St Clair
Natural gas power plant in St Clair County, Michigan. 18.5 MW of nameplate capacity across 1 generator, operated by DTE Electric Company.
Also known as Saint Clair Power Plant · EIA plant 1743
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Key facts
- Capacity
- 18.5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- May 1968First generator online
- Operator
- DTE Electric CompanyEIA operator ID 5109
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- St Clair County, MI42.7642, −82.4719
- EIA plant ID
- 1743EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power St Clair produces
Free · EIA-923Net generation, 2025
Not reported
Not reported MWh, final. 0 of 12 months reported
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2021
3.2–5.4
TWh a year. Low 2021, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 7,357,188 | Not reported | 12 of 12 |
| 2001 | 5,764,277 | Not reported | 12 of 12 |
| 2002 | 6,965,078 | Not reported | 12 of 12 |
| 2003 | 6,705,759 | Not reported | 12 of 12 |
| 2004 | 7,387,066 | Not reported | 12 of 12 |
| 2005 | 7,378,682 | Not reported | 12 of 12 |
| 2006 | 7,439,052 | Not reported | 12 of 12 |
| 2007 | 7,614,925 | Not reported | 12 of 12 |
| 2008 | 3,575,996 | Not reported | 6 of 12 |
| 2009 | 6,574,360 | Not reported | 12 of 12 |
| 2010 | 6,786,642 | 49.3% | 12 of 12 |
| 2011 | 6,135,567 | 44.6% | 12 of 12 |
| 2012 | 5,427,433 | 39.3% | 12 of 12 |
| 2013 | 1,076,595 | 46.8% | 2 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | 5,446,470 | 39.6% | 12 of 12 |
| 2016 | 3,678,674 | Not reported | 12 of 12 |
| 2017 | 3,548,033 | Not reported | 12 of 12 |
| 2018 | 4,530,895 | Not reported | 12 of 12 |
| 2019 | 3,900,957 | Not reported | 12 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | 3,220,442 | 29.8% | 12 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | −93 | Not reported | 6 of 12 |
| 2025 | Not reported | Not reported | 0 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · MISOEmissions
Free · EPA CAMPDCO₂, 2022
1.87M
US short tons. 2021: 3.87M
SO₂, 2022
6,273
US short tons
NOx, 2022
1,761
US short tons
4 of 4 EPA units reported CO₂ in 2022 (1, 2, 3, 4, 6, 7), matched to EIA plant 1743 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 11 | Natural Gas Fired Combustion Turbine | 18.5 | May 1968 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists DTE Electric Company as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near St Clair
More plants operated by DTE Electric Company
Questions about St Clair
Where is St Clair?
St Clair is in St Clair County, Michigan, at 42.7642, −82.4719. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates St Clair?
EIA-860M for August 2026 lists DTE Electric Company as the operator (EIA operator ID 5109). The operator is not always the owner.
When did St Clair start operating?
Its first generator began operating in May 1968, according to EIA-860M.
Does InfraMap have power prices for St Clair?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to St Clair, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page