Oh please don't misunderstand me: We will end up using solar (or wind, which is really just solar with an extra detour), mostly because we have about 4 orders of magnitude more energy available there than we need. I just wanted to put the (admittedly impressive sounding) number of 3,100 GWh annual battery production capacity in perspective.

And to further qualify that: The capacity is increasing rapidly (but we will need it)