AEP vs PNW

American Electric Power Company Inc.

American Electric Power Company, Inc., an electric public utility holding company, engages in the generation, transmission, and distribution of electricity for sale to retail and wholesale customers in the United States. It operates through Vertically Integrated Utilities, Transmission and Distribution Utilities, AEP Transmission Holdco, and Generation & Marketing segments. The company generates electricity using coal and lignite, natural gas, nuclear, and hydroelectric, as well as solar, wind, and other energy sources. It also supplies and markets electric power at wholesale to other electric utility companies, rural electric cooperatives, municipalities, and other market participants. The company owns, leases, or controls approximately 3,016 railcars, 411 barges, 6 towboats, and a coal handling terminal with approximately 18 million tons of annual capacity. American Electric Power Company, Inc. was incorporated in 1906 and is headquartered in Columbus, Ohio.

Pinnacle West Capital Corporation

Pinnacle West Capital Corporation, through its subsidiary, Arizona Public Service Company, provides retail and wholesale electric services primarily in the state of Arizona. The company engages in the generation, transmission, and distribution of electricity using coal, nuclear, gas, oil, and solar generating facilities. Its transmission facilities include approximately 5,728 pole miles of overhead lines and approximately 74 miles of underground lines; and distribution facilities comprise approximately 11,225 miles of overhead lines and approximately 22,453 miles of underground primary cable, as well as owns and maintains 80 transmission substations and 443 distribution substations. The company also owns or leases approximately 6,321 megawatts of regulated generation capacity. It serves approximately 1.3 million customers. The company was incorporated in 1985 and is headquartered in Phoenix, Arizona.