Power plants operated by Indiana Michigan Power Co
Indiana Michigan Power Co operates 13 power plants in the 2025 EIA-860 data, with 4,943 MW of nameplate capacity, the 52nd-largest fleet among the 5,826 operators on file. They are spread over two states: Indiana and Michigan. Coal is 53% of the capacity; the largest site is Rockport. Its oldest working unit dates from 1913, at Elkhart. Units added from 2020 to 2025 total 20 MW.
- Coal2,600 MW53%
- Nuclear2,285 MW46%
- Solar34.7 MW0.7%
- Hydroelectric22.6 MW0.5%
Capacity by decade it came online
NuclearCoalHydroelectricSolar
Above the line: capacity operating in 2025. Below: capacity retired at these plants.
Plants
| Plant | State | Runs on | Capacity | First unit |
|---|---|---|---|---|
| Rockport | Indiana | Coal | 2,600 MW | 1984 |
| Donald C Cook | Michigan | Nuclear | 2,285 MW | 1975 |
| St. Joseph Solar | Indiana | Solar | 20 MW | 2021 |
| Berrien Springs | Michigan | Hydroelectric | 7.2 MW | 1996 |
| OlivePV | Indiana | Solar | 5 MW | 2016 |
| Twin Branch | Indiana | Hydroelectric | 4.8 MW | 1989 |
| Watervliet PV | Michigan | Solar | 4.6 MW | 2016 |
| Buchanan (MI) | Michigan | Hydroelectric | 4.4 MW | 1919 |
| Elkhart | Indiana | Hydroelectric | 3.4 MW | 1913 |
| Twin Branch PV | Indiana | Solar | 2.6 MW | 2016 |
| Deer Creek PV | Indiana | Solar | 2.5 MW | 2016 |
| Mottville | Michigan | Hydroelectric | 1.6 MW | 1923 |
| Constantine | Michigan | Hydroelectric | 1.2 MW | 1923 |