My assumption is that most of the charging for electric vehicles (aside from stopping at a supercharger) will go on at night which is off peak for our grid now.

My assumption is that most of the charging for electric vehicles (aside from stopping at a supercharger) will go on at night which is off peak for our grid now. At least for the short term future. I don't know that solar will help in that case. The adoption of electric vehicles seems to be slow enough that it should give us time to identify the problems and attempt to come up with solutions. That rate could significantly increase if the model 3 delivers on it's promises. It probably still take major investments in our electrical infrastructure to support a majority of vehicles becoming electric.