The power plant, known as Fremont Energy Center located in Fremont, completed earlier this month.
The facility comprises of two natural gas turbines and a steam turbine capable of producing 544MW of load-following capacity and 163MW of peaking capacity.
The parties entered into a definitive purchase agreement for the gas-fired facility in March this year.
FirstEnergy acquired the partially complete plant in January 2008 from Calpine Corp in that company’s bankruptcy proceeding.
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