That's not a huge deal either, really. In time, more and more parking spots will have charging ports. The fact that they aren't all used all the time will act

That's not a huge deal either, really. In time, more and more parking spots will have charging ports. The fact that they aren't all used all the time will actually make it easier to manage the grid loads. Imagine you park your car and let either the car or the charger know you aren't moving the car for 2 or 3 days. It can use that knowledge to delay your charging until local demand is lower, or power is cheaper.