight Power Resources, Inc. - MA
Rocky Mountain Hydroelectric Plant (1)GAFloydOperational282.6 MWPumped StorageOglethorpe Power Corporation
Rocky Mountain Hydroelectric Plant (2)GAFloydOperational282.6 MWPumped StorageOglethorpe Power Corporation
Rocky Mountain Hydroelectric Plant (3)GAFloydOperational282.6 MWPumped StorageOglethorpe Power Corporation
Castaic (1)CALos AngelesOperational271 MWPumped StorageLos Angeles Department of Water & Power
Castaic (2)CALos AngelesOperational271 MWPumped StorageLos Angeles Department of Water & Power
Castaic (3)CALos AngelesOperational271 MWPumped StorageLos Angeles Department of Water & Power
Castaic (4)CALos AngelesOperational271 MWPumped StorageLos Angeles Department of Water & Power
Castaic (5)CALos AngelesOperational271 MWPumped StorageLos Angeles Department of Water & Power
Castaic (6)CALos AngelesOperational271 MWPumped StorageLos Angeles Department of Water & Power
Blenheim Gilboa (1)NYSchoharieOperational250 MWPumped StorageNew York Power Authority
Blenheim Gilboa (2)NYSchoharieOperational250 MWPumped StorageNew York Power Authority
Blenheim Gilboa (3)NYSchoharieOperational250 MWPumped StorageNew York Power Authority
Blenheim Gilboa (4)NYSchoharieOperational250 MWPumped StorageNew York Power Authority
Intermountain Pumped Storage Project (HL001)UTMillardActive250 MWPumped StoragePremium Energy Holdings
Intermountain Pumped Storage Project (HL002)UTMillardActive250 MWPumped StoragePremium Energy Holdings
Intermountain Pumped Storage Project (HL003)UTMillardActive250 MWPumped StoragePremium Energy Holdings
Intermountain Pumped Storage Project (HL004)UTMillardActive250 MWPumped StoragePremium Energy Holdings
Haiwee Pumped Storage Project (HL001)CAInyoActive250 MWPumped StoragePremium Energy Holdings
Haiwee Pumped Storage Project (HL002)CAInyoActive250 MWPumped StoragePremium Energy Holdings
Haiwee Pumped Storage Project (HL003)CAInyoActive250 MWPumped StoragePremium Energy Holdings
Haiwee Pumped Storage Project (HL004)CAInyoActive250 MWPumped StoragePremium Energy Holdings
Seneca Generation LLC (1)PAWarrenOperational205.9 MWPumped StorageSeneca Generation LLC
Seneca Generation LLC (2)PAWarrenOperational205.9 MWPumped StorageSeneca Generation LLC
Taum Sauk (1)MOReynoldsOperational204 MWPumped StorageUnion Electric Co - (MO)
Taum Sauk (2)MOReynoldsOperational204 MWPumped StorageUnion Electric Co - (MO)
Whale Rock Pumped Storage Hydro Project (WH001)CASan Luis ObispoActive200 MWPumped StoragePremium Energy Holdings
Whale Rock Pumped Storage Hydro Project (WH002)CASan Luis ObispoActive200 MWPumped StoragePremium Energy Holdings
Whale Rock Pumped Storage Hydro Project (WH003)CASan Luis ObispoActive200 MWPumped StoragePremium Energy Holdings
J S Eastwood (1)CAFresnoOperational199.8 MWPumped StorageSouthern California Edison Co
Jocassee (1)SCPickensOperational193.5 MWPumped StorageDuke Energy Carolinas, LLC
Jocassee (2)SCPickensOperational193.5 MWPumped StorageDuke Energy Carolinas, LLC
Jocassee (3)SCPickensOperational193.5 MWPumped StorageDuke Energy Carolinas, LLC
Jocassee (4)SCPickensOperational193.5 MWPumped StorageDuke Energy Carolinas, LLC
Yards Creek Energy (1)NJWarrenOperational151 MWPumped StorageYards Creek Energy
Yards Creek Energy (2)NJWarrenOperational151 MWPumped StorageYards Creek Energy
Yards Creek Energy (3)NJWarrenOperational151 MWPumped StorageYards Creek Energy
Cabin Creek (A)COClear CreekOperational150 MWPumped StoragePublic Service Co of Colorado
Cabin Creek (B)COClear CreekOperational150 MWPumped StoragePublic Service Co of Colorado
Muddy Run (1)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (2)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (3)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (4)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (5)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (6)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (7)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Muddy Run (8)PALancasterOperational134 MWPumped StorageConstellation Power, Inc
Carters (3)GAMurrayOperational125 MWPumped StorageUSCE-Mobile District
Carters (4)GAMurrayOperational125 MWPumped StorageUSCE-Mobile District
Smith Mountain (3)VAPittsylvaniaOperational115.3 MWPumped StorageAppalachian Power Co
Mount Elbert (1)COLakeOperational100 MWPumped StorageU S Bureau of Reclamation
Mount Elbert (2)COLakeOperational100 MWPumped StorageU S Bureau of Reclamation
Horse Mesa (HM4)AZMaricopaOperational99.8 MWPumped StorageSalt River Project
Edward C Hyatt (2)CAButteOperational97.7 MWPumped StorageCalifornia Dept. of Water Resources
Edward C Hyatt (4)CAButteOperational97.7 MWPumped StorageCalifornia Dept. of Water Resources
Edward C Hyatt (6)CAButteOperational97.7 MWPumped StorageCalifornia Dept. of Water Resources
Hiwassee Dam (2)NCCherokeeOperational95 MWPumped StorageTennessee Valley Authority
Richard B Russell (5)GAElbertOperational82 MWPumped StorageUSCE-Savannah District
Richard B Russell (6)GAElbertOperational82 MWPumped StorageUSCE-Savannah District
Richard B Russell (7)GAElbertOperational82 MWPumped StorageUSCE-Savannah District
Richard B Russell (8)GAElbertOperational82 MWPumped StorageUSCE-Savannah District
