That was another part of what I was getting at when I said that I was handwaving around some issues. :) In much of the US, net metering is currently available,

That was another part of what I was getting at when I said that I was handwaving around some issues. :) In much of the US, net metering is currently available, so it isn't really a problem for the consumer in those places. On average, a US home consumes ~30KWh per day. A single Tesla P100D has a 100KWh battery. It isn't hard to imagine ways to shift the charging profile towards the day for a lot of people.