One of the challenges facing all-electric vehicle transportation is the electrical infrastructure need to support rapid recharging of electric cars. Residential power circuits commonly supply alternating current (A/C) with maximum residential voltage of 220 Volts, and with maximum current of approximately 20 Amps. A gallon of gasoline contains roughly 125 MJ of energy when burned. How long would it take such that the electrical energy stored in an electric car battery would be equivalent to the chemical energy of 20 gallons of gasoline?