CNG vs. LNG: how to choose your natural gas fuel type

Which fuel works best for you—compressed natural gas (CNG) or liquefied natural gas (LNG)? It depends on a few things, like fuel availability in your area, the type and size of your vehicles and your required driving range.



What it is:

natural gas that’s been piped to a compression facility

natural gas that’s been cooled to -162 °C to become a liquid

Best for:

medium-duty vehicles travelling a moderate distance between refuelling

the best choice when extended driving range is required because an LNG tank holds 2.5 times more fuel than a similar-sized CNG tank

Vehicle types:

  • Class 6, 7, 8 long-haul tractors
  • waste haulers and dump trucks
  • courier and delivery trucks
  • transit and school buses
  • passenger cars (e.g. Honda Civic)
  • pickup trucks (e.g. Ford F-150)
  • cargo vans and minivans (e.g. Chevrolet Express Van)
  • Class 6, 7, 8 long-haul tractors
  • marine vessels such as coastal ferries
  • heavy-duty mine haul trucks
  • locomotives

How it’s delivered:

through our natural gas system to various dispensing stations across B.C.

From our LNG storage facilities by tank truck to:

  • permanent LNG dispensing station
  • mobile fuelling station on a customers’ property1
  • commercial fuelling station along a regional corridor

Fuelling process 

Both CNG and LNG come from our distribution system—which we continue to further decarbonize with the addition of low-carbon2 Renewable Natural Gas3 (RNG)—but there are differences on how each fuel type is delivered and dispensed.

CNG fuelling 


LNG fuelling 


Questions? We’re here to help. 

Email us at [email protected]

1LNG delivery is an optional service that FortisBC can provide to you at a regulated rate.

2When compared to the lifecycle carbon intensity of conventional natural gas. The burner tip emission factor of FortisBC’s current Renewable Natural Gas (also called RNG or biomethane) portfolio is 0.29 grams of carbon dioxide equivalent per megajoule of energy (gCO2e/MJ). FortisBC’s current RNG portfolio lifecycle emissions are -22 gCO2e/MJ. This is below B.C.’s low carbon threshold for lifecycle carbon intensity of 36.4 gCO2e/MJ as set out in the 2021 B.C. Hydrogen Strategy.

3Renewable Natural Gas (also called RNG or biomethane) is produced in a different manner than conventional natural gas. It is derived from biogas, which is produced from decomposing organic waste from landfills, agricultural waste and wastewater from treatment facilities. The biogas is captured and cleaned to create Renewable Natural Gas.