Our Natural Gas and Electric Service
NorthWestern Energy serves 341 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 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
787,000
customers served across Montana, South Dakota, Nebraska and Yellowstone National Park
1,585
employees working across our service territory
58%
carbon-free electric generation
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 Hydro Facilities
Our carbon-free hydro system is the foundation of our energy generation portfolio in Montana. In 2024, nearly 34% 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 2024, we gave $2.3 million in charitable donations and community support.
Where Does Your Energy Come From?
We provide safe, reliable energy through a balanced mix of clean energy and traditional resources.
NorthWestern Energy Urges Customers to Stay Safe as Snow and Strong Winds Approach Eastern South Dakota
Date: Dec 17, 2025
TYPE: News
Sioux Falls, S.D. – Dec. 17, 2025 – The U.S. Weather Service in Aberdeen forecasts snow and strong winds moving into Eastern South Dakota. NorthWestern Energy reminds customers to stay safe and prepared before, during, and after the storm.
NorthWestern Energy is prepared with staffing and equipment to respond as quickly and safely as possible to any outages caused by the storm.
Before the Storm: Prepare Now
- Charge devices: Make sure cell phones and other essential electronics are fully charged.
- Gather supplies: Stock up on water, non-perishable food, flashlights, batteries, and necessary medications.
- Check emergency kits: Include blankets, first-aid supplies, and items for pets.
More tips: https://www.northwesternenergy.com/safety/outage-safety/before-the-storm
During the Storm: Stay Safe
- Stay indoors: Avoid going outside during high winds and icy conditions.
- Report outages: Use NorthWestern Energy’s outage reporting tools online or by phone.
- Avoid downed lines: Treat all downed power lines as live and dangerous. Stay far away and report immediately.
More tips: https://www.northwesternenergy.com/safety/outage-safety/during-the-storm
After the Storm: Exercise Caution
Inspect surroundings: Watch for downed lines, damaged poles, and debris before venturing outside.
More tips: https://www.northwesternenergy.com/safety/outage-safety/after-the-storm
Stay connected:
For outage updates and safety information, visit https://www.northwesternenergy.com.
For the latest weather alerts and forecasts, visit the U.S. Weather Service Aberdeen at https://www.weather.gov/abr
Follow us on Facebook and LinkedIn and Instagram: @NorthWesternEnergy
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 842,100 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