A slotwall panel storage system has a slotwall panel with a plurality of generally T shaped slots forming a plurality of generally T shaped slats and a hanger bracket for removably mounting a device on the slotwall panel. The curve-fitted residual is used to update an error Kalman filter. A cover of the load floor assembly is molded from a polystyrene or other foam composite. Generation of a regulated output voltage lesser than the reference voltage is thereby enabled.