Cleanview

Hydro power plants in Ohio

Ohio has 4 operating hydro power plants with 0.1 GW of capacity.

  • Operating4
ColumbusClevelandCincinnatiToledoDayton

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

The largest hydro power plants in Ohio

Operating, by capacity

#Hydro power plantYear onlineCapacity
1Greenup Hydro198270 MW
2Racine198347 MW
3Auglaize Hydro20044 MW
4Hamilton Hydro19942 MW

Hydro power plants that came online most recently in Ohio

Newest first

#Hydro power plantYear onlineCapacity
1Auglaize Hydro20044 MW
2Hamilton Hydro19942 MW
3Racine198347 MW
4Greenup Hydro198270 MW
The developer behind each project is on paid plans. See plans

How Cleanview tracks hydro power plants

Operating hydro 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 hydro power plants in Ohio

How many hydro power plants are in Ohio?
Ohio has 4 operating utility-scale hydro power plants with 0.1 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest hydro power plant in Ohio?
Greenup Hydro in Scioto County, Ohio is the largest, at 70 MW. It came online in 1982.
How many hydro power plants were built in Ohio in 2025?
0 hydro power plants came online in Ohio in 2025, with 0 MW of capacity.
Who is developing hydro 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

Hydro power plants in other states

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