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Western Maine Energy Storage is proposing a $1 billion pumped storage hydropower project in Oxford County, featuring two interconnected reservoirs designed to generate 500 megawatts of on-demand power. The company has filed for a preliminary permit with the Federal Energy Regulatory Commission, with feasibility studies expected to take four to five years before construction potentially begins around 2031 and operations by 2033. This initiative aims to stabilize the grid and enhance renewable energy reliability in Maine.