Germany's "solar city"

"Solar energy in Freiburg has guaranteed feed-in tariffs (thanks to Germany's Renewable Energy Law). As the primary obstacle to increased solar has been cost, especially with regard to solar rooftop PV, the fixed price for electricity and renewable energy feed-in tariffs guaranteed by German law, have helped solar to be cost-competitive. Vauban is a city district in Freiburg in which the majority of homes run on solar energy generated on-site. Vauban is known as one of the most sustainable city districts in the world...In addition to using solar power as a major energy source, Freiburg uses biomass for the majority of the rest of the city's energy needs. Over 40% of Freiburg consists of woodland and green spaces, and over 5000 hectares of forest surrounds the city"