Currently there are just five technology pathways certified for use. Only one of these technologies has commercial production capacity for sustainable jet fuel (the so called HEFA technology, or Hydrotreated Esters and Fatty Acids). The HEFA pathway uses waste oils as input. So today our jet fuel is mainly produced from waste oils, such as used cooking oil. The selected feedstocks largely determine the overall sustainability of our fuels and as such it must meet very strict criteria. To learn more about these criteria, our approach to sustainability in general and the selection of feedstock you can visit our sustainability page.
Used cooking oil (UCO) is a waste stream from the food processing industry and has limited high value end-uses. As it does not compete with the food chain and offers significant CO2 reduction, it qualifies as a very sustainable feedstock. The UCO is collected from restaurants, fast food chains and food manufacturing facilities. In general, it is collected locally by specialized waste oil collection companies and stored at waste oil depots before it is pre-treated for further processing. Next to these existing collection systems there is a large potential to collect UCO from single households. Despite the significant logistical challenges of collection scattered supply, we are actively developing programs to increase the availability of UCO.