Fredneck
Member
You seem to be saying "it would just be a drop in the ocean so it's not worth doing".
I'm not arguing for PowerWall (I won't be buying one any time soon). But I think it's pretty well understood that we need to even out the load to fully get rid of Coal and Gas. That requires storing either electricity or energy that can directly and quickly generate electricity.
My understanding of those giant batteries is that they pay for themselves in ridiculously short timeframes (for the size of the investment).
Someone in another forum who lives in Australia and keeps on top of these things has listed significant data for the very large power wall Musk installed for line regulation in South Australia about two years ago. The cost was $66 million and I believe it has already recouped that or nearly that much by reducing the cost of peak power and preventing blackouts. There was a blackout during a record heat wave so now they are increasing capacity of the battery by 50%. Money well spent.