Coralville GT
Natural gas power plant · Johnson County, Iowa
Nameplate capacity
72 MW
Rank in Iowa
#97
of 305 plants
In service since
1970
June 1970
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- MidAmerican Energy Co
- County
- Johnson County
- Generating units
- 4
- Share of state capacity
- 0.29%
- Rank among natural gas plants in Iowa
- #16 of 42
- EIA plant code
- 1079
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 18 MW | 16 MW | 1970 | Operating |
| 2 | Natural Gas Fired Combustion Turbine | 18 MW | 17 MW | 1970 | Operating |
| 3 | Natural Gas Fired Combustion Turbine | 18 MW | 15 MW | 1970 | Operating |
| 4 | Natural Gas Fired Combustion Turbine | 18 MW | 16 MW | 1970 | 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
| Sac County Wind, LLC | Wind | 80 MW |
| Ames GT | Other | 79 MW |
| Kossuth County Wind | Wind | 70 MW |
| Crystal Lake 3 LLC | Wind | 66 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 72 MW solar plant and a 72 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