Well right now you can charge that Tesla pretty fast. If we all had Teslas that might not be so easy. No way do we have the electric capacity to charge all the cars once we get to even just a few percent more. We will need to install solar panels at a huge rate to service most of us and depend on a larger supply train to China. That's assuming we can even get the raw materials for the needed batteries.

Once a significant fraction goes to EVs, expect that you will need an authorization code to charge your vehicle, even with your own solar panel power. The car won't function without that code to collect the road taxes due. Don't pay your taxes, your car won't run. Auntie Jane will will know what you are up to as reported by your car.