SWISS signls long-term offtake agreement with Synhelion for solar jet fuel

In Switzerland, Swiss International Air Lines (SWISS) and Swiss cleantech company Synhelion have signed a long-term offtake agreement for sustainable aviation fuel (SAF). From 2027, SWISS will purchase at least 200 tons of solar jet fuel from Synhelion annually, pioneering the use of this innovative fuel in civil aviation. The agreement marks an important milestone on the road to more sustainable aviation.

SWISS is the first airline to sign a binding five-year SAF offtake agreement with Synhelion. This marks a pioneering step toward defossilizing aviation. From 2027, Synhelion will produce renewable synthetic crude oil, known as “syncrude”, at its first commercial plant. The syncrude will be processed in an existing refinery together with fossil crude oil and refined into certified Jet-A-1 fuel. Thus, Synhelion directly replaces fossil crude oil with sustainable syncrude, without the need for any adjustments to the existing infrastructure. The fuel will be delivered to the airport via the regular logistics chain and fed into the fuel supply system. Synhelion’s synthetic jet fuel is based on renewable energy and sustainable feedstocks.