Patent attributes
A shrouded enclosure is mounted to a vehicle roof, the shrouded enclosure comprising an air intake formed by controllable shrouds, a turbine, an electricity generating device, and a discharge outlet. The turbine is interposed between the air intake and the discharge outlet, operatively connected to the electricity generating device and adapted to operate by the air passing through the shrouded enclosure when the vehicle is in motion. The turbine rotates about a turbine shaft mounted on a pair of bearing towers. The rotational energy of the turbine shaft is transferred to the electricity generating device. A base plate is interposed between the shrouded enclosure and the mounting surface of the vehicle. An electrical circuit provides electrical continuity between the electricity generating device and the battery during predetermined periods thereby generating electrical energy to charge the battery with the generated electrical energy. The controllable shrouds are opened to a predetermined position during the predetermined periods of electrical continuity and are otherwise closed to form a predetermined aerodynamic shape to reduce drag during vehicle movement.