The company, which plans to extend license period between 30 to 50 years for each facility, will work with FERC and other agencies for this purpose.
Exelon Generation said the applications submitted to FERC support its commitment to preserve these emission-free electricity sources and enhance the local environment.
Conowingo is a conventional hydroelectric power plant in Darlington, Maryland, while Muddy Run is a pumped-storage hydroelectric power plant in Drumore Township, Pennsylvania.
The Maryland plant’s 11 units are capable of generating 572MW at full power, while the Pennsylvania plant’s eight units could generate 1,070MW of electricity.
Operating licenses for Muddy Run and Conowingo will expire on 31 August 2014 and 1 September 2014, respectively.
Exelon Generation claims to spend over $40m per year to operate and maintain both facilities, which are operated by Exelon Power.
Exelon Power Environmental Services vice president Vicky Will said, "Our goal is to keep Conowingo and Muddy Run providing clean and safe electricity for decades to come."
