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

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 318 communities in Montana, South Dakota and Yellowstone National Park with safe and reliable electricity. We serve natural gas to 183 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 2021, 33% 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 2021, we gave $1.8 million in charitable donations and community support.

We Are NorthWestern Energy

We Are NorthWestern Energy

We are committed to making energy more dependable and affordable. We are unwavering in our dedication to create a future that is undeniably, and reliably, bright.

Where Does Your Energy Come From?

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

NorthWestern Energy joins the Western Energy Imbalance Market

Date: Jun 25, 2021

TYPE: News

Category: Investors

Butte, Mont. – June 25, 2021 – NorthWestern Energy is now participating in the Western Energy Imbalance Market, operated by California Independent System Operator. The Western EIM is a real-time, within-hour energy market serving 10 states. Since its launch in 2014, the Western EIM has been using advanced technology to find and deliver the lowest-cost energy to utilities.

NorthWestern Energy’s participation in the Western Energy Imbalance Market will provide the company’s Montana customers with economically efficient energy to resolve imbalances and variations in load and generation on our Montana system.

This achievement is the result of more than two and half years of preparation, data analysis and technology integration with NorthWestern Energy’s system by NorthWestern Energy personnel. The last 18 months were complicated by safety precautions during the COVID-19 pandemic.

“We appreciate the flexibility of our team, including new team members hired in the past 18 months, and the assistance and guidance of the CAISO staff, which made this milestone possible,” said NorthWestern Energy Vice President Transmission Mike Cashell. “This represents a significant change in the way we balance the system using advanced tools.”

NorthWestern Energy is now a member of the Southwest Power Pool Regional Transmission Organization for its South Dakota electric operations and the California Independent System Operator Western EIM for its Montana electric operations.

“NorthWestern Energy supports an incremental approach to energy markets in the West and has pursued the Western EIM because clear benefits exist for our customers,” said NorthWestern Energy Vice President Supply/Montana Government Affairs John Hines. “Participating in the Western EIM will provide our customers access to cost effective energy and a market for our excess energy from intermittent generation sources when it is not required to serve our customers.”

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About NorthWestern Energy (Nasdaq: NWE)

NorthWestern provides electricity and / or natural gas to approximately 743,000 customers in Montana, South Dakota, and Nebraska. We have generated and distributed electricity in South Dakota and distributed natural gas in South Dakota and Nebraska since 1923 and have generated and distributed electricity and distributed natural gas in Montana since 2002. More information on NorthWestern is available on the company’s website at www.northwesternenergy.com.

Media Contacts:
Jo Dee Black
866-622-8081
jodee.black@northwestern.com