Hydroelectric Facilities

42% of our electricity for our Montana customers comes from 100% clean hydroelectricity.

42% of our electricity for our Montana customers comes from 100% clean hydroelectricity.

Nearly 70% of the energy we supply in Montana comes from carbon-free sources, thanks in large part to our hydroelectric facilities. 42% of  our electricity for our Montana customers comes from 100% clean hydroelectricity.

Powering Generations

Powering Generations

NorthWestern Energy inherited the care of hydroelectric facilities that have powered the state of Montana for more than a hundred years. The upkeep and upgrade of these historic facilities will ensure future generations can continue to build on this proud tradition for a hundred more.

2021 Drought and Hebgen Reservoir Water Levels

The 2021 drought has led to challenging low water conditions in the Madison River system. These conditions are resulting in lower water levels at Hebgen reservoir to protect fisheries on the lower Madison River.

Where Does Your Energy Come From?

Nearly 70% of our Montana electric generation portfolio comes from clean energy. See where your energy is coming from in near real time.

Learn more about the environmental stewardship at our hydroelectric projects