CHICAGO–(BUSINESS WIRE)–As pressure on energy costs continues to rise, ComEd helped families and businesses across northern Illinois save a total of $13 billion on their energy bills through its award-winning ComEd Energy Efficiency Program. The program, one of the largest in the nation, offers a range of services and incentives to help customers manage energy use and lower energy costs, while helping the environment. Since 2008, ComEd customers who participated in the energy-efficiency progr