Zero-Energy Homes: A New Direction in Energy-Efficient Home Building

An energy-efficient home is about more than expensive photovoltaic panels and wind turbines. Zero-energy homes produce as much energy as they consume, and these exciting abodes are redefining what it means to build green.

Vermont Zero Energy House
Zero-energy houses, such as this one in Vermont, start with carefully detailed building envelopes. Controlling air leaks through exterior walls and roof and adding lots of insulation reduce the amount of energy needed for heating and cooling.