?Green? house effect

The ?HingeHouse? is a sloped-roof, solar-powered structure that can be placed on a site for maximum efficiency, reducing heating and cooling costs to near zero. Cambridge architect Maryann Thompson, best known for designing high-end sustainable homes and an innovative trellis garden at the Arnold Arboretum, created the ?HingeHouse,? which is being manufactured in Acton by the parent company of Acorn Homes?