How is that relevant? The article was an economic comparison, not an ecological one.
For an ecological comparison half the numbers. Synthetic fuels are only twice as expensive as fossil jet fuel which should mostly be caused by the needed energy.
By 2019, fossil jet fuel production cost was $0.3-0.6 per L given a $50–100 crude oil barrel, while aviation biofuel production cost was $0.7-1.6, needing a $110–260 crude oil barrel to break-even.
How many electrical planes have you seen?
Four. The only one I’ve seen with more than one seat had an endurance aloft of 50 minutes at 100 knots indicated.
How is that relevant? The article was an economic comparison, not an ecological one.
For an ecological comparison half the numbers. Synthetic fuels are only twice as expensive as fossil jet fuel which should mostly be caused by the needed energy.
https://en.m.wikipedia.org/wiki/Aviation_biofuel#Production