Osage (IA)
Mitchell County, Iowa · EIA plant ID 1172 · Operator: City of Osage - (IA)
Nameplate19MWSummer 18 MW
Generators6in service
Net generation5GWh12 mo to Dec 2025
Capacity factor-0%!gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1963Runs as rarely runs
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 2.3 | — | — |
| 2002 | 1 | — | — |
| 2003 | 1 | 0.7% | 9,906 |
| 2004 | 0.7 | 0.5% | 10,499 |
| 2005 | 0.6 | 0.4% | 11,983 |
| 2006 | 1 | 0.7% | 11,668 |
| 2007 | 1.4 | 1.0% | 14,889 |
| 2008 | 0.1 | 0.1% | 28,821 |
| 2009 | 0.1 | 0.1% | 13,492 |
| 2010 | 4.8 | 0.1% | 11,319 |
| 2011 | 4.6 | 0.1% | 12,743 |
| 2012 | 5 | 0.1% | 10,950 |
| 2013 | 4.8 | 0.1% | 12,130 |
| 2014 | 5.1 | -0.1% | — |
| 2015 | 4.9 | -0.1% | — |
| 2016 | 3.4 | -0.9% | — |
| 2017 | 3.6 | -0.8% | — |
| 2018 | 5.1 | -0.1% | — |
| 2019 | 5.2 | -0.0% | — |
| 2020 | 5.3 | -0.0% | — |
| 2021 | 5.2 | -0.1% | — |
| 2022 | 5.4 | -0.1% | — |
| 2023 | 3.8 | -0.1% | — |
| 2024 | 5.6 | -0.1% | — |
| 2025 | 5.5 | -0.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 5 | Natural Gas Internal Combustion Engine | IC | 3.2 | 3.1 | Sep 1963 | Operating (Standby / backup) | — | coming soon |
| 6 | Natural Gas Internal Combustion Engine | IC | 6.2 | 6 | Oct 1973 | Operating (Standby / backup) | — | coming soon |
| 7 | Petroleum Liquids | IC | 3.6 | 3.6 | May 1996 | Operating (Standby / backup) | — | coming soon |
| 8 | Petroleum Liquids | IC | 3.6 | 3.6 | May 1998 | Operating (Standby / backup) | — | coming soon |
| SO | Solar Photovoltaic | PV | 0.8 | 0.8 | Nov 2016 | Operating | — | coming soon |
| W1 | Onshore Wind Turbine | WT | 1.6 | 0.5 | Dec 2009 | Operating | — | ge 1.5 SLE |
Owner / operator
Operator: City of Osage - (IA). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Osage - (IA) | 100.0% | 19 MW |
Nearby plants
Within 80 km.
| Maple City | 2 MW | 1.6 km |
| Buffalo Center Wind LLC | 2 MW | 12.5 km |
| Little Cedar | 3 MW | 13.1 km |
| Turtle Creek Wind Farm LLC | 199 MW | 16.8 km |
| Douglas (IA) | 3 MW | 19.6 km |
| Barton Windpower LLC | 158 MW | 25.9 km |