Where Does Your Energy Come From?
Our Clean Energy Portfolio
Our Electric Generation Portfolio

Our Electric Generation Portfolio
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 32% of our electric generation in 2022. Wind and solar bring us to nearly 60% 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.
Contracted energy from Colstrip Energy Limited Partners (CELP), Yellowstone Energy Limited Partners (YELP) as well as a majority of the contracted wind, hydro and solar are federally mandated Qualifying Facilities, as defined under the Public Utility Regulatory Policies Act of 1978 (PURPA).
NorthWestern does not own all the renewable energy certificates (RECs) generated by contracted resources, and periodically sells its own RECs with proceeds benefiting retail customers. Accordingly, we cannot represent that 100% of carbon-free energy in the portfolio was delivered to our customers.