Cleanview

Coal power plants in Montana

Montana has 4 operating coal power plants with 1.8 GW of capacity.

  • Operating4
BillingsMissoulaGreat FallsBozeman

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

The largest coal power plants in Montana

Operating, by capacity

#Coal power plantYear onlineCapacity
1Colstrip19861,647 MW
2Hardin Generator Project2006116 MW
3Colstrip Energy LP199046 MW
4Western Sugar Cooperative - Billings20112 MW

Coal power plants that came online most recently in Montana

Newest first

#Coal power plantYear onlineCapacity
1Western Sugar Cooperative - Billings20112 MW
2Hardin Generator Project2006116 MW
3Colstrip Energy LP199046 MW
4Colstrip19861,647 MW
The developer behind each project is on paid plans. See plans

How Cleanview tracks coal power plants

Operating coal power plants come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about coal power plants in Montana

How many coal power plants are in Montana?
Montana has 4 operating utility-scale coal power plants with 1.8 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest coal power plant in Montana?
Colstrip in Rosebud County, Montana is the largest, at 1,647 MW. It came online in 1986.
How many coal power plants were built in Montana in 2025?
0 coal power plants came online in Montana in 2025, with 0 MW of capacity.
Who is developing coal power plants in Montana?
Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

More energy trackers for Montana

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