The island community of Samso in Denmark has become the first carbon-neutral community in the world. To make itself a zero-energy model community, the citizens of Samso built 11 onshore and 10 offshore wind turbines. Also, 70 percent of the homes have been converted so that heating is provide by biofuels or solar. As a result, not only has Samso been able to make it self a carbon-neutral, zero-energy community, but it produces surplus electricity that it sells to the mainland of Denmarks. All of this was done by the community itself with all investment paid for by the local citizens without any help from outside sources.