edatoakrun said:
And where can you recharge a LEAF or any other BEV with a 12 kWh or 19 kWh on-board charger? Not using the J 1772 L2 network. So, we we should put a third charge port on every BEV, and another network of (less slow) AC stations in?
Why "reinvent the Wheel" by putting a (probably) less efficient and slower charger in each EV, when DC charging is faster and cheaper, when the cost is calculated over the entire fleet?
The J1772 L2 standard is, in fact, specifically designed for 19 kWh:
http://en.wikipedia.org/wiki/SAE_J1772
"round connector design by Yazaki which allows for an increased power delivery of up to 19.2 kW delivered via single phase 120–240 V AC at up to 80 amperes."
So, yes, the EVSE's would need 100 amp service, and the chargers on the car updated to 19.2kW.
The issue with 480 volts makes L3 quite limited to where it could be installed.