How many power plants does Montana-Dakota Utilities operate?

EIA-860M lists 7 operating plants against “Montana-Dakota Utilities Co” for 2026-07, totalling 509 MW of nameplate capacity in 2 states.

Is Montana-Dakota Utilities 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.

Montana-Dakota Utilities power plants

Every generating plant EIA-860M files against Montana-Dakota Utilities for 2026-07: 7 plants, 509 MW of nameplate capacity, across 2 states and 2 energy sources.

EIA files this entity as “Montana-Dakota Utilities 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: 7
Nameplate capacity: 509 MW
States: 2; MT, ND
Energy sources: 2

Montana-Dakota Utilities plants by energy source

Natural gas4 plants · 304 MW
Wind3 plants · 205 MW

Full list of Montana-Dakota Utilities power plants

Power plants operated by Montana-Dakota Utilities Co

R M Heskett2 technologies	Montana-Dakota Utilities Co	Morton	178.4	3	2014	Operating
Thunder Spirit Wind, LLCOnshore Wind Turbine	Montana-Dakota Utilities Co	Adams	155.5	2	2015	Operating
Glendive GTNatural Gas Fired Combustion Turbine	Montana-Dakota Utilities Co	Dawson	83.7	2	1979	Operating
Diamond Willow Wind FacilityOnshore Wind Turbine	Montana-Dakota Utilities Co	Fallon	30	1	2007	Operating
Miles City GTNatural Gas Fired Combustion Turbine	Montana-Dakota Utilities Co	Custer	23.3	1	1972	Operating
Cedar Hills Wind FarmOnshore Wind Turbine	Montana-Dakota Utilities Co	Bowman	19.5	1	2010	Operating
Lewis & ClarkNatural Gas Internal Combustion Engine	Montana-Dakota Utilities Co	Richland	18.6	2	2016	Operating

Montana-Dakota Utilities: FAQ

How many power plants does Montana-Dakota Utilities operate?: EIA-860M lists 7 operating plants against “Montana-Dakota Utilities Co” for 2026-07, totalling 509 MW of nameplate capacity in 2 states.
Is Montana-Dakota Utilities 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.