Southern Company is an American gas and electric utility holding company based in the Southern United States. It is headquartered in Atlanta, Georgia, with executive offices also located in Birmingham, Alabama. The company is the second largest utility company in the U.S. in terms of customer base, as of 2021. Through its subsidiaries it serves 9 million gas and electric utility customers in 6 states. Southern Company's regulated regional electric utilities serve a 120,000-square-mile (310,000 km2) territory with 27,000 miles (43,000 km) of distribution lines.
Progress Energy was a power generation and distribution company. Prior to its merger with Duke Energy, it was a Fortune 500 energy company with more than 21,000 megawatts of generation capacity and $9 billion in annual revenues. Headquartered in Raleigh, North Carolina, Progress Energy includes two major electric utilities that serve approximately 3.1 million customers in the Carolinas and Florida. As an independent company, the last chairman and CEO of Progress Energy was William D. Johnson; his predecessor was Robert McGehee, who died on October 9, 2007, at the age of 64 of a stroke while on a business trip to London.
The Public Service Enterprise Group, Inc. (PSEG) is a publicly traded diversified energy company headquartered in Newark, New Jersey, US established in 1985 with a legacy dating back to 1903.
Xcel Energy Inc. is a U.S. regulated electric utility and natural gas delivery company based in Minneapolis, Minnesota, serving more than 3.7 million electric customers and 2.1 million natural gas customers across parts of eight states. It consists of four operating subsidiaries: Northern States Power-Minnesota, Northern States Power-Wisconsin, Public Service Company of Colorado, and Southwestern Public Service Co.
American Electric Power Company, Inc. (AEP), is an American domestic electric utility company in the United States. It is one of the largest electric utility companies in the country, with more than five million customers in 11 states.
Florida Power & Light Company (FPL), the principal subsidiary of NextEra Energy Inc., is the largest power utility in Florida. It is a Juno Beach, Florida-based power utility company serving roughly 5 million customers and 11 million people in Florida. It is a rate-regulated electric utility that generates, transmits, distributes and sells electric energy. In 2020, the company was ranked as the nation's most reliable electric power utility for the fifth time in six years.
Duke Energy Corporation is an American electric power and natural gas holding company headquartered in Charlotte, North Carolina.
Constellation Energy Corporation is an American energy company headquartered in Baltimore, Maryland. The company provides electric power, natural gas, and energy management services. It has approximately two million customers across the continental United States.
FirstEnergy Corp. is an electric utility headquartered in Akron, Ohio. It was established when Ohio Edison merged with Centerior Energy in 1997. Its subsidiaries and affiliates are involved in the distribution, transmission, and generation of electricity, as well as energy management and other energy-related services. Its ten electric utility operating companies comprise one of the United States' largest investor-owned utilities, based on serving 6 million customers within a 65,000-square-mile (170,000 km2) area of Ohio, Pennsylvania, West Virginia, Virginia, Maryland, New Jersey, and New York. Its generation subsidiaries control more than 16,000 megawatts of capacity, and its distribution lines span over 194,000 miles. In 2018, FirstEnergy ranked 219 on the Fortune 500 list of the largest public corporations in the United States by revenue.
DTE Energy is a Detroit-based diversified energy company involved in the development and management of energy-related businesses and services in the United States and Canada. Its operating units include an electric utility serving 2.2 million customers and a natural gas utility serving 1.3 million customers in Michigan.
SCANA Corporation was an American regulated electric and natural gas public utility. The company was based in Cayce, South Carolina, a suburb of Columbia, South Carolina. Following the Nukegate scandal, the company's stock fell and the company was in disrepair. In January 2019, SCANA was acquired by Dominion Energy. The corporate name SCANA was not an acronym, but was taken from the letters in South Carolina.
WEC Energy Group is an American company based in Milwaukee, Wisconsin that provides electricity and natural gas to 4.4 million customers across four states.
The Crystal River Energy Complex consists of seven power-generating plants on a 4,700-acre (1,900 ha) site near the mouth of the Crystal River in Citrus County, Florida. Crystal River 1, 2, 4, and 5 are fossil fuel power plants. Crystal River 3 was previously the sole nuclear power plant on the site (1977-2013). The Crystal River Combined Cycle site consists of two Mitsubishi gas turbines, which came on-line in 2018. The complex was developed in the early 1960s by the Florida Power Corporation and sold to Progress Energy Inc in 2000. Following Progress Energy's merger with Duke Energy in 2012, the facility is owned and operated by Duke Energy.
Carolina Power & Light (CP&L), later doing business as Progress Energy Inc., was an electrical generation, transmission, and distribution utility based in Raleigh, North Carolina. The company was founded on July 13, 1908 as the result of the merger and buyout of numerous small, private, and financial distressed utilities across the state. Known locally as "CP&L" the company's main operations were in Eastern North Carolina and in parts of northeastern South Carolina and in the Asheville area of western North Carolina. The company merged with Florida Progress Corporation in 2000 to become Progress Energy Inc.
Dominion Energy, Inc., commonly referred to as Dominion, is an American energy company headquartered in Richmond, Virginia that supplies electricity in parts of Virginia, North Carolina, and South Carolina and supplies natural gas to parts of Utah, Idaho and Wyoming, West Virginia, Ohio, Pennsylvania, North Carolina, South Carolina, and Georgia. Dominion also has generation facilities in Indiana, Illinois, Connecticut, and Rhode Island.
PECO, formerly the Philadelphia Electric Company, is an energy company founded in 1881 and incorporated in 1929. It became part of Exelon Corporation in 2000 when it merged with Commonwealth Edison's holding company Unicom Corp.
NextEra Energy, Inc. is an American energy company with about 58 GW of generating capacity, revenues of over $18 billion in 2020, and about 14,900 employees throughout the US and Canada. It is the world's largest electric utility holding company by market capitalization, with a valuation of over $120 billion as of Nov 2023. Its subsidiaries include Florida Power & Light (FPL), NextEra Energy Resources (NEER), NextEra Energy Partners, Gulf Power Company, and NextEra Energy Services.
EnergyUnited, based in Statesville, North Carolina, is the largest electric cooperative in North Carolina, serving nearly 125,000 metering points and 105,000 members. It was formed in 1998 by the merger of Crescent Electric Membership Corporation and Davidson Electric Membership Corporation.
