Portland General Electric (PGE) functions as a fully integrated electric utility, overseeing the generation, wholesale procurement, transmission, distribution, and direct retail sale of electricity throughout Oregon. Its power generation assets include seven hydroelectric facilities, three wind farms, and six thermal plants. As of December 31, 2021, PGE's electric transmission system covered 1,274 circuit miles, which notably comprised 287 miles of 500 kilovolt lines, 415 miles of 230 kilovolt lines, and 572 miles of 115 kilovolt lines.