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Learn more about our new corporate headquarters.

Photo of Horizon Point.

We’re committed to continuing to grow our company as we’ve done over the past 10 years and helping to grow the Rapid City community as we’ve done for more than 130 years. 

This new AC tech helps save energy and may help you sleep better

Thanks to a new technology, we no longer have to choose between cool temperatures and quiet nights. Learn more about this year’s ENERGY STAR Emerging Technology Award winner at

Looking for a career in energy?Join our mission.

Improving people’s lives is important work, not to be taken lightly. Think you've got what it takes? We're always looking for people to join our mission.


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