This ultra-efficient home is repaying owner Scott Shackleton with money from putting excess electricity into the grid. Located on a narrow lot in downtown Raleigh, North Carolina, the shotgun-style home generates nearly two-times the electricity it uses with a 4.7 kW solar array on the roof. That plus about 85% of domestic water is pre-heated with solar thermal, resulting in more energy savings.
This year’s HGTV Green Home is in the popular Stapleton infill development of Denver, Colorado. The New Urbanist community features nothing but Energy Star homes that are about 30% more energy efficient than standard homes and 20% more water efficient than typical Denver households. But the HGTV Green Home 2011 steps things up a notch with a LEED Platinum certified project — it’s one of about 40 in the state.
This home is officially the first Passive House in North Carolina. It’s also the first Passive House in the country built out of concrete, according to Chris Senior, certified Passive House consultant and owner of Anchorage Building Corp., the builder. Senior said his company was able to keep construction costs “surprisingly reasonable” by fashioning the entire exterior from concrete.