You may pretend, of course. But any solar farm producing enough power to be a "problem" may simply be shut off. And, an occasional excess, a few hours in a few

You may pretend, of course. But any solar farm producing enough power to be a "problem" may simply be shut off. And, an occasional excess, a few hours in a few days out of each month is not the same as enough to usefully charge storage. Also: 2017.