CHICAGO--(BUSINESS WIRE)--ComEd announced today that it had installed its one millionth smart meter in its service territory. The mission of installing nearly four million smart meters began in 2013 and, on an accelerated timeline path, is expected to be complete in 2018 – three years ahead of schedule. A smart meter is a digital electric meter that uses two-way radio communications to collect usage information and securely transmit it to ComEd through a wireless connection. “One million smart