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Stad van de Zon (City of the Sun) is a housing and building project in Heerhugowaard, The Netherlands.
The goal was and is to build homes that always point to the sun and that a big part of the energy that those homes use solar power. This way, the project is to become the first carbon neutral[1][2] as well as the largest photovoltaic neighbourhood worldwide.[3][4]
Currently (2007) there are about 1500 homes for people to live in.