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Dominion Energy, Inc. produces and distributes energy in the United States. It operates through three operating segments: Dominion Energy Virginia, Dominion Energy South Carolina, and Contracted Energy. The Dominion Energy Virginia segment generates, transmits, and distributes regulated electricity to approximately 2.8 million residential, commercial, industrial, and governmental customers in Virginia and North Carolina. The Dominion Energy South Carolina segment generates, transmits, and distributes electricity to approximately 0.8 million customers in the central, southern, and southwestern portions of South Carolina; and distributes natural gas to approximately 0.4 million residential, commercial, and industrial customers in South Carolina. The Contracted Energy segment is involved in the nonregulated long-term contracted renewable electric generation and renewable natural gas facility. As of December 31, 2023, the company's portfolio of assets included approximately 29.5 gigawatt of electric generating capacity; 10,600 miles of electric transmission lines; 79,300 miles of electric distribution lines; and 94,800 miles of gas distribution mains and related service facilities. The company was formerly known as Dominion Resources, Inc. Dominion Energy, Inc. was incorporated in 1983 and is headquartered in Richmond, Virginia.

Consolidated Edison, Inc., through its subsidiaries, engages in the regulated electric, gas, and steam delivery businesses in the United States. It offers electric services to approximately 3.7 million customers in New York City and Westchester County; gas to approximately 1.1 million customers in Manhattan, the Bronx, parts of Queens, and Westchester County; and steam to approximately 1,530 customers in parts of Manhattan. The company also supplies electricity to approximately 0.3 million customers in southeastern New York and northern New Jersey; and gas to approximately 0.2 million customers in southeastern New York. In addition, it operates 545 circuit miles of transmission lines; 15 transmission substations; 63 distribution substations; 90,051 in-service line transformers; 3,788 pole miles of overhead distribution lines; and 2,314 miles of underground distribution lines, as well as 4,363 miles of mains and 380,870 service lines for natural gas distribution. Further, the company invests in electric and gas transmission projects. It primarily sells electricity to industrial, commercial, residential, and government customers. Consolidated Edison, Inc. was founded in 1823 and is based in New York, New York.

Sempra operates as an energy infrastructure company in the United States and internationally. It operates through three segments: Sempra California, Sempra Texas Utilities, and Sempra Infrastructure. The Sempra California segment provides electric services; and natural gas services to San Diego County. As of December 31, 2023, it offered electric services to approximately 3.6 million population and natural gas services to approximately 3.3 million population that covers 4,100 square miles. This segment owns and operates a natural gas distribution, transmission, and storage system that supplies natural gas. As of December 31, 2023, it serves a population of 21 million covering an area of 24,000 square miles. The Sempra Texas Utilities segment engages in the regulated electricity transmission and distribution. As of December 31, 2023, its transmission system included 18,298 circuit miles of transmission lines; 1,257 transmission and distribution substations; interconnection to 173 third-party generation facilities totaling 54,277 MW; and distribution system included approximately 4.0 million points of delivery and consisted of 125,116 miles of overhead and underground lines. The Sempra Infrastructure segment develops, builds, operates, and invests in energy infrastructure to help enable the energy transition in North American markets and worldwide. The company was formerly known as Sempra Energy and changed its name to Sempra in May 2023. Sempra was founded in 1998 and is based in San Diego, California.

WEC Energy Group, Inc., through its subsidiaries, provides regulated natural gas and electricity, and renewable and nonregulated renewable energy services in the United States. It operates through Wisconsin, Illinois, Other States, Electric Transmission, and Non-Utility Energy Infrastructure segments. The company generates and distributes electricity from coal, natural gas, oil, and nuclear, as well as renewable energy resources, including wind, solar, hydroelectric, and biomass; and distributes and transports natural gas. It also owns, maintains, monitors, and operates electric transmission systems; and generates, distributes, and sells steam. As of December 31, 2023, the company operated approximately 35,500 miles of overhead distribution lines and 36,500 miles of underground distribution cables, as well as 430 electric distribution substations and 523,700 line transformers; approximately 46,400 miles of natural gas distribution mains; 1,700 miles of natural gas transmission mains; 2.4 million natural gas lateral services; 490 natural gas distribution and transmission gate stations; and 69.3 billion cubic feet of working gas capacities in underground natural gas storage fields. The company was formerly known as Wisconsin Energy Corporation and changed its name to WEC Energy Group, Inc. in June 2015. WEC Energy Group, Inc. was founded in 1896 and is headquartered in Milwaukee, Wisconsin.