grid storage could be decentralized, is Tesla's approach, apparently... big ol solar plus battery farm powers 5000 homes on an island in HI
there are powerful batteries in the cars now.... hmmmmm.... "neighbor could I borrow 50 miles worth of range from your Model S? I need hot water for a shower, and then I'll dry some clothes. I promise to give it back tomorrow morning"
still gonna take a while
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