Powerful History
Powerful History
Celebrating Our Centennial

Celebrating Our Centennial
In 2023, we are celebrating the centennial of Northwestern Public Service, the company that transformed into NorthWestern Energy. In 1923, two utilities in Nebraska and two in South Dakota merged to form the Northwestern Public Service Company. Northwestern Public Service grew alongside the communities it served, electrifying the prairies of South Dakota and providing natural gas to homes and businesses in both South Dakota and Nebraska.
In 2012, we celebrated Montana Power’s centennial. The Montana Power Company was founded in 1912 through the merger of several regional energy companies. In 2002, NorthWestern Corporation purchased the Montana Power Company’s transmission and distribution system, forming NorthWestern Energy. In the years since, the combination of two proud energy companies has formed one large family.
As we look back over the last 100 years, much has changed at NorthWestern Energy, but many things have not changed. For more than 100 years, NorthWestern Energy has been committed to our three pillars of our strategy: reliability, affordability and sustainability. Our commitment to these pillars has been unwavering during the last 100 years and will continue to be in the next 100 years.
Showcasing Our Powerful History

Showcasing Our Powerful History
We are thrilled to reveal the stunning transformation of the Warren Lotsberg NorthWestern Energy Freedom Stage at the South Dakota State Fair, made possible by the talented team at NorthWestern Energy Creative Services. Their vision and hard work have brought a fresh and vibrant look to the iconic stage.
But this transformation is more than just a visual upgrade; it carries a powerful tie to our history. As we embarked on the redesign, we couldn't help but reflect on the last 100 years of our company's journey and the people who have made it possible.
HISTORY AT A GLANCE
Delivering a Bright Future
For more than 100 years, NorthWestern Energy has been committed to delivering safe, reliable and innovative energy solutions. And we won't stop working until the future is as bright as it can be.