The use of biomethane as a transport fuel is at once both the most exciting prospect for the further development of biogas in the United Kingdom, and also the part of the industry that has been most disappointing in terms of its development to date.
A report published in 20161 showed that using biomethane could reduce the well-to-wheel (WTW) CO2e emissions for road transport by between 35% and 88% depending on the vehicles and lifecycle analysis used. The European Biogas Association also points out that, ‘In addition to using pure biomethane in vehicles, a smart cost-efficient way to reduce greenhouse gas (GHG) emissions to meet national targets is by blending it with natural gas. For example, using a blend with 20% biomethane can yield GHG emission savings of 39% when compared to gasoline on the well-to-wheel basis.’