Portland General Electric Company, an integrated electric utility company, engages in the generation, wholesale purchase, transmission, distribution, and retail sale of electricity in the state of Oregon. It operates six thermal plants, three wind farms, and seven hydroelectric facilities. As of December 31, 2021, the company owned an electric transmission system consisting of 1,274 circuit miles, including 287 circuit miles of 500 kilovolt line, 415 circuit miles of 230 kilovolt line, and 572 miles of 115 kilovolt line. It has 28,206 circuit miles of distribution lines. The company also purchases and sells wholesale natural gas in the United States and Canada. It serves approximately 917 thousand residential, commercial, and industrial customers in 51 cities. The company was founded in 1889 and is headquartered in Portland, Oregon.