Grinnell College
Solar power plant · Poweshiek County, Iowa
Nameplate capacity
3.9 MW
Rank in Iowa
#211
of 305 plants
In service since
2024
April 2024
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Azimuth 180 Solar Electric, LLC
- County
- Poweshiek County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among solar plants in Iowa
- #12 of 34
- EIA plant code
- 65164
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GRIN | Solar Photovoltaic | 3.9 MW | 3.9 MW | 2024 | 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
| Villisca Municipal Power Plant | Other | 4.0 MW |
| West Diesel Generation Unit | Other | 4.0 MW |
| Ogden | Other | 3.9 MW |
| West Dubuque Solar | Solar | 3.8 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 3.9 MW solar plant and a 3.9 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