Exelon Corporation, headquartered at Chicago, Exelon, is a $15 billion company that has a customer base of 5.2 million customers for its electricity and 470,000 customers for its gas. The stocks of this company are traded on the NYSE under the symbol EXC. Energy generation, power marketing, and delivery are the major activities of Exelon Corporation across the nation. It has strong roots in Midwest and Mid Atlantic and has the largest nuclear fleet in the United States.
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