Southwest Airlines invests in SAFFiRE Renewables

In Texas, Southwest Airlines Co. announced an investment into SAFFiRE Renewables, LLC (SAFFiRE), a company formed by D3MAX, LLC (D3MAX), as part of a Department of Energy (DOE)-backed project to develop and produce scalable, sustainable aviation fuel (SAF). Funded with a DOE grant matched by Southwest’s investment, SAFFiRE is expected to utilize technology developed by the DOE’s National Renewable Energy Laboratory (NREL) to convert corn stover, a widely available waste feedstock in the U.S., into renewable ethanol that then would be upgraded into SAF.

In 2021, the DOE awarded D3MAX the only pilot-scale grant for SAF production, with a goal to scale technology that could commercialize SAF. According to NREL, this could produce significant quantities of cost-competitive SAF that could provide an 84 percent reduction in carbon intensity compared to conventional jet fuel on a lifecycle basis.  Southwest’s match of the DOE’s grant supports phase one of the project, which is expected to include technology validation, preliminary design, and a business plan for a pilot plant.