This 8,000 square-foot home produces 22 percent more energy than it uses. With a HERS rating of -22, it’s one of the lowest in Boulder County. The house itself is constructed with a super-insulated envelope, geothermal heating and cooling systems, south-facing, triple glazed windows that passively allow solar energy to flood the living space, a super-insulated building envelope, heat recovery ventilators that continuously bring in fresh air while extracting energy from exhausted, stale air, and long-standing LED lighting managed by a low-voltage home automation system. Standing as a beacon for the sustainable 20-acre property is a vertical axis wind turbine that generates energy for the buildings.
