Nameplate capacity
158 MW
Rank in Iowa
#57
of 305 plants
In service since
1974
August 1974
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- MidAmerican Energy Co
- County
- Polk County
- Generating units
- 2
- Share of state capacity
- 0.63%
- Rank among natural gas plants in Iowa
- #10 of 42
- EIA plant code
- 8029
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 79 MW | 70 MW | 1974 | Operating |
| 2 | Natural Gas Fired Combustion Turbine | 79 MW | 71 MW | 1974 | 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
| Carroll Wind Farm | Wind | 159 MW |
| Barton Windpower LLC | Wind | 158 MW |
| Adams Wind | Wind | 154 MW |
| Kossuth | Wind | 152 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 158 MW solar plant and a 158 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