PacifiCorp is an electric power company in the western United States.
PacifiCorp has two business units:

Pacific Power, a regulated electric utility with service territory throughout Oregon, northern California, and southeastern Washington.
Rocky Mountain Power, a regulated electric utility with service territory throughout Utah, Wyoming, and southeastern Idaho.PacifiCorp operates one of the largest privately held transmission systems in the U.S. within the western Energy Imbalance Market.
In 2001, PacifiCorp was purchased by Scottish Power. Since 2006, PacifiCorp has been a wholly owned subsidiary of Berkshire Hathaway Energy (formerly MidAmerican), itself an affiliate of Berkshire Hathaway.
PacifiCorp is currently headquartered in the Lloyd Center Tower at 825 N.E. Multnomah Street, Portland, Oregon, in the Lloyd District. Pacific Power is also headquartered in the same building. Rocky Mountain Power is headquartered in Salt Lake City, Utah.
Pacific Power and Rocky Mountain Power combined serve over 1.6 million residential customers, 202,000 commercial customers, and 37,000 industrial and irrigation customers - for a total of approximately 1,813,000 customers. The service area is 143,000 square miles (370,000 km2). The company owns and maintain 16,500 miles (26,600 km) of long distance transmission lines, 64,000 miles (103,000 km) of distribution lines, and 900 substations.
In 1977, PacifiCorp spun off its coal mining interests into a mining company known as NERCO, which was eventually listed on the New York Stock Exchange and ranked as high as 353 on the Fortune 500 list of the largest American companies. Through its majority interest in NERCO, PacifiCorp was involved in the mining of coal, oil, natural gas, gold, silver, and uranium. PacifiCorp still owned 82% of NERCO in 1993, when it was acquired by the mining giant, the Rio Tinto Group.