Power plants in Flathead County, Montana

4 operating power plants in Flathead County, Montana, with 438 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

4

Nameplate capacity

438 MW

Net generation, 2025

696 GWh

Largest

Hungry Horse

428 MW

Largest power plants in Flathead County

#PlantMW2025 net generation, GWhGWh, 2025Capacity factorOperator
1Hungry HorseHydro42863316.9%U S Bureau of Reclamation
2Big ForkHydro4.124.668.4%PacifiCorp
3Flathead Landfill to Gas Energy FacilityLandfill gas3.217.161.1%Flathead Electric Coop Inc
4Stoltze CoGen1Wood biomass2.821.085.5%F H Stoltze Land & Lumber Co

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

More power plant lists for Montana

Other counties in Montana