Where Does Your Energy Come From?

Our electric portfolio includes a balanced mix of safe, reliable, affordable and clean energy.
At NorthWestern Energy, our goal is to provide our customers reliable energy at the lowest long-term cost. We do this through a balanced mix of safe, reliable, affordable and clean energy. Our electric portfolio is built on the carbon-free hydro system, along with wind, coal, gas and solar. Wind and solar are variable energy resources, meaning they don’t produce power if the wind isn’t blowing or the sun isn’t shining. Coal and natural gas, or thermals, are reliable and resilient energy sources that can start up quickly whenever we need them. This mix of renewable and traditional resources help us keep energy bills as affordable and predictable as possible.

Our Electric Generation Portfolio

Our Electric Generation Portfolio

In 2020, 65% of our electric generation was from carbon-free resources, compared to 39.5% of megawatt hours generated by the U.S. electric power industry.

Our Montana Electric Generation Portfolio

Our Montana Electric Generation Portfolio

Our 100% clean hydro system is the backbone of our electric generation in Montana. We own 10 hydroelectric generating facilities in Montana, which supplied 40% of our electric generation in 2020. Wind and solar bring us to nearly 70% carbon-free generation.

Our South Dakota Electric Generation Portfolio

Our South Dakota Electric Generation Portfolio

Nearly half of our electricity for our South Dakota customers comes from wind resources.