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Switzerland: Geneva mandates 50 % solar share in hot water demand

Submitted by Baerbel Epp on December 29, 2010

The Canton of Geneva is the third one after Basel-Country and Vaud to have approved a mandate for a solar share in domestic hot water generation. Article 15.2 of the new energy law, which came into power in September 2010, stipulates that at least 30 % of a building's hot water demand is to be covered by a solar water heating system. This regulation applies to all sorts of new buildings, as well as to extensions and roof renovations of existing ones.

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