IDACORP, Inc., through its subsidiary, Idaho Power Company, engages in the generation, transmission, distribution, purchase, and sale of electric energy in the United States. It operates 17 hydroelectric generating plants located in southern Idaho and eastern Oregon, as well as 3 natural gas-fired plants in southern Idaho; and owns interests in 3 coal-fired steam electric generating plants located in Wyoming, Nevada, and Oregon. As of December 31, 2014, the company provided electric service to approximately 516,000 general business customers; and had a network of approximately 4,858 pole-miles of high-voltage transmission lines, 24 step-up transmission substations located at power plants, 24 transmission substations, 10 switching stations, 222 energized distribution substations, and approximately 27,072 pole-miles of distribution lines. Its principal commercial and industrial customers are involved in food processing and refining, electronics and general manufacturing, agriculture, health care, and winter recreation. The company, through its other subsidiaries, invests in housing and other real estate investments. IDACORP, Inc. was founded in 1915 and is headquartered in Boise, Idaho.