Nameplate capacity
128 MW
Rank in Iowa
#67
of 305 plants
In service since
1966
May 1966
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- MidAmerican Energy Co
- County
- Polk County
- Generating units
- 8
- Share of state capacity
- 0.51%
- Rank among natural gas plants in Iowa
- #11 of 42
- EIA plant code
- 1084
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1966 | Operating |
| 2 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1966 | Operating |
| 3 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1966 | Operating |
| 4 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1966 | Operating |
| 5 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1967 | Operating |
| 6 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1967 | Operating |
| 7 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1968 | Operating |
| 8 | Natural Gas Fired Combustion Turbine | 16 MW | 14 MW | 1968 | 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
| Wellsburg Wind Project | Wind | 141 MW |
| Richland (IA) | Wind | 131 MW |
| Keokuk | Hydro | 125 MW |
| Laurel Wind Farm | Wind | 123 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 128 MW solar plant and a 128 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