E-Jet SAF FAQ
- Catalyst
- Apr 5
- 3 min read
Twelve's E-Jet® SAF is a breakthrough for powering sustainable aviation.

What is E-Jet SAF?
E-Jet® fuel is a Power-to-Liquid (PtL) sustainable aviation fuel (SAF), also known as eSAF, made from CO2, water, and renewable energy. It’s drop-in ready for existing aircraft engines and cuts lifecycle emissions by up to 90%, with lower sulfur dioxide, nitrogen oxides, and particulate emissions. E-Jet SAF meets the specifications of ASTM D7566 Annex A1.
Why choose E-Jet SAF over other SAFs?
Unlike biofuels, which are constrained by land use and deforestation risks, E-Jet SAF is electrochemically produced from CO2, water, and renewable energy. Compared to biofuels, it uses up to 1,000 times less water and 30 times less land, with up to 30% more reduction in lifecycle GHG emissions compared to bio-based SAF.
E-Jet SAF allows airlines and travelers alike to significantly decrease their emissions now without having to retrofit planes and supply chains.
What does E-Jet SAF cost?
Powered by clean energy, E-Jet® SAF will become cost-competitive with conventional, petroleum-based jet fuel once it reaches full scale.

Is E-Jet SAF in production?
In July 2023, construction began at Twelve’s AirPlant™ One facility in Moses Lake, WA. Once operational, it will be the first commercial-demonstration scale E-Jet SAF plant.
E-Jet production will start in 2025, with an initial capacity of up to 50,000 gallons/year.
How fast can E-Jet SAF production scale?
Twelve aims to produce millions of gallons per year by the end of the decade, partnering with airlines and corporate partners to use E-Jet fuel, E-Jet attributes or SAFc, and E-Naphtha-based chemicals.
What are the barriers to scaling?
Scaling requires access to affordable clean energy (solar, wind, hydro), biogenic or direct air capture CO2 sources, and innovative project financing partners to unlock the next generation of fuels to power the industrial transformation.
How impactful is E-Jet SAF?
E-Jet® SAF has far lower lifecycle emissions than other fuels.
Learn more: Know Your SAF: Guide to Sustainable Aviation Fuels.
Conventional jet fuel: 11.9 kg CO2e/gal
Alcohol to Jet (SAF): 3.3 - 8.8 kg CO2e/gal
E-Jet® SAF: 0.6 - 2.0 kg CO2e/gal

What is Twelve’s impact on global emissions?
Twelve’s carbon transformation technology has the potential to cut up to 10% of global emissions, including 50% of hard-to-decarbonize industrial emissions. At full deployment, it could address 2-3 gigatonnes of CO2 per year.
Who are Twelve's customers?
Twelve is proud to partner with Alaska Airlines, Boston Consulting Group, International Airlines Group, Shopify, and more.
Interested in partnering? Contact us here.
How can corporate customers purchase SAF credits from Twelve to offset operational/travel emissions?
Corporate customers can directly contact Twelve to purchase sustainable aviation fuel credits (SAFc) to offset their scope 3 emissions, i.e. operational and/or travel footprint. These credits are transferred to the customers once the E-Jet fuel that is associated with the credit purchase has been used by an airline. Alternatively, corporate customers can jointly purchase E-Jet fuel in partnership with any airline of their choice and retire the credits as needed. Twelve works with industry-leading registries like the Sustainable Aviation Buyers Alliance and the International Air Transport Association to transfer the credits to customers with lifecycle traceability.
Download Know Your SAF:
Guide to Sustainable Aviation Fuels
