Passivhaus Building Allows Sonnenschiff Solar City to Produce 4x More Energy Than it Needs
We know you're passionate about sustainability—you've changed out light bulbs, turned off the air-conditioning, and cut energy consumption. You choose your bike over your car. But trust us, the Sonnenschiff solar city takes energy sustainability to another level.
Located in Freiburg, Germany, the Sonnenschiff solar city incorporates large mixed-use commercial and residential buildings with a community of 52 homes. Incredibly, Sonnenschiff ("Solar Ship") produces not only all the energy that it uses, but four times that much. Yes, four times.
Smart solar design and building to Passivhaus standards combine to make this net-positive dream come true. Designed by Rolf Disc, the Sonnenschiff solar city incorporates large arrays of photovoltaic panels that are all oriented for optimal solar capture. Individual residences within the Sonnenschiff solar city feature shed-type roofs covered with solar panels. The roof overhang provides summer shade while allowing passive solar heating from the lower rays of the winter sun, and the orientation of individual buildings within the Sonnenschiff solar city allow for optimal daylight access.