Something else to be considered is that the power grid is not capable of distributing the total power produced. Every power transmission method uses some power for ever inch of distance the power travels.
I run a 4 megawatt back up facility that has the sole purpose of providing power to a 40 acre compound. I have significant losses getting the power across a street, let alone distributing it nationally. Not to mention that my main battery bank is a thousand batteries that cost three thousand each, that three million dollars for a bank that can produce 2.5 million Watts for "8 Minutes".
Futher power isn't like water, you cant just dump it on the grid, if the source is out of phase, under or over voltage, or insufficiently coupled (badly connected) your power source can dump the grid, and cause the safety trips to open blacking out all your users. In Texas the grid has been dumped at least once because a wind farm "ran a way" and dumped an enormous surge to the grid, all of Europe was blacked out at least once for the same reason.
So the question is where does the money come from to rebuild our grid? And who is going to force the thousands of individual owners to do it?
Regards,
Kevin