Cleanview

Nuclear power plants in Ohio

Ohio has 2 operating nuclear power plants with 2.2 GW of capacity.

  • Operating2
ColumbusClevelandCincinnatiToledoDayton

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

The largest nuclear power plants in Ohio

Operating, by capacity

#Nuclear power plantYear onlineCapacity
1Perry19871,312 MW
2Davis Besse1977925 MW

Nuclear power plants that came online most recently in Ohio

Newest first

#Nuclear power plantYear onlineCapacity
1Perry19871,312 MW
2Davis Besse1977925 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 Ohio

How many nuclear power plants are in Ohio?
Ohio has 2 operating utility-scale nuclear power plants with 2.2 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest nuclear power plant in Ohio?
Perry in Lake County, Ohio is the largest, at 1,312 MW. It came online in 1987.
How many nuclear power plants were built in Ohio in 2025?
0 nuclear power plants came online in Ohio in 2025, with 0 MW of capacity.
Who is developing nuclear power plants in Ohio?
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.

More energy trackers for Ohio

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