Yet another large step in the quest to make green building efficient and more affordable: Green building leader Bensonwood Homes has constructed a prototype net zero-energy home that was recently awarded LEED Platinum status, the U.S. Green Building Council's highest rating for green building construction.
The Unity Home, currently occupied by the president of environmentally focused Unity College and his wife, uses widely available green building strategies including passive heating, tight thermal insulation and concrete slab foundation (which allows the home to stay warmer in winter and cooler in summer). These low-energy techniques work so well that even in the cold Maine winter, the homeowners rarely need to rely on the rooftop solar panels for energy to heat their home.
