Sonnenschiff Solar City Produces 4 Times The Energy It Consumes

08/16/2010 11:19 am ET | Updated May 25, 2011

Although net-zero projects have been creating a lot of buzz lately in the field of green building, the Sonnenschiff solar city in Freiburg, Germany is very much net positive. The self-sustaining city accomplishes this feat through smart solar design and lots and lots of photovoltaic panels pointed in the right direction.

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