Exelon Services is not your father's mechanical contracting company.
It doesn't even resemble most of today's.
I had never heard of Exelon until a few weeks before my visit, when I decided to pursue a story about its former entity, Unicom Mechanical Services. Last October the Unicom name was put to pasture with the merger of electric utility giants PECO Energy Co. and Unicom Corp. The resulting entity is Exelon Corp., a holding company with five million customers, annual revenues of $12 billion and three major business segments: 1. Exelon Generation and Power Marketing, 2. Exelon Energy Delivery and 3. Exelon Enterprises. The first sells electrons and gas molecules. The second transmits them. The latter houses six unregulated business units, including the mechanical services subsidiary, Exelon Services, the subject of this article.