St. Charles Power Plant
Other power plant · Winona County, Minnesota
Nameplate capacity
8.8 MW
Rank in Minnesota
#151
of 804 plants
In service since
2004
December 2004
Details
- Primary fuel
- Other
- Technology
- Petroleum Liquids
- Operator
- City of St Charles - (MN)
- County
- Winona County
- Generating units
- 4
- Share of state capacity
- 0.04%
- Rank among other plants in Minnesota
- #36 of 71
- EIA plant code
- 56100
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Petroleum Liquids | 2.2 MW | 2.0 MW | 2004 | Operating |
| 2 | Petroleum Liquids | 2.2 MW | 2.0 MW | 2004 | Operating |
| 3 | Petroleum Liquids | 2.2 MW | 2.0 MW | 2004 | Operating |
| 4 | Petroleum Liquids | 2.2 MW | 2.0 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 Minnesota
| Springfield (MN) | Other | 9.0 MW |
| Wells IC | Natural gas | 9.0 MW |
| Blooming Prairie | Other | 8.6 MW |
| St. Cloud Hydro | Hydro | 8.6 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 8.8 MW solar plant and a 8.8 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