Fuel for Sustainable Mobility
Liquid or gaseous fuels are fundamental for the operation of internal combustion engines (ICEs). The quality of the fuel used in a vehicle can improve or decrease the performance of emission control systems. Therefore, any low or zero-carbon, renewable and sustainable fuels that will be available in the coming years will need to match the specification of the best conventional fuels.
The use of alternative and renewable fuels lowers greenhouse gas (GHG) emissions while using current technology and fuelling infrastructure. The increased blending of renewable fuels in the existing European fuelling infrastructure will, therefore, help to further reduce GHG emissions in the short term. Furthermore, a shift from fossil fuel to low-carbon liquid fuels from the non-fossil origin, with no or very limited net CO2 emissions during their production and use compared to fossil-based fuels will enable internal combustion engine applications to continue contributing with a positive environmental impact.
In the context of low-carbon and (blending of) renewable fuel, AECC fully supports the European Commission policy priority of accelerating the deployment of alternative fuel infrastructure to contribute to the EU’s overall objective of significantly reducing CO2 emissions from road and non-road transport and reducing the dependency on fossil fuel. The revision of the Alternative Fuel Infrastructure Directive (AFID) should be a unique instrument to reduce GHG emissions of the existing vehicle and it would also be appropriate that the AFID foresees a direct link as an enabler to the Renewable Energy Directive (RED) objectives.
AECC recognises the importance of low-carbon and renewable fuels in the future of road transport. For this reason, AECC is testing more sustainable and renewable fuels in the AECC projects such as on the ultra-low emissions diesel demonstrator vehicle. AECC is consistently looking at new sustainable fuels to test in its programmes.
Source: Shell(2018a) – Link
Note: For e-diesel produced from solar and wind power sources only, and transported from the Middle East and North Africa to Europe on a marine vessel running on heavy fuel oil, a well-to-wheel (WTW) GHG intensity of approximately 4g CO2/km is obtained. This GHG intensity can be reduced further if the marine vessel is run on low-carbon fuels. The same amount of CO2 that is emitted at the tailpipe of the e-fuel powered vehicle (tank-to-wheel, TTW) is captured from air while producing the e-fuel. This is shown as a negative GHG emission, or a well-to-tank (WTT) credit, on figure above. On WTW basis, therefore, the tailpipe CO2 and the captured CO2 cancel each other out.