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PacifiCorp is an electric power company in the northwestern United States. PacifiCorp has three primary subsidiaries: # Pacific Power is a regulated electric utility with service territory throughout Oregon, northern California, and southeastern Washington. # Rocky Mountain Power is a regulated electric utility with service territory throughout Utah, Wyoming, and southeastern Idaho. # PacifiCorp Energy operates 69 generation facilities in the six states that Pacific Power and Rocky Mountain Power operate in, plus two facilities in Montana, three in Colorado, and one in Arizona. 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 and PacifiCorp Energy are headquartered in Salt Lake City, Utah. Pacific Power and Rocky Mountain Power combined serve over 1.4 million residential customers, 202,000 commercial customers, and 34,000 industrial and irrigation customers - for a total of approximately 1,668,000 customers. The service area is . Pacific Power and Rocky Mountain Power own and maintain of long distance transmission lines, of overhead distribution lines, of underground 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.〔Rio Tinto timeline, http://www.riotinto.com/whoweare/timeline.asp〕 ==Organization== PacifiCorp was formed in 1910 from the merger of several small electric companies in eastern Oregon and Washington to form the Pacific Power & Light Company. It gradually expanded its reach to include most of Oregon, as well as portions of California, Washington and Wyoming. In 1984, it reorganized itself as a holding company, PacifiCorp, headquartered in Portland with Pacific Power as its main subsidiary. In 1987, PacifiCorp acquired Utah Power & Light. Headquartered in Salt Lake City, Utah Power had been formed in 1912 from the merger of four electric companies in Utah, Idaho and Wyoming. In 1881, one of those companies made Salt Lake City the fifth city in the world with central station electricity. After the merger, Pacific Power and Utah Power operated as divisions of PacifiCorp. In a July 2006 reorganization, Pacific Power's territory in central and eastern Wyoming was merged with the Utah Power territory to form Rocky Mountain Power.〔''Electrical Development in Utah,'' http://www.media.utah.edu/UHE/e/ELECTRICAL.html〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PacifiCorp」の詳細全文を読む スポンサード リンク
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