How many battery storage projects are in Pennsylvania?

3, with 35 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Pennsylvania battery storage projects?

Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest battery storage project in Pennsylvania?

Meyersdale Battery, at 18 MW. The table is sorted largest first, so the rest follow it.

Is there a battery storage project near me in Pennsylvania?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Pennsylvania's battery storage projects?

Most of them sit inside PJM, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.

How current is this, and what is left out?

EIA-860M for 2026-07. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Battery Storage Projects in Pennsylvania

Every operating battery storage project in Pennsylvania on EIA-860M for 2026-07: 3 plants, 3 storage units and 35 MW of nameplate capacity across 2 counties, most of it inside PJM.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 3; 3 generating units
Nameplate capacity: 35 MW
Counties: 2
Grid operator: PJM; covers most of these plants

Map of battery storage projects in Pennsylvania

Every one of the 3 plants is drawn at the coordinate EIA files for it.

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Battery · 3

List of battery storage projects in Pennsylvania

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

battery storage projects in Pennsylvania

Meyersdale BatteryBatteries	GlidePath Power Operations LLC	Somerset	18	1	2015	Operating
Green Mountain Storage, LLCBatteries	Green Mountain Storage, LLC	Somerset	10.4	1	2016	Operating
PNY BESS LLCBatteries	Citizens Enterprises Corporation	Philadelphia	6.2	1	2021	Operating

Largest battery storage projects in Pennsylvania

1Meyersdale BatterySomerset County, Pennsylvania18 MW
2Green Mountain Storage, LLCSomerset County, Pennsylvania10.4 MW
3PNY BESS LLCPhiladelphia County, Pennsylvania6.2 MW

Battery storage projects by county in Pennsylvania

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Somerset	2	28.4
Philadelphia	1	6.2

Battery Storage Projects in Pennsylvania: FAQ

How many battery storage projects are in Pennsylvania?: 3, with 35 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Pennsylvania battery storage projects?: Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest battery storage project in Pennsylvania?: Meyersdale Battery, at 18 MW. The table is sorted largest first, so the rest follow it.
Is there a battery storage project near me in Pennsylvania?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Pennsylvania's battery storage projects?: Most of them sit inside PJM, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
How current is this, and what is left out?: EIA-860M for 2026-07. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.