Exelon-Pepco merger could create largest U.S. electric utility

The proposed merger of Exelon Corporation and Pepco Holdings Inc. would, if approved, create the largest electric utility holding company in the United States as measured by number of customers. The combined 8.5 million customers served by the new Exelon would surpass the number of customers served by the next-largest utility holding company, Duke Energy, which merged with Progress Energy in 2012 More »