[cynwoody]

You can calculate recharge rates based on the 50 KWH.

50kwh in five minutes implies at least a 250kw power supply. That's well over a thousand amps at 220v. I think you'll need new wiring (along with the neighborhood).

I'm not an electrician, but I think you could do it overnight with a normal 220 circuit, however.

[cynwoody]

50kwh in five minutes implies at least a 250kw power supply.

Oops, my arithmetic is off. That should be 600kw, not 250, to deliver 50kwh in a twelveth of an hour. And that assumes 100% efficient charging.