Low-carbon aviation

The exhibit below illustrates the global technical potential for HEFA and cellulosic-sourced SAF using a range of technology performance and feedstock availability assumptions. Notably, much of the feedstock requires agricultural practices not widely used today (cover crops and the collection of them, purpos-grown oils on already-disturbed lands), or collections of waste not widely collected today — creating logistical challenges that may make certain levels of incremental supply economically unfeasible, despite their hypothetical potential. Given the constraints on cost-effective and readily available feedstock supply, we believe the volumes of SAF available to airlines in the future using these production pathways is likely overestimated using this methodology.