Inflection Point Engineering Calculators

Sustainable Aviation Fuel (SAF) Blending Economics

Blended fuel cost, premium over Jet-A1, CO2e avoided, and net economics after RIN, IRA Sec 40B, and LCFS credits. Per ASTM D7566, CORSIA (ICAO Annex 16 Vol IV), and US IRA (26 USC §40B).

Standards: ASTM D7566 (Aviation Turbine Fuel with Synthesized Hydrocarbons), ICAO CORSIA Annex 16 Vol IV, US IRA Section 40B (26 USC §40B), CARB LCFS (Title 17 CCR §95480–95503), EPA RFS (40 CFR Part 80). Method: volumetric weighted-average cost; CO2e avoided = Vol × energy density × ΔCI with BTU→MJ = 1/947.817; credits are additive. Caveats: LCFS and RIN prices are volatile; ASTM D7566 limits HEFA-SPK blend ratio to 50%, ATJ to 10%. Always verify against current state/federal program terms.