PNW vs SO

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.

Southern Company

The Southern Company, through its subsidiaries, engages in the generation, transmission, and distribution of electricity. It operates in four segments: Gas Distribution Operations, Gas Pipeline Investments, Wholesale Gas Services, and Gas Marketing Services. The company also constructs, acquires, owns, and manages power generation assets, including renewable energy and battery energy storage projects and sells electricity in the wholesale market; and distributes natural gas in Illinois, Georgia, Virginia, and Tennessee, as well as provides gas marketing services, wholesale gas services, and gas pipeline investments operations. It owns and/or operates 30 hydroelectric generating stations, 24 fossil fuel generating stations, 3 nuclear generating stations, 13 combined cycle/cogeneration stations, 44 solar facilities, 13 wind facilities, 1 fuel cell facility, and 1 battery storage facility; and constructs, operates, and maintains 75,924 miles of natural gas pipelines and 14 storage facilities with total capacity of 157 Bcf to provide natural gas to residential, commercial, and industrial customers. The company serves approximately 8.6 million electric and gas utility customers. It also provides products and services in the areas of energy efficiency, and utility infrastructure. In addition, the company offers digital wireless communications and fiber optics services. The Southern Company was incorporated in 1945 and is headquartered in Atlanta, Georgia.