Our Natural Gas and Electric Service
NorthWestern Energy serves communities in Montana, South Dakota and Yellowstone National Park with safe and reliable electricity. We serve natural gas to communities in Montana, South Dakota and Nebraska.
Our Company
For more than 100 years, NorthWestern Energy has been committed to delivering safe, reliable and innovative energy solutions.
We serve gas and electric to customers in the western two-thirds of Montana and eastern South Dakota. We also have gas service in Nebraska and serve electricity to Yellowstone National Park.
NorthWestern owns and operates a diverse generation fleet of wind, water, natural gas and coal-fired resources and the high-voltage electric transmission system and distribution system. We also own and operate natural gas production, transmission and distribution systems.
We serve gas and electric to customers in the western two-thirds of Montana and eastern South Dakota. We also have gas service in Nebraska and serve electricity to Yellowstone National Park.
NorthWestern owns and operates a diverse generation fleet of wind, water, natural gas and coal-fired resources and the high-voltage electric transmission system and distribution system. We also own and operate natural gas production, transmission and distribution systems.
Enriching Lives Through a Safe, Sustainable Energy Future
Enriching Lives Through a Safe, Sustainable Energy Future
NorthWestern Energy has provided reliable and affordable electricity and natural gas to customers in Montana, South Dakota and Nebraska for more than 100 years.
Our Commitment to Sustainability
Sustainability means meeting today’s needs while planning for tomorrow’s as well.
NorthWestern Energy at a glance
850,300
customers served across Montana, South Dakota, Nebraska and Yellowstone National Park
1,667
employees working across our service territory
52%
carbon-free electric generation
Our vision
Enriching lives through a safe and sustainable energy future.
Our mission
Working together to deliver safe, reliable and affordable energy.
Our values
SERVICE: Safety, Excellence, Respect, Value, Integrity, Community, Environment
Our Hydro Facilities
Our carbon-free hydro system is the foundation of our energy generation portfolio in Montana.
Giving Back to Our Communities
NorthWestern Energy is committed to being a good corporate citizen of all the communities we serve.
Where Does Your Energy Come From?
We provide safe, reliable energy through a balanced mix of clean energy and traditional resources.
NorthWestern Energy to Upgrade Natural Gas Pipeline on 5th Street in Great Falls
Date: Apr 7, 2026
TYPE: News
Great Falls, Mont. – April 7, 2026 – NorthWestern Energy will begin replacing a natural gas pipeline installed in 1949 along 5th Street in Great Falls, Mont. from 2nd Avenue North to 2nd Avenue South. Construction is scheduled to begin April 8 and is part of ongoing efforts to improve the safety and reliability of natural gas service in the area. The project is expected to be completed about June 8.
The project also includes replacement of a natural gas main pipeline located in the alley along the project route.
For the safety of work crews and the public, traffic will be detoured away from the work area during construction. Drivers and pedestrians are asked to watch for posted signs and barricades.
Customers who will experience brief, temporary interruptions of natural gas service will be notified directly by NorthWestern Energy.
“We appreciate the patience and cooperation of our customers and the community as we complete this important infrastructure improvement,” said NorthWestern Energy Community Relations Manager Shane Etzwiler “This investment will help ensure reliable natural gas service for years to come.”
NorthWestern Energy will work to minimize disruptions and complete the project as efficiently as possible. Schedules may change depending on weather or other conditions.
For more information or if you have questions, contact NorthWestern Energy Community Relations Manager Shane Etzwiler, shane.etzwiler@northwestern.com, 406-454-7169.
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NorthWestern Energy - Delivering a Bright Future
NorthWestern Energy, provides essential energy infrastructure and valuable services that enrich lives and empower communities while serving as long-term partners to our customers and communities. We work to deliver safe, reliable, and innovative energy solutions that create value for customers, communities, employees, and investors. We do this by providing low-cost and reliable service performed by highly-adaptable and skilled employees. We provide electricity and / or natural gas to approximately 850,300 customers in Montana, South Dakota, Nebraska, and Yellowstone National Park. Our operations in Montana and Yellowstone National Park are conducted through our subsidiary, NW Corp, and our operations in South Dakota and Nebraska are conducted through our subsidiary, NWE Public Service. We have provided service in South Dakota and Nebraska since 1923 and in Montana since 2002.
Media Contacts:
Jo Dee Black
866-622-8081