LNG is suitable for trucks that require longer ranges because liquid is denser than gas and, therefore, more energy can be stored by volume. LNG is typically used in medium- and heavy-duty vehicles. It’s best suited for fleets with centralized fueling, such as city fleets with garbage trucks, snowplows and maintenance vehicles.
LNG must be kept at cold temperatures and is stored in double-walled, vacuum-insulated pressure vessels. These storage requirements and the relatively high production cost have limited widespread use of the fuel.