FAA Efforts Sustainable Aviation Fuels Grand Challenge Update (Jim Hileman StART 10/26/2022)

• SAF are “drop-in” liquid aviation fuels – same infrastructure, engines & aircraft • SAF can reduce lifecycle GHG and air quality emissions substantially – critical to aviation de-carbonization • Viable technologies exist – seven alternative fuel pathways currently approved for use, and two approved for co-processing with petroleum, more under evaluation for approval • Scalable feedstocks – wastes & residues, biomass, sugars, oils and energy crops can all supply SAF • Widely accepted by airlines, business, and general aviation • Broadly supported among federal agencies as meeting critical goals - climate, energy security, rural economic development • Critical to international efforts to address aviation emissions Federal Aviation Administration Sustainable Aviation Fuels – Life Cycle Benefit FAA have extensive research that have supported development of rigorous life cycle accounting methods over the last decade: - Argonne National Labs GREET Model - ICAO Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) - SAF Blenders Tax Credit (I.R.A. Sections 13203 and 13704) Diagram from ATAG Beginner’s Guide to SAF, which is available at: https://aviationbenefits.org/downloads/beginners-guide-to-sustainable-aviation-fuel/ The extent to which any particular SAF provides a climate benefit depends on SAF’s life cycle emissions profile, taking into account the production, transportation, and combustion of the SAF, as well as indirect effects. Federal Aviation Administration Testing accelerate SAF development •Test fuels • Improve testing methods •Conduct evaluation •Streamline approval Analysis environmental and economic sustainability •Lifecycle emissions •Cost reduction •Supply potential •Supply chain opportunities Coordination support SAF integration •Public-private partnership – CAAFI •U.S. interagency cooperation •International…

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