By Rich Heidorn Jr.
News briefs on companies in PJM Interconnection: Exelon and Mercuria Energy Group.
Additional news on this topic:
News briefs on companies in PJM Interconnection: American Municipal Power and AEP.
News briefs on companies in PJM Interconnection: Dominion and FirstEnergy.
News briefs on companies in PJM Interconnection: Ameren, Calpine, Duke and First Energy.