<p>The device has a wind stop base arranged in the height of a belt line of a bodywork of a motor vehicle. A wind deflector is pin-jointed with the wind stop base. The wind deflector is movable between an ineffective position and an effective position by an electrical drive unit relative to the wind stop base. An electrical energy storage (160) is provided, where the electrical energy storage provides the electrical energy for operating the electrical drive unit. The electrical energy storage is chargeable with solar cells (140).</p>
