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.

We own and operate 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

A map showing NorthWestern Energy's service territory in Montana, Nebraska and South Dakota.

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. It is not just a matter of good environmental practices, being a sustainable enterprise must also incorporate social and governance best practices.

Our vision

Enriching lives through a safe sustainable energy future.

Our mission

Working together to provide safe, reliable and innovative energy solutions that create value for customers, communities, employees, and investors.

Our values

SERVICE: Safety, Excellence, Respect, Value, Integrity, Community, Environment

Our Natural Gas and Electric Service

NorthWestern Energy serves 337 communities in Montana, South Dakota and Yellowstone National Park with safe and reliable electricity. We serve natural gas to 202 communities in Montana, South Dakota and Nebraska.

Our Hydro Facilities

Our carbon-free hydro system is the foundation of our energy generation portfolio in Montana. In 2023, 35.7% of our electricity for Montana customers came from our hydro facilities.

Giving Back to Our Communities

NorthWestern Energy is committed to being a good corporate citizen of all the communities we serve. In 2023, we gave nearly $2 million in charitable donations and community support.

Delivering a Bright Future

Employee Noel Jacobson wears a hard hat and smiles in Power Park.

Delivering a Bright Future

We won't stop working until the future is as bright as it can be.

Where Does Your Energy Come From?

We provide safe, reliable energy through a balanced mix of clean energy and traditional resources.
Madison Dam flowline

Public access at Madison Dam temporarily closed for safety

Date: Jun 2, 2022

TYPE: News

Butte, Mont. –  June 2, 2022– Effective immediately, Ennis Lake Road is closed downstream of Madison Dam for repairs. The road will reopen in the morning on Sunday, June 5.

Heavy rainfall on Memorial Day weekend created conditions that caused a large rock to fall Monday, May 30 on the flow line from the dam, causing damage to the flow line and the road.

Water is leaking from the flow line and across Ennis Lake Road. Heavy equipment, including a large crane, is required to repair the flow line and public access is closed for safety.

NorthWestern Energy appreciates the cooperation of recreationists as we work to make repairs and reopen the area as quickly as possible.

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About NorthWestern Energy (Nasdaq: NWE)

NorthWestern Corporation, doing business as 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 are working to deliver safe, reliable, and innovative energy solutions that create value for customers, communities, employees, and investors. This includes bridging our history as a regulated utility safely providing low-cost and reliable service with our future as a globally-aware company offering a broader array of services performed by highly-adaptable and skilled employees. We provide electricity and / or natural gas to approximately 753,600 customers in Montana, South Dakota, Nebraska and Yellowstone National Park. We have provided service in South Dakota and Nebraska since 1923 and in Montana since 2002. More information is available on the company's Web site at www.northwesternenergy.com.


Media Contacts:

Jo Dee Black

866-622-8081

jodee.black@northwestern.com