New French buildings in commercial areas are obliged to install sun roofs or will be covered with a ‘green’ roof of plants. This is what the French government introduced in its new legislation. A roof with plants needs to assure that buildings are more isolated. During summer the building will be cooled and in wintertime an office will be heated. Environmental organisations initially wanted a more decisive law. New buildings that are being constructed should fall within the new rules and environmentalists. In the end just a part of the building needs to place solar panels or a roof garden.
France is in Europe 1 of the countries which is a long way behind when it comes to solar energy. The country uses about 5 gigawatt solar panels. By way of comparison, in Holland we use more than 1 gigawatt solar energy and in Germany 40.