# NorthWestern Energy

> NorthWestern Energy is a regulated electricity and natural gas company serving approximately 850,300 customer accounts across Montana, South Dakota, Nebraska and Yellowstone National Park at year-end 2025. Its business combines generation, transmission, distribution and natural gas infrastructure, with a strategy focused on owning dependable supply and investing in its regional networks.

- **Founded:** 1923
- **Headquarters:** Sioux Falls, United States
- **Products:** Electric utility service, Natural gas utility service, My Energy Account, Outage reporting and tracking, Energy efficiency programs
- **Notable:** Completed a roughly $904 million Montana hydro acquisition in 2014., Celebrated 100 years of Nebraska and South Dakota service in 2023., Brought Yellowstone County Generating Station into commercial operation on October 25, 2024, according to its 2026 resource plan.

## Products & services

- **Electric utility service** — Generation, transmission and distribution serving Montana, South Dakota and Yellowstone National Park.
- **Natural gas utility service** — Natural gas production, storage, transportation and distribution serving Montana, South Dakota and Nebraska.
- **My Energy Account** — Online billing, account management and energy-use tools.
- **Outage reporting and tracking** — Online tools for reporting and monitoring electric service interruptions.
- **Energy efficiency programs** — Residential and commercial efficiency resources; Montana offerings include qualifying rebates and virtual Home EnergyCheck assessments. Eligibility varies.
- **Proposed Green Power Program** — September 2026 application for voluntary subscriptions supporting a new Montana renewable resource; requires regulatory approval and sufficient commitments.

## Achievements

- Completed a roughly $904 million Montana hydro acquisition in 2014.
- Celebrated 100 years of Nebraska and South Dakota service in 2023.
- Brought Yellowstone County Generating Station into commercial operation on October 25, 2024, according to its 2026 resource plan.
- Increased ownership of Colstrip Units 3 and 4 to 55% effective January 1, 2026.

## Latest updates

- **2026-10** — October 23 reporting said Montana commissioners were scheduled to consider the Black Hills merger October 27; it had not yet received final Montana approval as of this profile’s October 24 research cutoff.
- **2026-09** — Filed the proposed Green Power Program jointly with Missoula, Missoula County and Bozeman on September 15.
- **2026-06** — South Dakota regulators approved the proposed Black Hills merger, following federal and Nebraska approvals in May.
- **2026-02** — Reported $181.1 million of 2025 net income and announced a $3.2 billion five-year capital plan.
- **2026-01** — Acquired 592 MW of additional Colstrip ownership without a purchase payment.

## Links

- Website: https://northwesternenergy.com
- LinkedIn: https://www.linkedin.com/company/northwesternenergy
- Twitter/X: https://twitter.com/NWEinfo
- YouTube: https://www.youtube.com/northwesternenergy
- Instagram: https://www.instagram.com/northwesternenergy/
- Facebook: https://www.facebook.com/NorthWesternEnergy

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Profile page: https://yespress.io/northwestern-energy
Published by YesPress — https://yespress.io
Last updated: 2026-10-24