Rocky Mountain Power services much of Utah, including Salt Lake City, Ivins, Blanding, Currant Creek and Ogden. As of 2014 the company claims to have 835,232 customers in Utah.
The Wasatch Front service area is one of Rocky Mountain Power's service areas and runs roughly from Ogden in the northern part of the state to Provo in the south and from Tooele in the west to Park City in the east. It covers Salt Lake City and many other localities.
In the southern part of Utah, Rocky Mountain Power areas include La Verkin and Cedar City. In the far north, areas include Smithfield and Tremonton. The company has thermal plants in three Utah localities and gas-fueled thermal plants in four areas, including two in Lakeside. It has a mining site and a geothermal plant in other areas of Utah. The headquarters of Rocky Mountain Power is in Salt Lake City.
Rocky Mountain Power is part of PacifiCorp and also serves Idaho with 73,871 customers and Wyoming with 138,868 customers. Its roots start in 1881, when Salt Lake City was the fifth city worldwide to gain central station electricity. In 1921, other smaller companies in Utah, Idaho and Colorado combined to form Utah Power & Light.