United Airlines and Honeywell are making a joint multimillion-dollar investment in Alder Fuels for sustainable aviation fuel development, the companies announced.
Alder Fuels is developing technologies that produce sustainable aviation fuel by converting biomass, such as crop and forest waste, into aviation fuel. Honeywell also will contribute its refining process, which the companies said ultimately could produce fuel that could serve as a 100 percent drop-in replacement for petroleum jet fuel.
The agreement also includes a commitment from United to purchase 1.5 billion gallons of the fuel once it can be produced to the carrier’s requirements. The carrier claims it is the largest publicly announced sustainable aviation fuel purchase agreement so far in the aviation industry.
United CEO Scott Kirby in a statement said sustainable aviation fuel is the fastest way to reduce emissions across its fleet but “to scale SAF as quickly as necessary, we need to look beyond existing solutions and invest in research and development for new pathways like the one Alder is developing.”