How many power plants does Indiana Michigan Power operate?

EIA-860M lists 13 operating plants against “Indiana Michigan Power Co” for 2026-07, totalling 5 GW of nameplate capacity in 2 states.

Is Indiana Michigan Power the owner of these plants?

EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.

Why are affiliates listed separately?

Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.

Indiana Michigan Power plants

Every generating plant EIA-860M files against Indiana Michigan Power for 2026-07: 13 plants, 5 GW of nameplate capacity, across 2 states and 4 energy sources.

EIA files this entity as “Indiana Michigan Power Co”.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 13
Nameplate capacity: 5 GW
States: 2; IN, MI
Energy sources: 4

Indiana Michigan Power plants by energy source

Coal1 plants · 2,600 MW
Hydro6 plants · 23 MW
Nuclear1 plants · 2,285 MW
Solar5 plants · 35 MW

Full list of Indiana Michigan Power plants

Power plants operated by Indiana Michigan Power Co

RockportConventional Steam Coal	Indiana Michigan Power Co	Spencer	2,600	2	1984	Operating
Donald C CookNuclear	Indiana Michigan Power Co	Berrien	2,285.3	2	1975	Operating
St. Joseph SolarSolar Photovoltaic	Indiana Michigan Power Co	St Joseph	20	1	2021	Operating
Berrien SpringsConventional Hydroelectric	Indiana Michigan Power Co	Berrien	7.2	12	1996	Operating
OlivePVSolar Photovoltaic	Indiana Michigan Power Co	St Joseph	5	1	2016	Operating
Twin BranchConventional Hydroelectric	Indiana Michigan Power Co	St Joseph	4.8	8	1989	Operating
Watervliet PVSolar Photovoltaic	Indiana Michigan Power Co	Berrien	4.6	1	2016	Operating
Buchanan (MI)Conventional Hydroelectric	Indiana Michigan Power Co	Berrien	4.4	10	1919	Operating
ElkhartConventional Hydroelectric	Indiana Michigan Power Co	Elkhart	3.4	3	1913	Operating
Twin Branch PVSolar Photovoltaic	Indiana Michigan Power Co	St Joseph	2.6	1	2016	Operating
Deer Creek PVSolar Photovoltaic	Indiana Michigan Power Co	Grant	2.5	1	2016	Operating
MottvilleConventional Hydroelectric	Indiana Michigan Power Co	St Joseph	1.6	4	1923	Operating
ConstantineConventional Hydroelectric	Indiana Michigan Power Co	St Joseph	1.2	4	1923	Operating

Indiana Michigan Power: FAQ

How many power plants does Indiana Michigan Power operate?: EIA-860M lists 13 operating plants against “Indiana Michigan Power Co” for 2026-07, totalling 5 GW of nameplate capacity in 2 states.
Is Indiana Michigan Power the owner of these plants?: EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
Why are affiliates listed separately?: Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.