State Center
Marshall County, Iowa · EIA plant ID 1187 · Operator: City of State Center - (IA)
Nameplate7MWSummer 7 MW
Generators6in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate10,869Btu/kWhfossil units, electric fuel, HHV
First online1972Runs 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) |
|---|---|---|---|
| 2002 | 0.4 | 0.7% | 17,913 |
| 2003 | 0.9 | 1.7% | 11,010 |
| 2004 | 0.4 | 0.8% | 10,781 |
| 2005 | 0.1 | 0.2% | 9,636 |
| 2006 | 0.2 | 0.3% | 9,819 |
| 2007 | 0.2 | 0.4% | — |
| 2008 | 0 | 0.1% | 9,882 |
| 2009 | 0 | 0.0% | 12,000 |
| 2010 | 0.1 | 0.2% | 6,534 |
| 2011 | 0.2 | 0.4% | 6,663 |
| 2012 | 0.3 | 0.5% | 6,822 |
| 2013 | 0.1 | 0.1% | 7,790 |
| 2014 | 0.1 | 0.1% | — |
| 2015 | 0.1 | 0.2% | 12,404 |
| 2016 | 0.2 | 0.3% | 6,652 |
| 2017 | 0.1 | 0.2% | 6,322 |
| 2018 | 0.1 | 0.2% | 13,294 |
| 2019 | 0.1 | 0.2% | 16,598 |
| 2020 | 0.3 | 0.5% | 10,634 |
| 2021 | 0.5 | 0.9% | 29,028 |
| 2022 | 0.1 | 0.1% | 10,854 |
| 2023 | 0.1 | 0.1% | 11,189 |
| 2024 | 0.1 | 0.1% | 10,867 |
| 2025 | 0.2 | 0.3% | 10,869 |
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 | Petroleum Liquids | IC | 0.6 | 0.6 | May 1995 | Operating | — | coming soon |
| 2 | Petroleum Liquids | IC | 0.6 | 0.6 | May 1995 | Operating | — | coming soon |
| 3 | Petroleum Liquids | IC | 1.3 | 1.3 | May 1995 | Operating | — | coming soon |
| 4 | Petroleum Liquids | IC | 1.3 | 1.3 | May 1995 | Operating | — | coming soon |
| 6 | Natural Gas Internal Combustion Engine | IC | 2.5 | 2.5 | Aug 1972 | Operating | — | coming soon |
| 7 | Solar Photovoltaic | PV | 0.8 | 0.6 | Dec 2017 | Operating | — | coming soon |
Owner / operator
Operator: City of State Center - (IA). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of State Center - (IA) | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| FPL Energy Story Wind LLC | 150 MW | 13.3 km |
| Optimum Wind 7 LLC | 3 MW | 22.1 km |
| Alliant SBD 9107 JBS USA | 11 MW | 22.4 km |
| Laurel Wind Farm | 123 MW | 24.1 km |
| Marshalltown Generating Station | 709 MW | 24.2 km |
| Marshalltown | 189 MW | 25.3 km |