Fairfield Pumped Storage (1)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (2)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (3)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (4)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (5)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (6)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (7)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Fairfield Pumped Storage (8)SCFairfieldOperational73.4 MWPumped StorageDominion Energy South Carolina, Inc
Smith Mountain (1)VAPittsylvaniaOperational66 MWPumped StorageAppalachian Power Co
Smith Mountain (5)VAPittsylvaniaOperational66 MWPumped StorageAppalachian Power Co
Mormon Flat (MF2)AZMaricopaOperational54.3 MWPumped StorageSalt River Project
Grand Coulee (PG10)WAGrantOperational53.5 MWPumped StorageU S Bureau of Reclamation
Grand Coulee (PG11)WAGrantOperational53.5 MWPumped StorageU S Bureau of Reclamation
Grand Coulee (PG12)WAGrantOperational53.5 MWPumped StorageU S Bureau of Reclamation
Grand Coulee (PG9)WAGrantOperational53.5 MWPumped StorageU S Bureau of Reclamation
W R Gianelli (1)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (2)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (3)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (4)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (5)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (6)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (7)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
W R Gianelli (8)CAMercedOperational53 MWPumped StorageCalifornia Dept. of Water Resources
Wallace Dam (1)GAHancockOperational52.2 MWPumped StorageGeorgia Power Co
Wallace Dam (2)GAHancockOperational52.2 MWPumped StorageGeorgia Power Co
Wallace Dam (5)GAHancockOperational52.2 MWPumped StorageGeorgia Power Co
Wallace Dam (6)GAHancockOperational52.2 MWPumped StorageGeorgia Power Co
Grand Coulee (PG7)WAGrantOperational50 MWPumped StorageU S Bureau of Reclamation
Grand Coulee (PG8)WAGrantOperational50 MWPumped StorageU S Bureau of Reclamation
Salina (1)OKMayesOperational43.2 MWPumped StorageGrand River Dam Authority
Salina (2)OKMayesOperational43.2 MWPumped StorageGrand River Dam Authority
Salina (3)OKMayesOperational43.2 MWPumped StorageGrand River Dam Authority
Salina (4)OKMayesOperational43.2 MWPumped StorageGrand River Dam Authority
Salina (5)OKMayesOperational43.2 MWPumped StorageGrand River Dam Authority
Salina (6)OKMayesOperational43.2 MWPumped StorageGrand River Dam Authority
Clarence Cannon (2)MORallsOperational31 MWPumped StorageUSCE-St Louis District
Degray (2)ARClarkOperational30 MWPumped StorageUSCE -Vickburg District
Thermalito (2)CAButteOperational27.5 MWPumped StorageCalifornia Dept. of Water Resources
Thermalito (3)CAButteOperational27.5 MWPumped StorageCalifornia Dept. of Water Resources
Thermalito (4)CAButteOperational27.5 MWPumped StorageCalifornia Dept. of Water Resources
Harry Truman (1)MOBentonOperational26.9 MWPumped StorageUSCE-Kansas City District
Harry Truman (2)MOBentonOperational26.9 MWPumped StorageUSCE-Kansas City District
Harry Truman (3)MOBentonOperational26.9 MWPumped StorageUSCE-Kansas City District
Harry Truman (4)MOBentonOperational26.9 MWPumped StorageUSCE-Kansas City District
Harry Truman (5)MOBentonOperational26.9 MWPumped StorageUSCE-Kansas City District
Harry Truman (6)MOBentonOperational26.9 MWPumped StorageUSCE-Kansas City District
Rocky River (CT) (3)CTLitchfieldOperational24 MWPumped StorageFirstLight Power Resources Services LLC
Lewiston Niagara (1)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (10)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (11)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (12)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (2)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (3)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (4)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (5)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (6)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (7)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (8)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Lewiston Niagara (9)NYNiagaraOperational20 MWPumped StorageNew York Power Authority
Waddell (PG3)AZMaricopaOperational10 MWPumped StorageCentral Arizona Water Conservation Dist
Waddell (PG6)AZMaricopaOperational10 MWPumped StorageCentral Arizona Water Conservation Dist
Waddell (PG7)AZMaricopaOperational10 MWPumped StorageCentral Arizona Water Conservation Dist
Waddell (PS1)AZMaricopaOperational10 MWPumped StorageCentral Arizona Water Conservation Dist
Flatiron (3)COLarimerOperational8.5 MWPumped StorageU S Bureau of Reclamation
ONeill (1)CAMercedOperational4.2 MWPumped StorageU S Bureau of Reclamation
ONeill (2)CAMercedOperational4.2 MWPumped StorageU S Bureau of Reclamation
ONeill (3)CAMercedOperational4.2 MWPumped StorageU S Bureau of Reclamation
ONeill (4)CAMercedOperational4.2 MWPumped StorageU S Bureau of Reclamation
ONeill (5)CAMercedOperational4.2 MWPumped StorageU S Bureau of Reclamation
ONeill (6)CAMercedOperational4.2 MWPumped StorageU S Bureau of Reclamation
Rocky River (CT) (1)CTLitchfieldOperational3.5 MWPumped StorageFirstLight Power Resources Services LLC
Rocky River (CT) (2)CTLitchfieldOperational3.5 MWPumped StorageFirstLight Power Resources Services LLC

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Data source: U.S. Energy Information Administration EIA Form 860M

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