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United States β€Ί Power plants β€Ί Battery storage

OCTARY USA Β· BATTERY STORAGE

Compressed air plants in the USA

Grid-scale battery and other energy storage in the United States, with power (MW) and, where reported, energy (MWh). Click a state to drill down, or search near a place.

Operating1plants
Operating capacity110 MWnameplate
Under construction0.0 MW0 plants
Whole pipeline0.0 MWplanned, approved and building

Map

Loading plants…
OperatingUnder constructionApprovedPlannedRetiredCancelled

Plants

1 plants
PlantCapacityStageStateOwner / operatorYear
McIntosh (AL) 110 MW
110 MWh		 Operating AL
Washington		 PowerSouth Energy Cooperative 1991

Operating capacity by state

Click a state to drill down.

AK–ME–VT–NH–WA–ID–MT–ND–MN–IL–WI–MI–NY–RI–MA–OR–NV–WY–SD–IA–IN–OH–PA–NJ–CT–CA–UT–CO–NE–MO–KY–WV–VA–MD–DE–AZ–NM–KS–AR–TN–NC–SC–DC–OK–LA–MS–AL110MWGA–HI–TX–FL–

Largest owners and operators

By capacity in the current view. Click to see their plants.

Source: U.S. Energy Information Administration, Form EIA-860M, Monthly Update to the Annual Electric Generator Report, September 2026. Includes generators of 1 MW and over at plants connected to the grid. Planned dates are developers' targets reported to EIA and often move. US EV charging map