"Renewable energy in transport" report by IEA (.PDF)
https://www.iea.org/media/training/presentations/Day_2_Renew...
I think that "power to liquids" is a much more likely path for large scale replacement of aviation fuel.
See for example "Power-to-Liquids as Renewable Fuel Option for Aviation: A Review"
https://onlinelibrary.wiley.com/doi/pdf/10.1002/cite.2017001...
The main problem with biomass is land requirements. You can get a little biomass "for free" just by using scrap from existing industries, but it rapidly runs into problems of land availability if you want to make enough carbon-neutral fuel for the world's commercial airlines. There's more than an order-of-magnitude improvement in usable power density if you replace biofuel plantations with an equal area of solar farms for making electrolytic hydrogen from water, plus a synthesis/refiner complex for hydrogenating CO2 and building up liquid hydrocarbons from the resulting methanol. It's also a lot less water-intensive and doesn't require any fertilizer.
And in the worst case there are always biofuels or synthetic non-fossil liquid fuels, which are a lot more carbon neutral after you convert the energy that goes into their production away from fossil sources.
But if you’re talking about plug-in electric, the challenge is presumably battery weight versus fuel weight.
If we can cut 98% of emissions we'll be fine. 2% is not worth worrying about. While it may be a sexier engineering problem reality is ground transportation isn't close to being solved.
Gas cars still have huge momentum and infrastructure advatanges. No electric cars is being targeted for the mass low end demographic. We need the Honda civic of electrics.