The grid can manage electric cars. They can actually make the grid more stable since it's not difficult to ask the cars to slow their charging at certain times.

The grid can manage electric cars. They can actually make the grid more stable since it's not difficult to ask the cars to slow their charging at certain times. You don't even have to build this into the grid layer: just take these network connected vehicles and tell them to stop charging for 5 minutes out of the hour. You can even go so far as to have the cars soak up the capacity. If you have a 2kW capacity circuit in the house, you can have the car drop it's draw as the fridge compressor clicks in.