Ottumwa City of
Hydro power plant in Wapello County, Iowa. 2.2 MW of nameplate capacity across 2 generators, operated by City of Ottumwa - (IA).
Also known as City of Ottumwa Power Plant · EIA plant 1173
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2.2 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- August 1931First generator online
- Operator
- City of Ottumwa - (IA)EIA operator ID 14236
- Grid
- MISOBalancing authority MISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Wapello County, IA41.0163, −92.4149
- EIA plant ID
- 1173EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Ottumwa City of produces
Free · EIA-923Net generation, 2025
2.85 GWh
2,851 MWh, final
Capacity factor, 2025
10.2%
2024: 3.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.0–9.7
GWh a year. Low 2024, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | 11,917 | Not reported | 12 of 12 |
| 2003 | 6,084 | Not reported | 12 of 12 |
| 2004 | 10,636 | Not reported | 12 of 12 |
| 2005 | 13,889 | Not reported | 12 of 12 |
| 2006 | 16,934 | Not reported | 12 of 12 |
| 2007 | 13,680 | Not reported | 12 of 12 |
| 2008 | 12,740 | Not reported | 12 of 12 |
| 2009 | 13,526 | Not reported | 12 of 12 |
| 2010 | 8,793 | 31.4% | 12 of 12 |
| 2011 | 6,518 | 23.3% | 12 of 12 |
| 2012 | 6,528 | 23.2% | 12 of 12 |
| 2013 | 4,152 | 14.8% | 12 of 12 |
| 2014 | 2,515 | 9.0% | 12 of 12 |
| 2015 | 7,718 | 27.5% | 12 of 12 |
| 2016 | 8,908 | 31.7% | 12 of 12 |
| 2017 | 9,700 | 34.6% | 12 of 12 |
| 2018 | 7,574 | 27.0% | 12 of 12 |
| 2019 | 5,692 | 20.3% | 12 of 12 |
| 2020 | 7,833 | 27.9% | 12 of 12 |
| 2021 | 8,397 | 30.0% | 12 of 12 |
| 2022 | 6,418 | 22.9% | 12 of 12 |
| 2023 | 5,260 | 18.8% | 12 of 12 |
| 2024 | 974 | 3.5% | 12 of 12 |
| 2025 | 2,851 | 10.2% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 2 | Conventional Hydroelectric | 1.2 | August 1931 |
| 3 | Conventional Hydroelectric | 1.0 | August 1931 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists City of Ottumwa - (IA) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Ottumwa City of
How much power does Ottumwa City of produce?
Ottumwa City of reported 2,851 MWh (2.85 GWh) of net generation in 2025, a 10.2% capacity factor on 2.2 MW of nameplate capacity.
Where is Ottumwa City of?
Ottumwa City of is in Wapello County, Iowa, at 41.0163, −92.4149. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Ottumwa City of?
EIA-860M for August 2026 lists City of Ottumwa - (IA) as the operator (EIA operator ID 14236). The operator is not always the owner.
When did Ottumwa City of start operating?
Its first generator began operating in August 1931, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page