[castis]

Whats the problem with electric aviation?

[drexlspivey]

Batteries are much heavier than fuel

[regularfry]

That's part of the problem, as is the fact that batteries don't get lighter through the flight. The energy infrastructure on the ground is the thorny bit, though.

[regularfry]

Getting enough energy into enough planes fast enough at enough airports to make a dent. As a guide to the order of magnitude of the problem, consider that a 747 needs roughly 100MW to stay airborne.