Natural gas is the leading alternative fuel used by transit bus fleets across North America. It is also an increasingly popular choice for refuse truck fleet operators interested in reducing the cost and environmental impact of their operations. For highway tractors, natural gas is an emerging option that is well-suited to return-to-base and regional corridor fleets.
There are more than 50 models of factory-built natural gas vehicles available from North American truck and bus manufacturers. These vehicles incorporate engine technologies that have been designed specifically for natural gas with power, torque, and fuel efficiency similar to diesel engines. Warranty coverage is comparable to what is available on diesel engines.
Natural gas has less energy by volume than diesel fuel and it must be compressed (CNG) or liquefied (LNG) in order to store enough energy onboard for adequate driving range. The choice of whether to use CNG or LNG will depend on vehicle range requirements and local fuel sources.
There are several refueling station options available including private fast fill stations, onsite time fill stations, commercial cardlock stations, and public refueling stations. Provincial authorities are responsible for approving all new CNG and LNG station installations.