Ah for the days when electricity was becoming too cheap to meter.
https://en.wikipedia.org/wiki/Too_cheap_to_meter
Predictions are hard, but the energy in a couple of jerry cans still takes a heck of a lot of battery power. Let alone A380s.
I think there are some great changes to come in light aircraft design in particular now that the electric engines are so small and light and the fuel (ie batteries) can be located wherever you want and won't change the C of G as the power is "consumed".
But sitting on the terrace at Atlanta airport a few weeks ago looking at the sheer number of flights taking off and the huge fuel compound, I didn't feel a need to rush to my broker and dump my Shell shares.
(old stock market adage: Never Sell Shell)