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by sbalea 1839 days ago
My house has 100amps service and I was able to install a 14-50 outlet (240V/50amps) which allows me to charge at sustained 32amps. It all depends on what other load do you need to handle, for me the only other significant load was the A/C, everything else is gas powered. Don't even have to go that high, even a 240V/30amps outlet (24 amps sustained) will still charge a car in a reasonable amount of time. Keep in mind that you will rarely need to charge from 0 to 100%, most of the time will be a fraction of that. For me it's usually 70% to 90%, but, of course, YMMV.