Power plants in Roosevelt County, Montana

3 operating power plants in Roosevelt County, Montana, with 168 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

Nameplate capacity

168 MW

Net generation, 2025

492 GWh

Largest

Culbertson Generation Station

108 MW

Largest power plants in Roosevelt County

#	Plant	MW	2025 net generation, GWhGWh, 2025	Capacity factor	Operator
1	Culbertson Generation StationNatural gas	108	231	24.4%	Basin Electric Power Coop
2	OREG 1 IncOther fuels	30	135	51.2%	Ormat Nevada Inc
3	OREG 2 IncOther fuels	30	126	48.1%	Ormat Nevada Inc

MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources

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Other counties in Montana

Cascade County8 plants · 321 MW Rosebud County5 plants · 2,262 MW Yellowstone County5 plants · 358 MW Flathead County4 plants · 438 MW Lewis and Clark County4 plants · 80 MW Stillwater County4 plants · 342 MW Wheatland County4 plants · 165 MW Big Horn County3 plants · 397 MW Teton County3 plants · 48 MW

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