PECO Energy Co
Energy Supply & Distribution
(215) 841-6027 2301 Market Street, Philadelphia, PA 19103, USA Open in Maps
Headquartered in Philadelphia, PECO is Pennsylvania ’s largest electric and natural gas utility, delivering power to more than 1.6 million electric customers and more than 511,000 natural gas customers in southeastern Pennsylvania. PECO is a subsidiary of Exelon Corporation (NYSE: EXC), the nation’s leading competitive energy supplier .