[londons_explore]

It could not.

However, a household supply could supply substantially more with smarter software. Specifically, currently we rate power supplies with a decent safety margin for worst-case conditions.

However, your '100 amp' power supply can probably supply 200 amps on a freezing cold day (which helps keep cables cool). It can probably supply more than rated if your neighbours aren't using much (since your and your neighbours power connections may share cables).

If you or your neighbours have rooftop solar, thats power going the other direction, which cancels out some power use - allowing you to charge even faster.

If software could take these factors into account, we could get a lot more power to where it needs to be. Currently rules don't allow such things though.