For off-highway, the CO2 reduction legislative roadmap is neither defined nor yet proposed. Looking to non-road mobile machinery (NRMM), the demands on power density, integration, range, robustness, up-time and package space all indicate the future need for energy-dense fuels. These demands offer potential for a more holistic approach including renewable fuels. Besides hydrogen, other sustainable fuels such as alcohols, renewable natural gas and paraffinic fuels could be explored. Caterpillar will give an overview covering the future drivers, needs and boundaries of the NRMM sector. The possibilities of adapting existing powertrains for alternative fuels will be presented and discussed.

• The challenges of CO2 reduction in the non-road mobile machinery sector
• How a lifeccyle benefit view compares the use of renewable fuels in a combustion system to that of battery electric and fuel cell applications
• Review of the different potential renewable fuels
• Development challenges of these renewable fuels
• How Caterpillar is overcoming these challenges