Stopping right there, on your third point. How do you know that most of the load will be in the middle of the night? You said it yourself that the electric cars do not exist nor have been designed. How do you know what the practical recharge application will be? I think that there needs to be a clear delineation and understanding between PHEV and straight EVs with regards to how they will be used.

For electric cars to be a successful replacement of petroleum-burning cars, their recharge cycle will have to be user-friendly and the energy to be plentiful. That is, retail five-minute fast recharge stations. But that means recharging during the day. This will give consumers the range extension that PHEV owners take for granted. Range extension is necessary in a civilization that cherishes personal freedom of private transportation and urban sprawl.