 CHICAGO--BUSINESS WIRE--In advance of National Energy Efficiency Day, which is Wednesday, Oct. 6, ComEd encourages customers, particularly those on a limited budget, to learn more about the many available energy-efficiency services and incentives that can help them save money and energy. The ComEd Energy Efficiency Program is one of the largest programs in the nation offering residential, business and public-sector customers a variety of options that can help them cut back on their energy use 