I ordered my first Tesla last week (P100D ), and am thinking about my charging setup in my garage. I currently have a J1772 EVSE for my Leaf that ouputs 7.2kW on a 40 amp circuit breaker. I can't go higher than a 45 amp circuit breaker without having to upgrade my whole electrical box ($$$$), so as far as I can tell my options are as follows: Keep my current setup and just use the J1772 adapter to charge the Model S on my existing EVSE. Based on the manual for my EVSE (confirmed by the Tesla home charging consultants), that would add range at the rate of about 22 miles/hr of charging. or Upgrade the circuit breaker to a 45 amp circuit and install a Tesla Wall Mount which can be set to recognize a 45 amp circuit breaker. Tesla's charging consultant tells me that this would give me 8.6kW and about 26 miles/hr of charging. In order to do this I will need to hire an electrician to upgrade the circuit breaker and install the Tesla Wall Mount, so probably about $750 - $900 including the cost of the circuit breaker and wall mount and labor for the installation. Are there any better options I am not thinking about? Does anyone think the additional 4 miles/hr of charging I would gain by installing the Tesla Wall Mount is worth the additional cost?