Cleanview

Hydro power plants in Iowa

Iowa has 4 operating hydro power plants with 0.2 GW of capacity.

  • Operating4
Des MoinesCedar RapidsDavenportSioux CityCouncil Bluffs

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

The largest hydro power plants in Iowa

Operating, by capacity

#Hydro power plantYear onlineCapacity
1Keokuk1913125 MW
2Red Rock Hydro Plant202155 MW
3Ottumwa City of19313 MW
4Iowa Hydro LLC19241 MW

Hydro power plants that came online most recently in Iowa

Newest first

#Hydro power plantYear onlineCapacity
1Red Rock Hydro Plant202155 MW
2Ottumwa City of19313 MW
3Iowa Hydro LLC19241 MW
4Keokuk1913125 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 Iowa

How many hydro power plants are in Iowa?
Iowa has 4 operating utility-scale hydro power plants with 0.2 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest hydro power plant in Iowa?
Keokuk in Lee County, Iowa is the largest, at 125 MW. It came online in 1913.
How many hydro power plants were built in Iowa in 2025?
0 hydro power plants came online in Iowa in 2025, with 0 MW of capacity.
Who is developing hydro power plants in Iowa?
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 Iowa

Hydro power plants in other states

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