St Louis
Gratiot County, Michigan · EIA plant ID 1852 · Operator: City of St Louis - (MI)
×2 MW oil retired since 2020 (latest Jan 2021)
Nameplate6MWSummer 5 MW
Generators6in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate24,375Btu/kWhfossil units, electric fuel, HHV
First online1919Runs 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) |
|---|---|---|---|
| 2002 | 0.1 | — | — |
| 2003 | 0 | 0.0% | — |
| 2004 | 0.3 | — | — |
| 2005 | 0.4 | 0.1% | 7,385 |
| 2006 | 0.9 | 0.1% | 10,313 |
| 2007 | 0.5 | 0.0% | 9,999 |
| 2008 | 0.5 | 0.0% | 11,143 |
| 2009 | 0.7 | 0.0% | 9,750 |
| 2010 | 0.8 | 0.0% | 13,000 |
| 2011 | 0.9 | 0.0% | 12,800 |
| 2012 | 0.7 | 0.0% | 8,375 |
| 2013 | 0.7 | 0.0% | 13,400 |
| 2014 | 0.7 | 0.0% | 10,929 |
| 2015 | 0.7 | 0.0% | 11,133 |
| 2016 | 0.8 | 0.0% | 10,882 |
| 2017 | 0.9 | 0.0% | 11,867 |
| 2018 | 1 | 0.0% | 14,000 |
| 2019 | 1 | 0.0% | 14,400 |
| 2020 | 0.7 | 0.0% | 16,750 |
| 2021 | 0.4 | 0.0% | 13,000 |
| 2022 | 0.5 | 0.0% | 16,500 |
| 2023 | 0.2 | 0.0% | 12,750 |
| 2024 | 0 | 0.0% | 15,429 |
| 2025 | 0 | 0.0% | 24,375 |
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 | 1.3 | 1.3 | Jan 1958 | Operating (Standby / backup) | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 0.2 | 0.2 | Jan 1919 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 0.2 | 0.2 | Jan 1919 | Operating | — | coming soon |
| 7 | Petroleum Liquids | IC | 1.1 | 1.1 | Jul 1996 | Operating (Standby / backup) | — | coming soon |
| 8 | Petroleum Liquids | IC | 1.5 | 1.5 | May 2003 | Operating | — | coming soon |
| 9 | Petroleum Liquids | IC | 1.3 | 1.1 | May 2003 | Operating (Standby / backup) | — | coming soon |
| 2 | Petroleum Liquids | IC | 0.6 | 0.6 | Jan 1945 | Retired Jan 2021 | — | coming soon |
| 3 | Petroleum Liquids | IC | 0.9 | 0.9 | Jan 1951 | Retired Jan 2021 | — | coming soon |
Owner / operator
Operator: City of St Louis - (MI). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of St Louis - (MI) | 100.0% | 6 MW |
Nearby plants
Within 80 km.
| Pine River Solar Park | 80 MW | 7.4 km |
| Gratiot Wind Park | 102 MW | 9.1 km |
| Gratiot Solar Park | — | 9.2 km |
| Gratiot County Wind LLC | 110 MW | 11.3 km |
| Pine River Wind Park | 161 MW | 15.6 km |
| Polaris Wind Park | 169 MW | 17.5 km |