A method is disclosed for operating a channel coder, as is a channel coder that operates in accordance with the method. Gas is expanded through one or more turbo-expanders, preferably reformed, and sent to a fuel cell where electricity, heat, carbon-dioxide, and water are generated. Correspondences are found between anchors for attributes in the target geometry and anchors for attributes in the source geometry. The position of the attachment relative to the earthmoving machine may be determined based, at least in part, on identification of the RFID tag.