BOSTON (AP) -- A Marlborough-based company that makes solar panels plans to double the size of a manufacturing facility being built at the former Fort Devens.
Evergreen Solar also was announcing Monday it plans to more than triple its 300-person workforce to 1,000 workers.
Gov. Deval Patrick and company Chief Executive Officer Richard Feldt were announcing the expansion during a news conference at Deer Island. The Massachusetts Water Resources Authority water treatment plant there uses Evergreen solar panels, and the facility will soon add two 190-foot wind turbines.
The conservation steps are expected to save the authority about $120,000 on its $12.5 million annual electric bill.
Feldt credits Patrick's emphasis on solar energy as the reason the company is expanding in Massachusetts.