Nameplate capacity
119 MW
Rank in Iowa
#72
of 305 plants
In service since
1973
July 1973
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Central Iowa Power Cooperative
- County
- Union County
- Generating units
- 5
- Share of state capacity
- 0.48%
- Rank among natural gas plants in Iowa
- #13 of 42
- EIA plant code
- 1206
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GT2 | Natural Gas Fired Combustion Turbine | 35 MW | 27 MW | 1975 | Operating |
| GT1 | Natural Gas Fired Combustion Turbine | 27 MW | 29 MW | 1973 | Operating |
| R1 | Natural Gas Internal Combustion Engine | 19 MW | 18 MW | 2021 | Operating |
| R2 | Natural Gas Internal Combustion Engine | 19 MW | 18 MW | 2021 | Operating |
| R3 | Natural Gas Internal Combustion Engine | 19 MW | 18 MW | 2021 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Iowa
| Macksburg Wind Project | Wind | 120 MW |
| Earl F Wisdom | Natural gas | 119 MW |
| Storm Lake 1 | Wind | 114 MW |
| Contrail Wind Farm | Wind | 112 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 119 MW solar plant and a 119 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Iowa power plants · What Iowa actually generates