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.
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NorthWestern Energy announces agreement to acquire Energy West Montana

Date: Jul 30, 2024

Butte, Mont. – July 30, 2024 –NorthWestern Energy announces it has entered into a definitive agreement to acquire Energy West Montana from Hope Utilities for $39 million. The proposed transaction will be reviewed and is subject to approval by the Montana Public Service Commission.

Energy West has provided energy service to Montanans since it began as the Great Falls Gas Co. in 1909. The Energy West operations are located in Great Falls, Cut Bank, Cascade and West Yellowstone.

 “This is an opportunity for growth in our natural gas business in Montana by purchasing existing infrastructure built for Montanans and operated by a dedicated Montana team,” said NorthWestern Energy President and CEO Brian Bird. “We are excited about the opportunity to serve Energy West’s 33,000 customers across Great Falls, Cut Bank, Cascade and West Yellowstone. By integrating Energy West’s Montana operations, we believe customers, employees and communities will be well served as a part of our commitment to Montana and to delivering safe and reliable energy.”

Upon closing of the transaction, which is expected to occur in the first quarter of 2025, Energy West Montana’s employees will become NorthWestern Energy employees.

Energy West customers will remain Energy West customers until the sale closes and will transition to customers of NorthWestern Energy upon closing, with current Energy West rates remaining in effect after the transaction is complete.

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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 764,200 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.

Media Contacts:

Jo Dee Black

866-622-8081

jodee.black@northwestern.com