Our Footprint

Headquartered in Chicago, Exelon has operations and business activities in 47 states, the District of Columbia and Canada. Exelon Generation is the largest competitive U.S. power generator, with approximately 35,000 megawatts of owned capacity comprising one of the nation's cleanest and lowest-cost power generation fleets. Constellation provides energy products and services to approximately 100,000 business and public sector customers and approximately 1 million residential customers. Exelon's utilities deliver electricity and natural gas to more than 6.6 million customers in central Maryland (BGE), northern Illinois (ComEd) and southeastern Pennsylvania (PECO) and serve a population of 15.4 million people.