CHICAGO--(BUSINESS WIRE)--The summer heat is in full effect and today ComEd will call an Energy Savings Day during the hours of 1 – 4 p.m. for customers enrolled in its AC Cycling Thermostat Pilot and Peak Time Savings program. ComEd typically schedules Energy Savings Days when an increased demand for electricity throughout the Midwest region is anticipated. While the power supply in the region is expected to be sufficient to meet anticipated high demand, customers enrolled in demand-response p