IDACORP, Inc., through its subsidiary, Idaho Power Company, engages in the generation, transmission, distribution, sale, and purchase of electric energy in the United States. It owns and operates 17 hydroelectric generating plants located in southern Idaho and eastern Oregon, as well as 3 natural gas-fired plants situated in southern Idaho; and owns interests in 3 coal-fired steam electric generating plants located in Wyoming, Nevada, and Oregon. As of December 31, 2012, the company provided electric service to approximately 501,000 general business customers; and had a network of approximately 4,851 pole miles of high-voltage transmission lines, 24 step-up transmission substations located at power plants, 24 transmission substations, 10 switching stations, 228 energized distribution substations, and approximately 26,764 pole miles of distribution lines. Its principal commercial and industrial customers are involved in food processing, electronics and general manufacturing, agriculture, forest products, beet sugar refining, and winter recreation industries. The company, through its other subsidiaries, invests in housing and other real estate investments in the United States, Puerto Rico, and the United States Virgin Islands. IDACORP, Inc. was founded in 1915 and is headquartered in Boise, Idaho.