There lies the problem with the Left and renewables - they just don't get the economics of renewables.
A Tesla power wall would run my air con for perhaps 2 hours - at the very best - that is if there is enough excess output from my 6kW system to charge the battery - every day (there ain't).
I predict we will be back on coal soon and thereafter nuclear - the chickens are coming home to roost for the loony left.