Why sustainable aviation fuel is carrying the weight of aviation decarbonisation

In this conversation, we explore why sustainable aviation fuel (SAF) has become central to aviation’s decarbonisation challenge as air travel emissions rebound post-Covid. SAF is expected to deliver the majority of emissions reductions, with alternatives such as hydrogen, batteries and aircraft efficiencies playing smaller roles for long-haul flights.

The discussion explores current SAF production pathways, from established Hydroprocessed Esters and Fatty Acids (HEFA) technologies using waste oils to newer options offering greater feedstock flexibility.

• Why SAF is considered the main decarbonisation option for long-haul aviation
• How HEFA pathways dominate current SAF production
• Where Australia’s feedstock potential exceeds its regulatory settings
• What continues to complicate investment decisions on SAF

The challenge for the sector is turning technical feasibility into bankable projects.