St. Charles Power Plant
Winona County, Minnesota · EIA plant ID 56100 · Operator: City of St Charles - (MN)
Nameplate9MWSummer 8 MW
Generators4in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate9,237Btu/kWhfossil units, electric fuel, HHV
First online2004Runs as rarely runs
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2005 | 0.2 | 0.3% | 10,249 |
| 2006 | 0.2 | 0.3% | 8,537 |
| 2007 | 0.4 | 0.6% | 7,431 |
| 2008 | 0.2 | 0.2% | 10,205 |
| 2009 | 0 | 0.1% | 10,065 |
| 2010 | 0.1 | 0.1% | 7,820 |
| 2011 | 0 | 0.1% | 8,545 |
| 2012 | 0.1 | 0.1% | 8,275 |
| 2013 | 0 | 0.1% | 9,405 |
| 2014 | 0 | 0.1% | 8,435 |
| 2015 | 0 | 0.1% | 8,525 |
| 2016 | 0.1 | 0.1% | 8,471 |
| 2017 | 0 | 0.1% | 10,979 |
| 2018 | 0.1 | 0.1% | 11,383 |
| 2019 | 0 | 0.1% | 10,755 |
| 2020 | 0.1 | 0.1% | 9,456 |
| 2021 | 0.1 | 0.1% | 8,970 |
| 2022 | 0.1 | 0.1% | 9,133 |
| 2023 | 0.1 | 0.1% | 9,000 |
| 2024 | 0.1 | 0.1% | 9,155 |
| 2025 | 0.1 | 0.1% | 9,237 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Petroleum Liquids | IC | 2.2 | 2 | Dec 2004 | Operating | — | coming soon |
| 2 | Petroleum Liquids | IC | 2.2 | 2 | Dec 2004 | Operating | — | coming soon |
| 3 | Petroleum Liquids | IC | 2.2 | 2 | Dec 2004 | Operating | — | coming soon |
| 4 | Petroleum Liquids | IC | 2.2 | 2 | Dec 2004 | Operating | — | coming soon |
Owner / operator
Operator: City of St Charles - (MN). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of St Charles - (MN) | 100.0% | 9 MW |
Nearby plants
Within 80 km.
| St. Charles Solar | 2 MW | 2.2 km |
| GL Wind | 5 MW | 14.7 km |
| Winona Garden | 1 MW | 18 km |
| Winona County Wind LLC | 2 MW | 18.8 km |
| Novel Herber Solar CSG | 1 MW | 20.2 km |
| Winona Solar | 1 MW | 20.9 km |