> Because if the vehicle can do the miles, that's all that matters.

Unfortunately that's probably going to stay fossil for a while. What might matter is things like local ordinances prohibiting it on AQI grounds (especially things like leaded fuel in Cessnas!), as well as more dramatic questions like shortages.

(we're probably never going to get a carbon tax on jet fuel, too much coordination required)

You are ignoring the second variable on the consumption of energy dense materials. Weight.

It correlates to the energy density of course, but, weight directly goes into the power consumption calculations for vehicles. Efficiency is just a multiplier afterwards.

You can only ignore weight in non-mobile battery applications, i.e. grid applications.

It is a multi-variate problem and petrol currently wins out by a wide margin.

>Comparing battery energy density to fuel energy density usually ignores the fact that combustion engines aren't that efficient.

>>Jet-A has a much lower conversion to useful work than a battery