A Glimpse Inside a Super Energy-Efficient Home

One year ago, my family joined Belfast Cohousing & Ecovillage in Midcoast Maine and moved into a high performance house, with triple-pane windows and doors, large south-facing windows, lots of insulation from the slab to the attic, and a metal roof. Our home is heated largely by the sun, appliances and occupants, but a modest heating system is avai