A vehicle may include: a genset including: an engine configured to combust light fuel such as natural gas, a generator linked to the engine and configured to convert mechanical energy provided by the engine into electrical energy; one or more light fuel storage containers; one or more electrical storage devices such as batteries; a plurality of wheels; a plurality of electric motors configured to drive the plurality of wheels; a first power bus configured to electrically connect the generator of the genset, the one or more electrical storage devices, and the plurality of electric motors. Each of the one or more electrical storage devices may be disposed lower than each of the one or more light fuel storage containers with respect to a vertically extending reference axis that is perpendicular to a reference plane parallel to ground.