The competition held by the Department of Energy at Cornell University makes sure architects come up energy efficient homes. That’s the case with the Solar Decathlon House in Ithaca, New York, where the guys from Zero Energy Design (ZED) worked their butts to meet the criteria for a zero-energy residence. The one bedroom and one bathroom home uses photovoltaic and thermal systems, rain-water recycling and water-efficient fixtures and is surrounded by a green scenery. And the interior is just as stunning packing everything you’d need in a modern home. However, the most interesting part is the outside couch … Lovely!