Exelon, the plant’s owner, is considering closing two of its nuclear facilities. Just a few years ago, the United States seemed poised to say farewell to nuclear energy . No company had completed a new plant in decades, and the disaster in Fukushima, Japan, in 2011 intensified public disenchantment with the technology, both here and abroad. But as the Paris agreement on climate change has put pressure on the United States to reduce greenhouse gas emissions, some state and federal officials have deemed nuclear energy part of the solution. They are now scrambling to save existing plants that can no longer compete economically in a market flooded with cheap natural gas . “We’re supposed to be adding zero-carbon sources, not subtracting,” Ernest Moniz, the energy secretary, said recently at a symposium that the department convened to explore ways to […]