Renewable aviation fuel, commonly known as SAF, encompasses a range of production pathways that convert sustainable feedstocks into drop-in jet fuel. These technologies are the engine of aviation's decarbonization. According to Market Research Future, the market is undergoing a fundamental technology transition, with established HEFA pathways being complemented by advanced routes like Fischer-Tropsch and Power-to-Liquid, driven by regulatory mandates and airline offtake agreements.

The Dominance of HEFA and Its Maturation

HEFA is currently the workhorse of the renewable aviation fuel industry. This technology processes oils and fats—such as used cooking oil and animal tallow—through hydrogenation to produce a synthetic paraffinic kerosene that is chemically identical to conventional jet fuel. Its dominance, accounting for 62% of the market in 2025, stems from its ability to be deployed within existing petroleum refinery infrastructure, making it the most capital-efficient route to SAF production.

Producers like Neste, World Energy, and Phillips 66 have built significant capacity using this pathway. Phillips 66's Rodeo facility in California, for instance, achieved full conversion to renewable fuel production at roughly 40% of the cost of building a greenfield plant. HEFA's maturity provides a solid foundation for near-term supply growth, even as next-generation pathways scale.

Emerging Pathways: Fischer-Tropsch and Alcohol-to-Jet

The market is diversifying towards technologies that can utilize more abundant and lower-cost feedstocks. Fischer-Tropsch (FT) synthesis converts gasified biomass or waste—including municipal solid waste and agricultural residues—into a synthesis gas, which is then catalytically converted into liquid fuels. FT is growing at a CAGR of roughly 31.4%, driven by waste diversion mandates and projects like Fulcrum BioEnergy's Sierra BioFuels plant.

The Alcohol-to-Jet (AtJ) pathway is another promising route, particularly for regions with established ethanol infrastructure. This technology converts ethanol, often derived from sugarcane or corn, into jet fuel. Gevo's Net-Zero 1 project in South Dakota, backed by a USD 1.63 billion DOE loan guarantee, targets 65 million gallons per year of SAF production, demonstrating the scale potential of this pathway.

The Power-to-Liquid Frontier

Power-to-Liquid (PtL) represents the long-term frontier for renewable aviation fuel. This pathway combines green hydrogen—produced from renewable electricity—with captured CO₂ to create a synthetic kerosene through a reverse water-gas shift and FT process. PtL fuels can achieve lifecycle emissions reductions exceeding 95%, offering a near-zero carbon solution.

While currently at pilot scale, PtL is attracting massive investment, with over USD 4.2 billion in announced projects. The EU's ReFuelEU regulation includes a dedicated sub-mandate for synthetic fuels, providing a protected demand corridor. The Haru Oni project in Chile and Norsk e-Fuel's Mosjøen plant in Norway are among the first movers, targeting production costs below USD 2,000 per metric ton by 2030.

Feedstock Security and Diversification

A key challenge for the industry is securing sustainable and scalable feedstocks. The market is actively diversifying away from a reliance on used cooking oil. Agricultural residues, municipal solid waste, and even algae are being developed as feedstocks. Waste-to-jet pathways offer a dual benefit: diverting waste from landfills while producing fuel with a negative or near-zero feedstock cost. The development of these diverse feedstocks is essential for the long-term growth and cost-competitiveness of the market.

Future Outlook

The outlook for renewable aviation fuel production is one of rapid capacity expansion and technological convergence. By 2030, production capacity is likely to exceed 10 million metric tons per year. The industry will see a transition from HEFA dominance to a multi-pathway landscape, with FT and AtJ accounting for a growing share. Green hydrogen cost declines will be critical for the competitiveness of PtL pathways. Findings from Market Research Future underscore that the evolution of the Sustainable Aviation Fuel Market will be defined by innovation in production technologies and the successful mobilization of diverse, sustainable feedstocks.

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