Siegfried Knecht
Chairman of the Board of Directors at aireg (Aviation Initiative for Renewable Energy in Germany), an NPO advancing sustainable aviation fuels since 2011.
1
APPEARANCES
1
PODCASTS
Jun 7, 2026
Siegfried KnechtGUEST
Well, to put it that way, SAF will also be more, always be more expensive than, than fossil jet.
Siegfried KnechtGUEST
So whether it's, you know, for the biogenic pathways, I would expect it being, um, a factor of two.
Siegfried KnechtGUEST
For, for eSAF, it would rather be a factor of five, six, if not-Date in the end.
Siegfried KnechtGUEST
However, you know, specifically airlines are always arguing with those dramatic figures.
Siegfried KnechtGUEST
If you bring it down to what the extra cost per, per seat or per passenger in an aircraft, be it an Airbus A320 or a Boeing, um, 737, it's not that, that much.
Ian WelshHOST
You've mentioned these again, some of these already, but just run us through the key feedstocks for sustainable aviation fuels.