Further thoughts on energy density:
- Jet Fuel energy density: ~12,000 Wh/kg 
- Batteries energy density: ~500 Wh/kg 
- Electric Motors efficiency: ~85-90%
- Jet engine efficiency ~30-40% 

So batteries at 1,000-2,000 Wh/kg starts to be competitive with Jet Fuel, and would really start to surpass it at 5000 Wh/kg

creating and destroying; built flying cars & autonomous vehicles, now building /faust, more here: /july, web: july.rocks

I've always wondered this. Does it matter what kind of jet fuel? Like some of them airlines are doing biofuels, what kind of watt hours difference is seen from those?

500 $DEGEN