D vs PNM

Dominion Energy Inc.

Dominion Energy, Inc. produces and distributes energy. The company operates through four segments: Dominion Energy Virginia, Gas Distribution, Dominion Energy South Carolina, and Contracted Assets. The Dominion Energy Virginia segment generates, transmits, and distributes regulated electricity to residential, commercial, industrial, and governmental customers in Virginia and North Carolina. The Gas Distribution segment engages in the regulated natural gas gathering, transportation, distribution, and sales activities, as well as distributes nonregulated renewable natural gas. This segment serves residential, commercial, and industrial customers. The Dominion Energy South Carolina segment generates, transmits, and distributes electricity and natural gas to residential, commercial, and industrial customers in South Carolina. The Contracted Assets segment is involved in the energy marketing and price risk activities. As of December 31, 2020, the company's portfolio of assets included approximately 30.2 gigawatt of electric generating capacity; 10,500 miles of electric transmission lines; 85,600 miles of electric distribution lines; and 94,200 miles of gas distribution lines. It serves approximately 7 million customers. The company sells electricity at wholesale prices to rural electric cooperatives and municipalities, as well as into wholesale electricity markets. The company was formerly known as Dominion Resources, Inc. and changed its name to Dominion Energy, Inc. in May 2017. Dominion Energy, Inc. was incorporated in 1983 and is headquartered in Richmond, Virginia.

PNM Resources Inc. (Holding Co.)

PNM Resources, Inc., through its subsidiaries, provides electricity and electric services in the United States. It operates through Public Service Company of New Mexico (PNM) and Texas-New Mexico Power Company (TNMP) segments. The PNM segment engages in the generation, transmission, and distribution of electricity. It generates electricity using coal, natural gas and oil, nuclear fuel, solar, wind, and geothermal energy sources. As of December 31, 2020, this segment had owned or leased facilities with a total net generation capacity of 2,168 megawatts; and owned 3,389 miles of electric transmission lines, 6,077 miles of distribution overhead lines, 5,962 miles of underground distribution lines, and 255 substations. It also owns and leases office and other equipment, office space, vehicles, and real estate. The TNMP segment provides regulated transmission and distribution services. As of December 31, 2020, this segment owned 983 miles of overhead electric transmission lines, 7,282 miles of overhead distribution lines, 1,348 miles of underground distribution lines, and 110 substations. It also owns and leases vehicles, service facilities, and office locations throughout its service territory. The company serves approximately 800,000 homes and businesses in New Mexico and Texas. PNM Resources, Inc. was incorporated in 1917 and is headquartered in Albuquerque, New Mexico.