The most successful effort in sustainability is the use of natural light and air. In its opened up form, ie. with all its doors and windows opened up, it blends into a perfect continuum with the pristine surroundings. The interior spaces are well ventilated, shaded and protected from heat by the roof and double glazed openings, cutting down the energy use significantly. The totally glazed living room has completely openable/ foldable/ pivoted windows giving it an absolutely open to nature ventilation.