The Potomac Electric Power Company (PEPCO) is an American utility company that supplies electric power to the city of Washington, D.C., and to surrounding communities in Maryland. It is owned by Exelon.
The Limerick Generating Station is a nuclear power plant in Pennsylvania located next to the Schuylkill River in Limerick Township, Montgomery County, northwest of Philadelphia. The facility has two General Electric boiling water reactor (BWR) units, cooled by natural draft cooling towers. According to its owner, Constellation Energy, the two units are capable of producing 2,317 megawatts of power, which combined would provide electricity to around 2 million households. Constellation owns and operates this facility following their separation from Exelon Corporation in 2022. With the exception of refueling outages, Limerick Generating Station continuously operates at 100% power. The plant is connected to the grid, and transmits power, via multiple 500kv transmission lines.
Commonwealth Edison, commonly known by syllabic abbreviation as ComEd, is the largest electric utility in Illinois, and the primary electric provider in Chicago and much of Northern Illinois. Its service territory stretches roughly from Iroquois County on the south to the Wisconsin border on the north and from the Iowa border on the west to the Indiana border on the east. For more than 100 years, Commonwealth Edison has been the primary electric delivery services company for Northern Illinois. Today, ComEd is a unit of Chicago-based Exelon Corporation, one of the nation's largest electric and gas utility holding companies. ComEd provides electric service to more than 3.8 million customers across Northern Illinois. The company's revenues totaled more than $7 billion in 2023.
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.
The Salem Nuclear Power Plant is a two unit pressurized water reactor nuclear power plant located in Lower Alloways Creek Township, in Salem County, New Jersey, United States. It is owned by PSEG Nuclear LLC and Constellation Energy.
Three Mile Island Nuclear Generating Station is a closed nuclear power plant on Three Mile Island in Londonderry Township, Dauphin County, Pennsylvania on Lake Frederic, a reservoir in the Susquehanna River just south of Harrisburg. It has two separate units, TMI-1 and TMI-2.
The Robert Emmett Ginna Nuclear Power Plant, commonly known as Ginna, is a nuclear power plant located on the southern shore of Lake Ontario, in the town of Ontario, Wayne County, New York, United States, approximately 20 miles (32 km) east of Rochester, New York. It is a single unit Westinghouse 2-Loop pressurized water reactor, similar to those at Point Beach, Kewaunee, and Prairie Island. Having gone into commercial operation in 1970, Ginna became the second oldest nuclear power reactor, after Nine Mile unit 1, still in operation in the United States when the Oyster Creek power plant was permanently shut down on September 17, 2018.
The Peach Bottom Atomic Power Station is an American nuclear power plant that is located 50 miles (80 km) southeast of Harrisburg in Peach Bottom Township, York County, Pennsylvania. Situated close to the Susquehanna River, it is three miles north of the Maryland border.
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.
Baltimore Gas and Electric Company (BGE) is a subsidiary of the Exelon Corporation and Maryland’s largest gas and electric utility. BGE earlier had created the holding company Constellation Energy in 1999. Constellation Energy was acquired by Exelon in 2012.
Allegheny Energy was an electric utility headquartered in Greensburg, Pennsylvania. It owned and operated electric generation facilities and delivered electric services to customers in Pennsylvania, West Virginia, Maryland, and Virginia. Allegheny Energy was incorporated in Maryland in 1925 as West Penn Electric Company. One of its predecessor companies dates back to the formation of West Penn Power on January 31, 1907.
Delmarva Power is an energy company that provides electricity and natural gas to customers on portions of the Delmarva Peninsula in the states of Delaware and Maryland. The company is a subsidiary of Exelon.
Pepco Holdings was a holding company incorporated in February 2001 for the purpose of effecting the acquisition of Conectiv Power Delivery by Potomac Electric Power Company. The acquisition was completed on August 1, 2002, at which time Pepco and Conectiv became wholly owned subsidiaries of PHI. Conectiv itself had been formed in 1998 to be the holding company of Delmarva Power & Light Company and Atlantic City Electric Company (ACE) in connection with the combination of DPL and ACE. In 2005, PHI resumed the use of the Delmarva Power and ACE brands for purposes of operations, with the result that Conectiv Energy was the only remaining Conectiv brand and was restricted for PHI's energy production facilities. Operations of the various companies controlled by Pepco Holdings take place in the Mid-Atlantic states of the United States. Pepco serves Washington, D.C., and its Maryland suburbs, Delmarva Power serves the Delaware and Maryland portions of the Delmarva Peninsula, and Atlantic City Electric serves South Jersey. In 2008, Delmarva Power sold its service area in the Virginia portion of the peninsula to A&N Electric Cooperative and Old Dominion Electric Cooperative for US$44 million. In April 2010, Conectiv Energy was sold to Calpine Corporation.
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.
Mayo A. Shattuck III is an American businessman and philanthropist. He currently serves as non-executive chairman of Chicago-based Exelon Corporation, co-chair of the Johns Hopkins University Capital Campaign and vice chairman of the board of Johns Hopkins Medicine. Shattuck is involved in a number of philanthropic efforts, including those at the Johns Hopkins University, First Tee, and the University of Maryland Baltimore County and is a notable advocate for nuclear power.
The Charles P. Crane Generating Station was a 400 megawatt (MW) coal power plant located on the Carroll Island Road in Bowleys Quarters, Maryland, 14 miles (23 km) east of Baltimore. The power plant was operated by C.P. Crane, LLC, a subsidiary of Avenue Capital Group. The station had two coal-fired generating units, rated at 190 and 209 MW nominal capacity, and powered by cyclone steam boilers. It also had a 16 MW oil-fired combustion turbine. The Crane station occupies 157 acres (64 ha) on the Middle River Neck Peninsula adjacent to the Seneca Creek tributary of the Gunpowder River, and is on the rural side of the Baltimore County Urban Rural Demarcation Line. The plant was closed in June 2018 and demolished via building implosion in August 2022.
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.
John William Rowe was an American attorney and energy executive. He served as the chairman and chief executive officer of the energy corporation Exelon Corporation, a utility holding company headquartered in Chicago that had the largest market capitalization in the electric utility industry.
Unicom Corporation was an American energy holding company formed in 1994 from Commonwealth Edison after executives considered a corporate image makeover. The holding company merged with PECO Energy Company on October 23, 2000 to form Exelon.
US$21.73 billion (2023)
