Nameplate capacity
90 MW
Rank in Iowa
#88
of 305 plants
In service since
1991
May 1991
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- Interstate Power and Light Co
- County
- Cerro Gordo County
- Generating units
- 2
- Share of state capacity
- 0.36%
- Rank among other plants in Iowa
- #1 of 90
- EIA plant code
- 7155
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 45 MW | 36 MW | 1991 | Operating |
| 2 | Petroleum Liquids | 45 MW | 35 MW | 1991 | 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
| Hancock County Wind Energy Center | Wind | 98 MW |
| Ivester Wind Farm | Wind | 91 MW |
| Roquette America | Natural gas | 84 MW |
| Storm Lake II | Wind | 80 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 90 MW solar plant and a 90 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