ELMHURST, Ill.–(BUSINESS WIRE)–As small-business owners face rising operating costs, ComEd is marking a major milestone: more than 100,000 small businesses across northern Illinois have completed free facility assessments. Energy-saving improvements made through these assessments have helped participating businesses save $262.8 million annually on energy costs, supported by $607 million in incentives to offset the cost of upgrades.To mark the milestone, ComEd joined small-business owners and l