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, 2022, the company owned an electric transmission system consisting of 1,255 circuit miles, including 269 circuit miles of 500 kilovolt line, 413 circuit miles of 230 kilovolt line, and 573 miles of 115 kilovolt line; and served 926 thousand retail customers in 51 cities. It also has 28,481 circuit miles of distribution lines. The company was founded in 1889 and is headquartered in Portland, Oregon.