“Water battery” proposed in western Maine

MAINE MONITOR • August 22, 2025

Pumped storage hydropower could be coming to Maine. In July, Western Maine Energy Storage filed for a preliminary permit from the Federal Energy Regulatory Commission (FERC) for a proposed development near the Central Maine Power transmission corridor. The project would be mostly in Dixfield, with a small portion in Canton, in Oxford County. The FERC permit, which will secure the site for further studies including economic and environmental feasibility, is the first step in a permitting process that will take years.