12 Facts About Exelon

Exelon Corporation is an American Fortune 100 energy company headquartered in Chicago, Illinois and incorporated in Pennsylvania.

Exelon is the largest electric parent company in the United States by revenue, the largest regulated electric utility in the United States with approximately 10 million customers, and was formerly the largest operator of nuclear power plants in the United States and the largest non-governmental operator of nuclear power plants in the world until the generation sources were spun off into an independent company, Constellation Energy, in 2022.

Exelon was created in October 2000 by the merger of PECO Energy Company of Philadelphia and Unicom Corp of Chicago, which owned Commonwealth Edison.

Exelon operates regulated utilities in Illinois, Pennsylvania, Maryland, Delaware, New Jersey, and Washington, DC.

In October 2009, Exelon had full or majority ownership of 23 nuclear reactors in 14 nuclear power plants.

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Exelon merged with Constellation Energy in March 2012 and acquired Pepco Holdings in March 2016.

Exelon Corporation was created as the result of a merger between PECO Energy Company and the Unicom Corporation in October 2000.

Under this merger, Exelon would have become the largest utility in the United States.

In 2012, when announcing the cancellation of new nuclear construction for Victoria County Station, Texas, Exelon stated that economic and market conditions, especially low natural gas prices, made the "construction of new merchant nuclear power plants in competitive markets uneconomical now and for the foreseeable future".

Exelon's shares traded at over $35 per share, and its market capitalization was valued at over US$42.

Exelon ranked No 92 in the 2018 Fortune 500 list of the largest United States corporations by total revenue.

Exelon Utilities is the corporation's regulated transmission and distribution companies.