Marmas Solar CSG
Solar power plant · Sherburne County, Minnesota
Nameplate capacity
4.0 MW
Rank in Minnesota
#288
of 804 plants
In service since
2018
April 2018
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Geronimo Power
- County
- Sherburne County
- Generating units
- 4
- Share of state capacity
- 0.02%
- Rank among solar plants in Minnesota
- #106 of 540
- EIA plant code
- 61139
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MARM2 | Solar Photovoltaic | 1.0 MW | 1.0 MW | 2018 | Operating |
| MARM3 | Solar Photovoltaic | 1.0 MW | 1.0 MW | 2018 | Operating |
| MARM4 | Solar Photovoltaic | 1.0 MW | 1.0 MW | 2018 | Operating |
| MARM5 | Solar Photovoltaic | 1.0 MW | 1.0 MW | 2018 | 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 Minnesota
| Halstad | Other | 4.0 MW |
| Helen Solar CSG | Solar | 4.0 MW |
| Michael Solar | Solar | 4.0 MW |
| Pine Island Solar | Solar | 4.0 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 4.0 MW solar plant and a 4.0 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 Minnesota power plants · What Minnesota actually generates