This is a list of electricity-generating power stations in the U.S. state of Montana, sorted by type and name. In 2023, Montana had a total summer capacity of 6,698 MW through all of its power plants, and a net generation of 26,895 GWh. In 2024, the electrical energy generation mix was 37% coal, 32.7% hydroelectric, 22.2% wind, 4.2% natural gas, 1.5% petroleum, 1.4% solar, 0.1% biomass, and 1% other. Small-scale solar, including customer-owned photovoltaic panels, delivered and additional 107 GWh to the state's electrical grid in 2024.
During 2019, Montana exported about one-half of the electricity generated by its power plants to other states. Montana has the largest recoverable deposits of coal in the nation, accounting for 30% of U.S. reserves. In recent years three-quarters of the coal mined in Montana has been exported, with over one-third going to Asia via western Canada.
Montana had no utility-scale plants that used fissile material as a fuel in 2022.
Data from the U.S. Energy Information Administration serves as a general reference.
A useful map of coal generation plants is provided by the Sierra Club.
The Hardin facility was mostly idle and is re-ramping to service cryptocurrency mining.
Formerly Mill Creek Generating Station
Data from the U.S. Energy Information Administration serves as a general reference.
Additional Montana hydroelectric general references:
Formerly Mud Springs Wind
Montana had no utility-scale storage power stations in 2019. A proposed facility is the 400MW/1300MWh Gordon Butte Pumped Storage Project.