How many nuclear power plants are in Pennsylvania?

5, with 11 GW of nameplate capacity between them, spread over 5 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Pennsylvania nuclear power plants?

Yes — the map above. Each dot is one nuclear power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest nuclear power plant in Pennsylvania?

Peach Bottom, at 3 GW. The table is sorted largest first, so the rest follow it.

Is there a nuclear power plant 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 nuclear power plants?

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 "Nuclear" — commercial reactors reporting on EIA-860M. 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.

Nuclear Power Plants in Pennsylvania

Every operating nuclear power plant in Pennsylvania on EIA-860M for 2026-07: 5 plants, 9 reactors and 11 GW of nameplate capacity across 5 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: 5; 9 generating units
Nameplate capacity: 11 GW
Counties: 5
Grid operator: PJM; covers most of these plants

Map of nuclear power plants in Pennsylvania

Every one of the 5 plants is drawn at the coordinate EIA files for it.

Loading map…

Nuclear · 5

List of nuclear power plants in Pennsylvania

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

nuclear power plants in Pennsylvania

Peach BottomNuclear	Constellation Nuclear	York	2,876.4	2	1974	Operating
TalenEnergy SusquehannaNuclear	TalenEnergy Susquehanna LLC	Luzerne	2,532	2	1983	Operating
LimerickNuclear	Constellation Nuclear	Montgomery	2,277	2	1986	Operating
Beaver ValleyNuclear	Energy Harbor Nuclear Generation LLC	Beaver	1,846.8	2	1976	Operating
Crane Clean Energy CenterNuclear	Constellation Nuclear	Dauphin	980.8	1	1974	Out of service and NOT expected to return to service in next calendar year

Largest nuclear power plants in Pennsylvania

1Peach BottomYork County, Pennsylvania2,876.4 MW
2TalenEnergy SusquehannaLuzerne County, Pennsylvania2,532 MW
3LimerickMontgomery County, Pennsylvania2,277 MW
4Beaver ValleyBeaver County, Pennsylvania1,846.8 MW
5Crane Clean Energy CenterDauphin County, Pennsylvania980.8 MW

Nuclear power plants 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
York	1	2,876.4
Luzerne	1	2,532
Montgomery	1	2,277
Beaver	1	1,846.8
Dauphin	1	980.8

Nuclear Power Plants in Pennsylvania: FAQ

How many nuclear power plants are in Pennsylvania?: 5, with 11 GW of nameplate capacity between them, spread over 5 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Pennsylvania nuclear power plants?: Yes — the map above. Each dot is one nuclear power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest nuclear power plant in Pennsylvania?: Peach Bottom, at 3 GW. The table is sorted largest first, so the rest follow it.
Is there a nuclear power plant 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 nuclear power plants?: 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 "Nuclear" — commercial reactors reporting on EIA-860M. 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.