Ottumwa City of
Wapello County, Iowa · EIA plant ID 1173 · Operator: Ottumwa City of
Nameplate3MWSummer 3 MW
Generators3in service
Net generation3GWh12 mo to Dec 2025
Capacity factor10%hydro units, summer MW
Heat rate—thermal plants only
First online1931
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2002 | 11.9 | 42.5% | — |
| 2003 | 6.1 | 21.7% | — |
| 2004 | 10.6 | 37.8% | — |
| 2005 | 13.9 | 49.5% | — |
| 2006 | 16.9 | 60.4% | — |
| 2007 | 13.7 | 48.8% | — |
| 2008 | 12.7 | 45.3% | — |
| 2009 | 13.5 | 48.3% | — |
| 2010 | 8.8 | 31.4% | — |
| 2011 | 6.5 | 23.3% | — |
| 2012 | 6.5 | 23.2% | — |
| 2013 | 4.2 | 14.8% | — |
| 2014 | 2.5 | 9.0% | — |
| 2015 | 7.7 | 27.5% | — |
| 2016 | 8.9 | 31.7% | — |
| 2017 | 9.7 | 34.6% | — |
| 2018 | 7.6 | 27.0% | — |
| 2019 | 5.7 | 20.3% | — |
| 2020 | 7.8 | 27.9% | — |
| 2021 | 8.4 | 30.0% | — |
| 2022 | 6.4 | 22.9% | — |
| 2023 | 5.3 | 18.8% | — |
| 2024 | 1 | 3.5% | — |
| 2025 | 2.9 | 10.2% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 1 | 1 | Aug 1931 | Operating (Out of service) | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 1.2 | 1.2 | Aug 1931 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 1 | 1 | Aug 1931 | Operating | — | coming soon |
Owner / operator
Operator: Ottumwa City of. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Ottumwa City of | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Ottumwa | 726 MW | 14.8 km |
| Cargill Corn Milling Division | 40 MW | 23.7 km |
| Bloomfield Municipal Utilities Solar | 2 MW | 29.8 km |
| Bloomfield | 9 MW | 34.8 km |
| CED Centerville Wind | 8 MW | 49.9 km |
| Prairie Wind Farm | 168 MW | 52.6 km |