Question 1

What is sustainable aviation fuel (SAF)?

Accepted Answer

Sustainable Aviation Fuel (SAF) is a drop-in alternative to conventional Jet A-1 produced from non-fossil feedstocks such as waste fats, agricultural residues, municipal solid waste, or captured CO2. SAF meets ASTM D7566 specification and reduces lifecycle CO2 emissions by 40–80% compared to conventional jet fuel. It is fully compatible with existing aircraft engines and airport infrastructure without modification.

Question 2

Who are the main SAF suppliers?

Accepted Answer

Global SAF suppliers include Neste (world's largest SAF producer), World Energy, SkyNRG, TotalEnergies, and specialist aviation fuel companies like SUAT Fuels. SUAT Fuels sources certified SAF from approved producers and manages blending, certification, and delivery to airlines at 1,150+ airports across Europe and worldwide.

Question 3

How much CO2 does SAF reduce?

Accepted Answer

SAF reduces lifecycle CO2 emissions by 40% to 80% compared to conventional Jet A-1, depending on the production pathway and feedstock. HEFA-SPK from waste cooking oil typically achieves 70–80% reduction. Fischer-Tropsch SAF from biomass can reach 60–80% reduction. The lifecycle calculation (LCA) covers feedstock growth/collection, production, transport, and combustion.

Question 4

Is SAF drop-in compatible with existing aircraft?

Accepted Answer

Yes. SAF certified under ASTM D7566 is fully drop-in compatible with all commercial jet aircraft engines and existing airport fuel infrastructure. No aircraft modifications are required. SAF is typically delivered as a blend of up to 50% SAF + 50% conventional Jet A-1 (the blend then meets ASTM D1655 as 'Jet A-1'). Pure 100% SAF (neat) certification is under development.

Question 5

What is CORSIA and how does SAF qualify?

Accepted Answer

CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation) is ICAO's global carbon offsetting program. SAF qualifies as a CORSIA Eligible Fuel when it meets sustainability criteria under an approved certification scheme (e.g., ISCC, RSB). Airlines using CORSIA-eligible SAF can claim emissions reductions in their CORSIA compliance calculations, potentially reducing their offsetting obligations.

Question 6

What SAF blends does SUAT Fuels offer?

Accepted Answer

SUAT Fuels offers SAF from multiple approved ASTM D7566 pathways including HEFA-SPK (from waste fats and oils), AtJ-SPK (alcohol-to-jet), and FT-SPK (Fischer-Tropsch). We provide blended Jet A-1/SAF from 5% to 50% SAF concentration, with full sustainability certification documentation (CoC chain-of-custody, ISCC certificates) and carbon accounting reports.

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