“It can’t be done.” Those words were enough to motivate Tom Fullam of Vassalboro, Maine, to build his first high-performance house. The home achieved a HERS score of 38 and earned him a 2011 silver Energy Value Housing Award from the National Association of Home Builders Research Center. That soon led to a second, even higher-performing house, which has earned distinction as the first home in Maine to meet the requirements of the U.S. Department of Energy’s DOE Zero Energy Ready Home certification.