A PV roof assembly (6) includes a roof (12) mountable to an electric vehicle (4), and a PV assembly (10) at the upper part of the roof. The PV assembly may be mounted to a separate roof surface (34) or the PV assembly may itself constitute all or part of the roof. The vehicle may include a secondary...http://www.google.de/patents/US20020174889?utm_source=gb-gplus-sharePatent US20020174889 - Electric vehicle roof
