Constantine
St. Joseph County, Michigan · EIA plant ID 1760 · Operator: Indiana Michigan Power Co
Nameplate1MWSummer 0 MW
Generators4in service
Net generation4GWh12 mo to Dec 2025
Capacity factor111%!hydro units, summer MW
Heat rate—thermal plants only
First online1923
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 6 | 86.2% | — |
| 2002 | 4.7 | 60.1% | — |
| 2003 | 4.9 | 62.3% | — |
| 2004 | 5.4 | 68.6% | — |
| 2005 | 4 | 92.2% | — |
| 2006 | 6.2 | 141.8% | — |
| 2007 | 5.4 | 123.7% | — |
| 2008 | 4.6 | 104.4% | — |
| 2009 | 5.3 | 122.1% | — |
| 2010 | 6.1 | 140.3% | — |
| 2011 | 6.9 | 158.5% | — |
| 2012 | 4.9 | 111.8% | — |
| 2013 | 4.8 | 135.6% | — |
| 2014 | 5.1 | 146.7% | — |
| 2015 | 4.6 | 131.4% | — |
| 2016 | 5.4 | 154.8% | — |
| 2017 | 4.7 | 132.7% | — |
| 2018 | 4.3 | 123.5% | — |
| 2019 | 3.9 | 111.9% | — |
| 2020 | 5 | 141.9% | — |
| 2021 | 4.8 | 137.8% | — |
| 2022 | 4.8 | 137.0% | — |
| 2023 | 3.8 | 107.8% | — |
| 2024 | 3.5 | 100.0% | — |
| 2025 | 3.9 | 111.1% | — |
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 | Conventional Hydroelectric | HY | 0.3 | 0.1 | Jan 1923 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 0.3 | 0.1 | Jan 1923 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 0.3 | 0.1 | Jan 1929 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 0.3 | 0.1 | Jan 1923 | Operating | — | coming soon |
Owner / operator
Operator: Indiana Michigan Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Indiana Michigan Power Co | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Mottville | 2 MW | 7.9 km |
| Middlebury Solar | 2 MW | 16.3 km |
| Hydro Plant | 2 MW | 17.9 km |
| Sturgis City Diesel Plant | 6 MW | 20.8 km |
| Electric City Solar | 15 MW | 21 km |
| Elkhart | 3 MW | 29.7 km |