Mimicking the peaks of the surrounding conifers, an A-frame house in Sikhall, Vänersborg, Sweden is designed for entirely self-sufficient living. The largely wood and glass construction is the project of Naturvillan, a Swedish architecture firm focusing on building homes with minimal impacts on the environment. The triangular model shown here is “Atri,” a light-filled house with a wood-burning stove and solar panels attached to its slanted roof. Intended for energy production in both winter and summer, the two sources are robust enough to heat the water and provide electricity. More