In America, most houses have some 220, intended for a clothes dryer and perhaps an oven or air conditioning. For a Tesla, a standard 110v circuit charges at 3.

In America, most houses have some 220, intended for a clothes dryer and perhaps an oven or air conditioning. For a Tesla, a standard 110v circuit charges at 3.5 mph; 220 is 2x or 4x depending on the amperage of the circuit.