Ottumwa City of

The Ottumwa City Hydroelectric Plant, located in Ottumwa, Iowa, operates under the Midwest Reliability Organization. Utilizing hydraulic turbine technology, the plant has an operating capacity of 2.2 MW and is part of the Midcontinent Independent System Operator’s power control area. The facility is managed by the City of Ottumwa Iowa and is unregulated in its operations. The majority ownership lies with Ottumwa Waterworks & Hydro, which also serves as the owner holding company. The plant harnesses water as its fuel source and primarily sells power to Interstate Power and Light Company.