Otter Creek Ethanol Poet - Ashton
Natural gas power plant · Osceola County, Iowa
Nameplate capacity
7.5 MW
Rank in Iowa
#172
of 305 plants
In service since
2004
March 2004
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Otter Creek Ethanol LLC - Poet Ashton
- County
- Osceola County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among natural gas plants in Iowa
- #34 of 42
- EIA plant code
- 58138
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 7.5 MW | 5.5 MW | 2004 | 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
| CED Mason City Wind | Wind | 7.5 MW |
| Laurens | Other | 7.5 MW |
| University of Northern Iowa | Natural gas | 7.5 MW |
| Cascade | Other | 7.2 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 7.5 MW solar plant and a 7.5 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