Natural gas powertrains in HGVs are a popular alternative to traditional diesel engines. They run on compressed or liquified gas.  Virtually all the gas supplied to UK gas trucks is biomethane, a renewable fuel (known as bio CNG, and bio LNG respectively).  This can save upwards of 85% GHG emissions.  Even if running on natural (fossil) gas there is a saving of around 15% compared to diesel. The use of gas as a fuel source can also provide a cost savings over diesel, particularly for fleets with a large number of vehicles and high annual mileage. Despite not being a zero tailpipe solution, Natural-Gas offers a low carbon stepping stone in the journey to decarbonisation. The adoption of gas powertrains in heavy commercial vehicles is expected to grow in the coming years as the demand for more sustainable and cost-effective transportation solutions increases- expect to be kept informed on this ever-changing market at Freight Carbon Zero.