Sempra operates as an energy-services holding company in the United States and internationally. The company's San Diego Gas & Electric Company segment provides electric services; and supplies natural gas. It offers electric services to approximately 3.6 million population and natural gas services to approximately 3.3 million population that covers 4,100 square miles. Its Southern California Gas Company segment owns and operates a natural gas distribution, transmission, and storage system that supplies natural gas to a population of approximately 22 million covering an area of 24,000 square miles. The company's Sempra Texas Utilities segment engages in the regulated transmission and distribution of electricity serving 3.8 million homes and businesses, and operation of 140,000 miles of transmission and distribution lines. Its transmission system includes 18,249 circuit miles of transmission lines, a total of 1,174 transmission and distribution substations, and interconnection to 130 third-party generation facilities totaling 45,403 megawatts. The company was formerly known as Sempra Energy and changed its name to Sempra in July 2021. Sempra was founded in 1998 and is headquartered in San Diego, California.

Sempra

The Southern Company, through its subsidiaries, engages in the generation, transmission, and distribution of electricity. It operates through Gas Distribution Operations, Gas Pipeline Investments, Wholesale Gas Services, and Gas Marketing Services segments. The company also develops, constructs, acquires, owns, and manages power generation assets, including renewable energy 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. In addition, it owns and/or operates 30 hydroelectric generating stations, 24 fossil fuel generating stations, three nuclear generating stations, 13 combined cycle/cogeneration stations, 45 solar facilities, 15 wind facilities, one fuel cell facility, and four battery storage facility; and constructs, operates, and maintains 76,289 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 8.7 million electric and gas utility customers. Further, the company offers digital wireless communications and fiber optics services. The Southern Company was incorporated in 1945 and is headquartered in Atlanta, Georgia.

The Southern Company

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, hydro, 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. American Electric Power Company, Inc. was incorporated in 1906 and is headquartered in Columbus, Ohio.

American Electric Power Company, Inc.

PG&E Corporation, through its subsidiary, Pacific Gas and Electric Company, engages in the sale and delivery of electricity and natural gas to customers in northern and central California, the United States. It generates electricity using nuclear, hydroelectric, fossil fuel-fired, fuel cell, and photovoltaic sources. As of December 31, 2021, the company owns and operates approximately 18,000 circuit miles of interconnected transmission lines; 33 electric transmission substations, approximately 108,000 circuit miles of distribution lines, 67 transmission switching substations, and 753 distribution substations; and natural gas transmission, storage, and distribution system consisting of approximately 43,800 miles of distribution pipelines, approximately 6,200 miles of backbone and local transmission pipelines, and various storage facilities. It serves residential, commercial, industrial, and agricultural customers, as well as natural gas-fired electric generation facilities. The company was incorporated in 1905 and is headquartered in San Francisco, California.

PG&E Corporation

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 3.5 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 1,555 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 0.1 million customers in southeastern New York. In addition, it operates 533 circuit miles of transmission lines; 15 transmission substations; 64 distribution substations; 87,564 in-service line transformers; 3,924 pole miles of overhead distribution lines; and 2,291 miles of underground distribution lines, as well as 4,350 miles of mains and 377,971 service lines for natural gas distribution. Further, the company owns, operates, and develops renewable and energy infrastructure projects; and provides energy-related products and services to wholesale and retail customers, as well as invests in electric and gas transmission projects. It primarily sells electricity to industrial, commercial, residential, and government customers. The company was founded in 1823 and is based in New York, New York.

Consolidated Edison, Inc.

Dominion Energy, Inc. produces and distributes energy in the United States. 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 approximately 2.7 million residential, commercial, industrial, and governmental customers in Virginia and North Carolina. The Gas Distribution segment is involved in the regulated natural gas sales, transportation, gathering, storage, and distribution operations in Ohio, West Virginia, North Carolina, Utah, southwestern Wyoming, and southeastern Idaho that serve approximately 3.1 million residential, commercial and industrial customers. It also has nonregulated renewable natural gas facilities in operation. The Dominion Energy South Carolina segment generates, transmits, and distributes electricity to approximately 772,000 customers in the central, southern, and southwestern portions of South Carolina; and distributes natural gas to approximately 419,000 residential, commercial, and industrial customers in South Carolina. The Contracted Assets segment is involved in the nonregulated long-term contracted renewable electric generation and solar generation facility development operations; and gas transportation, LNG import, and storage operations, as well as in the liquefaction facility. As of December 31, 2021, the company's portfolio of assets included approximately 30.2 gigawatt of electric generating capacity; 10,700 miles of electric transmission lines; 78,000 miles of electric distribution lines; and 95,700 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.

Dominion Energy, Inc.

