St Clair
St. Clair County, Michigan · EIA plant ID 1743 · Operator: DTE Electric Company
×1,215 MW coal retired since 2020 (latest Jun 2024)
Nameplate19MWSummer 19 MW
Generators1in service
Net generation7GWh12 mo to Aug 2026
Capacity factor4%gas/coal/oil units, summer MW
Heat rate15,261Btu/kWhfossil units, electric fuel, HHV
First online1968Runs as rarely runs
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2001 | 5,764.3 | — | — |
| 2002 | 6,965.1 | — | — |
| 2003 | 6,705.8 | 45.3% | 10,782 |
| 2004 | 7,387.1 | 49.8% | 10,485 |
| 2005 | 7,378.7 | 49.9% | 10,598 |
| 2006 | 7,439.1 | 61.0% | 10,779 |
| 2007 | 7,614.9 | 62.4% | 10,778 |
| 2008 | 7,679.9 | 62.8% | 10,863 |
| 2009 | 6,574.4 | 53.9% | 10,887 |
| 2010 | 6,786.6 | 55.5% | 10,996 |
| 2011 | 6,135.6 | 50.1% | 11,065 |
| 2012 | 5,427.4 | 44.2% | 11,349 |
| 2013 | 6,242.5 | 51.0% | 11,141 |
| 2014 | 5,415.9 | 44.5% | 10,889 |
| 2015 | 5,446.5 | 44.7% | 10,964 |
| 2016 | 3,678.7 | 30.1% | 11,076 |
| 2017 | 3,548 | 29.7% | 11,300 |
| 2018 | 4,530.9 | 41.7% | 11,312 |
| 2019 | 3,901 | 40.0% | 11,422 |
| 2020 | 1,639.8 | 17.1% | 12,322 |
| 2021 | 3,220.4 | 33.8% | 11,184 |
| 2022 | 1,650.3 | 18.9% | 11,321 |
| 2023 | 0.3 | 0.2% | 25,281 |
| 2024 | 0.5 | 0.2% | 20,821 |
| 2025 | 4.4 | 2.7% | 14,787 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo417 MMBtu
Last month with liquid burnMar 2026
Switch while operatingYes
Net summer MW on gas18
Net summer MW on oil18
Time gas → oilunknown (EIA UNK)
Time oil → gasunknown (EIA UNK)
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 |
|---|---|---|---|---|---|---|---|---|
| 11 | Natural Gas Fired Combustion Turbine | GT | 18.5 | 19 | May 1968 | Operating | — | coming soon |
| 1 | Conventional Steam Coal | ST | 168.7 | 151 | Aug 1953 | Retired Mar 2019 | — | coming soon |
| 12A | Petroleum Liquids | IC | 2.7 | 2 | Dec 1970 | Retired Jun 2024 | — | coming soon |
| 12B | Petroleum Liquids | IC | 2.7 | 3 | Dec 1970 | Retired Jun 2024 | — | coming soon |
| 2 | Conventional Steam Coal | ST | 156.2 | 154 | Nov 1953 | Retired Dec 2022 | — | coming soon |
| 3 | Conventional Steam Coal | ST | 156.2 | 160 | Jun 1954 | Retired Dec 2022 | — | coming soon |
| 4 | Conventional Steam Coal | ST | 168.7 | 151 | Oct 1954 | Retired Nov 2017 | — | coming soon |
| 5 | Petroleum Liquids | ST | 357.7 | 250 | Apr 1959 | Retired Jan 1980 | — | coming soon |
| 6 | Conventional Steam Coal | ST | 352.7 | 311 | Apr 1961 | Retired Dec 2022 | — | coming soon |
| 7 | Conventional Steam Coal | ST | 544.5 | 440 | Apr 1969 | Retired Dec 2022 | — | coming soon |
Owner / operator
Operator: DTE Electric Company. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| DTE Electric Company | 100.0% | 19 MW |
Nearby plants
Within 80 km.
| Blue Water Energy Center | 1,267 MW | 1.2 km |
| Belle River | 1,664 MW | 2.3 km |
| DTE East China LLC | 358 MW | 4.4 km |
| Cargill Salt | 4 MW | 6.1 km |
| Blue Water Renewables Inc | 3 MW | 19.6 km |
| Pine Tree Acres WM LFGTE | 13 MW | 22.3 km |