A solar panel support assembly (12) for movably supporting a solar panel (10) relative to a surface (22) of a vehicle (624) comprises a fixed support member (14), a movable support member (16), and a locking assembly (20). The fixed support member (14) is fixedly coupled to the surface (22). The movable support member (16) is configured to retain the solar panel (10), the movable support member (16) being movably coupled to the fixed support member (14). The locking assembly (20) is movable between a locked position and an unlocked position. When the locking assembly (20) is in the locked position, the movable support member (16) is substantially inhibited from moving relative to the fixed support member (14). The solar panel support assembly (12) can further comprise a mover assembly (18) that moves the movable support member (16) relative to the fixed support member (14).