Duke Energy Corporation, together with its subsidiaries, operates as an energy company in the United States. It operates through three segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure, and Commercial Renewables. The Electric Utilities and Infrastructure segment generates, transmits, distributes, and sells electricity in the Carolinas, Florida, and the Midwest; and uses coal, hydroelectric, natural gas, oil, renewable generation, and nuclear fuel to generate electricity. It also engages in the wholesale of electricity to municipalities, electric cooperative utilities, and load-serving entities. This segment serves approximately 8.2 million customers in 6 states in the Southeast and Midwest regions of the United States covering a service territory of approximately 91,000 square miles; and owns approximately 50,259 megawatts (MW) of generation capacity. The Gas Utilities and Infrastructure segment distributes natural gas to residential, commercial, industrial, and power generation natural gas customers; and owns, operates, and invests in pipeline transmission and natural gas storage facilities. It has approximately 1.6 million customers, including 1.1 million customers in North Carolina, South Carolina, and Tennessee, as well as 550,000 customers in southwestern Ohio and northern Kentucky. The Commercial Renewables segment acquires, owns, develops, builds, and operates wind and solar renewable generation projects, including nonregulated renewable energy and energy storage services to utilities, electric cooperatives, municipalities, and corporate customers. It has 23 wind, 178 solar, and 2 battery storage facilities, as well as 71 fuel cell locations with a capacity of 3,554 MW across 22 states. The company was formerly known as Duke Energy Holding Corp. and changed its name to Duke Energy Corporation in April 2005. The company was founded in 1904 and is headquartered in Charlotte, North Carolina.

Duke Energy Corporation

NextEra Energy, Inc., through its subsidiaries, generates, transmits, distributes, and sells electric power to retail and wholesale customers in North America. The company generates electricity through wind, solar, nuclear, coal, and natural gas facilities. It also develops, constructs, and operates long-term contracted assets that consists of clean energy solutions, such as renewable generation facilities, battery storage projects, and electric transmission facilities; sells energy commodities; and owns, develops, constructs, manages and operates electric generation facilities in wholesale energy markets. As of December 31, 2021, the company had approximately 28,564 megawatts of net generating capacity; approximately 77,000 circuit miles of transmission and distribution lines; and 696 substations. It serves approximately 11 million people through approximately 5.7 million customer accounts in the east and lower west coasts of Florida. The company was formerly known as FPL Group, Inc. and changed its name to NextEra Energy, Inc. in 2010. The company was founded in 1925 and is headquartered in Juno Beach, Florida.

NextEra Energy, Inc.

Exelon Corporation, a utility services holding company, engages in the energy generation, delivery, and marketing businesses in the United States and Canada. It owns nuclear, fossil, wind, hydroelectric, biomass, and solar generating facilities. The company also sells electricity to wholesale and retail customers; and sells natural gas, renewable energy, and other energy-related products and services. Additionally, it is involved in the purchase and regulated retail sale of electricity and natural gas; and transmission and distribution of electricity, and distribution of natural gas to retail customers. Further, the company offers support services, including legal, human resources, information technology, financial, supply management, accounting, engineering, customer operations, distribution and transmission planning, asset management, system operations, and power procurement services. It serves distribution utilities, municipalities, cooperatives, and financial institutions, as well as commercial, industrial, governmental, and residential customers. Exelon Corporation was incorporated in 1999 and is headquartered in Chicago, Illinois.

Exelon Corporation

Public Service Enterprise Group Incorporated, through its subsidiaries, operates as an energy company primarily in the Northeastern and Mid-Atlantic United States. It operates through two segments, PSE&G and PSEG Power. The PSE&G segment transmits electricity; distributes electricity and gas to residential, commercial, and industrial customers, as well as invests in solar generation projects, and energy efficiency and related programs; and offers appliance services and repairs. As of December 31, 2021, it had electric transmission and distribution system of 25,000 circuit miles and 862,000 poles; 56 switching stations with an installed capacity of 39,353 megavolt-amperes (MVA), and 235 substations with an installed capacity of 9,285 MVA; four electric distribution headquarters and five electric sub-headquarters; and 18,000 miles of gas mains, 12 gas distribution headquarters, two sub-headquarters, and one meter shop, as well as 58 natural gas metering and regulating stations. Public Service Enterprise Group Incorporated was incorporated in 1985 and is based in Newark, New Jersey.

Public Service Enterprise Group Incorporated

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Ticker	Market Cap	Gross Profit Margin	Forward P/E
SRE	$57,739.47M	41.3%	18.3
SO	$92,861.20M	49.0%	18.6
AEP	$61,090.41M	48.4%	18.5
PCG	$33,309.33M	38.0%	9.8
ED	$35,198.44M	53.4%	17.1
D	$50,662.68M	49.0%	16.6
DUK	$89,656.56M	52.4%	17.9
NEE	$170,098.41M	62.0%	21.6
EXC	$44,049.75M	42.3%	15.4
PEG	$39,335.83M	35.6%	19.1