Solar energy in a vehicle

A photovoltaic device for a vehicle includes a plurality of solar modules, which are electrically insulated from each other and are adapted to receive solar radiation and convert the radiation into electric energy. The device comprises at least one DC / DC converter that is electrically coupled to the electrically isolated modules, and is adapted to receive the electrical energy from the solar modules and to enhance to be delivered to at least one component of the vehicle voltage. The solar modules include a plurality of solar cells that are designed to receive the solar radiation and convert the radiation into electric energy.