New England becomes coal-free as its last power plant closes permanently
Coal-free New England marks a milestone in U.S. energy history with the permanent closure of Merrimack Station in Bow, New Hampshire. The 480-megawatt plant, the region’s last coal-fired facility, ended commercial operations on September 12th following a settlement between owner Granite Shore Power and environmental groups. The shutdown makes New England the largest coal-free electricity market in the United States, nearly 18 months ahead of its original 2028 retirement date. The closure reflects decades of sustained advocacy, shifting economics, and expanding renewable capacity across the six-state grid.









