The Challenges of Decarbonizing Mobility
Dr Roger Cracknell, Shell, UK

Shell has presented three new energy transformation scenarios which explore different initial recovery responses to the crises of 2020 and how these responses develop into future pathways throughout the 2020s and beyond. Only one of the scenarios, called Sky 1.5, has a pace and timing for energy decarbonization that is fast enough to limit global warming to 1.5°C above pre-industrial levels by the end of this century.  Focusing on decarbonization of mobility, there is no “silver bullet” for achieving zero carbon mobility. Transportation of large volumes over long distances is a challenge for electrification and the optimal fuel choice is different for different mobility segments, and there will be a continued need for energy-dense and portable liquid and gaseous fuels.  Advanced biofuels and fuels from waste also have an important role to play. Renewable electrons can be converted to H2 via electrolysis and used for synthetic fuel manufacture. However, fuels manufactured from renewable electricity can consume up to 5 times as much electricity on a well to wheels basis compared to direct use of renewable electricity in a BEV.  Nevertheless, it is possible to have synthetic fuels, made from electricity, which meet the prevailing fuel specifications.

Key dates

Registration deadline

20 September 2021 (12:00 BST)

Organised by the IOP Combustion Group and IMechE