Address: 2840 E. Yellowstone Highway Casper, WY 82609 View Map

About Us

At your service for 100 years

At Rocky Mountain Power we believe in our promise of public service: an obligation to deliver safe, reliable electricity at an affordable price in an environmentally sustainable way. Through our commitment to developing renewable resources, providing excellent customer service, managing our available resources and encouraging energy-saving practices – we believe we can meet this promise.

Based in Salt Lake City, Utah, we provide electric service to 1 million customers in Idaho, Utah and Wyoming. As part of PacifiCorp, we are one of the lowest-cost electricity providers in the United States, with 1.8 million customers in six western states.

Our company and our employees are committed to the communities we serve, providing valuable contributions in economic and community development, as well as social needs.

As we move into our second century of service, we’ll continue to look for more ways to operate efficiently and responsibly.

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Our company dates back to 1881, when Salt Lake City became the fifth city in the world to have central station electricity. Utah Power & Light (UP&L) was formed in 1912 from several small electric companies in Utah, Idaho and western Colorado.