How many nuclear power plants are in PJM?

PJM has 18 operating utility-scale nuclear power plants with 35 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest nuclear power plant in PJM?

Peach Bottom in York County, Pennsylvania is the largest, at 2,876 MW. It came online in 1974.

How many nuclear power plants were built in PJM in 2025?

0 nuclear power plants came online in PJM in 2025, with 0 MW of capacity.

Who is developing nuclear power plants in PJM?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Nuclear power plants in PJM

PJM has 18 operating nuclear power plants with 35 GW of capacity.

Operating18

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

PJM had 18 nuclear power plants online in 2016 and 18 in 2026

2016’162017’172018’182019’192020’202021’212022’222023’232024’242025’252026’26

Nuclear power plants online at the end of each year. Source: EIA-860M, compiled by Cleanview.

The 10 largest nuclear power plants in PJM

Operating, by capacity

#	Nuclear power plant	Location	Year online	Capacity
1	Peach Bottom	York County, Pennsylvania	1974	2,876 MW
2	TalenEnergy Susquehanna	Luzerne County, Pennsylvania	1985	2,532 MW
3	Braidwood Generation Station	Will County, Illinois	1988	2,450 MW
4	Byron Generating Station	Ogle County, Illinois	1987	2,450 MW
5	PSEG Salem Generating Station	Salem County, New Jersey	1981	2,340 MW
6	LaSalle Generating Station	LaSalle County, Illinois	1984	2,340 MW
7	Donald C Cook	Berrien County, Michigan	1978	2,285 MW
8	Limerick	Montgomery County, Pennsylvania	1990	2,277 MW
9	Dresden Generating Station	Grundy County, Illinois	1971	2,019 MW
10	Quad Cities Generating Station	Rock Island County, Illinois	1972	2,019 MW

Nuclear power plants that came online most recently in PJM

Newest first

#	Nuclear power plant	Location	Year online	Capacity
1	Limerick	Montgomery County, Pennsylvania	1990	2,277 MW
2	Braidwood Generation Station	Will County, Illinois	1988	2,450 MW
3	Perry	Lake County, Ohio	1987	1,312 MW
4	Beaver Valley	Beaver County, Pennsylvania	1987	1,847 MW
5	Byron Generating Station	Ogle County, Illinois	1987	2,450 MW
6	PSEG Hope Creek Generating Station	Salem County, New Jersey	1986	1,291 MW
7	TalenEnergy Susquehanna	Luzerne County, Pennsylvania	1985	2,532 MW
8	LaSalle Generating Station	LaSalle County, Illinois	1984	2,340 MW
9	PSEG Salem Generating Station	Salem County, New Jersey	1981	2,340 MW
10	North Anna	Louisa County, Virginia	1980	1,959 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks nuclear power plants

Operating nuclear power plants come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about nuclear power plants in PJM

How many nuclear power plants are in PJM?: PJM has 18 operating utility-scale nuclear power plants with 35 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest nuclear power plant in PJM?: Peach Bottom in York County, Pennsylvania is the largest, at 2,876 MW. It came online in 1974.
How many nuclear power plants were built in PJM in 2025?: 0 nuclear power plants came online in PJM in 2025, with 0 MW of capacity.
Who is developing nuclear power plants in PJM?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.