REG Mason City Solar
Solar power plant · Cerro Gordo County, Iowa
Nameplate capacity
2.6 MW
Rank in Iowa
#244
of 305 plants
In service since
2024
December 2024
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- REG Mason City, LLC
- County
- Cerro Gordo County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among solar plants in Iowa
- #19 of 34
- EIA plant code
- 69243
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MCPV1 | Solar Photovoltaic | 2.6 MW | 2.6 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
| Stuart (IA) | Other | 2.8 MW |
| Waverly Community Wind Project | Wind | 2.7 MW |
| Decorah Battery | Battery storage | 2.5 MW |
| Douglas (IA) | Solar | 2.5 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 2.6 MW solar plant and a 2.6 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