About Commonwealth Edison
Commonwealth Edison Company, or ComEd, provides utility services to 70% of the Illinois population. A subsidiary of Exelon Corporation, ComEd’s top priority is to deliver safe and reliable power to its customers. ComEd also puts its customers’ needs first, offering a range of educational information on energy and technologically-advanced customer service functions.
Rated as the lowest carbon output area among major cities in the United States, ComEd’s service area spans 11,411 square miles in Northern Illinois. The service area stretches from the Wisconsin state border south to Pontiac, Illinois, and from the Indiana state border to the Mississippi River.