>As I said before, if it works a hundred year battery
would make electric cars feasible.
>But, using parked cars as part of a 'distributed storage
system' - is a BAD idea.
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I, personally, would want to usually be using my own on-site power. A hundred-year battery would allow me to do that.
Being connected to the grid is something I would want to use sparingly, or during an emergency.
Of course, adding hardware so “the grid� could never siphon off your car battery power against your rules would be both necessary AND trivial to add.
Right now, my ideal system would keep me 100% isolated from the grid unless and until my PV + battery power fell uncomfortably low. I'm not a communist, after all. If I am “selling� my power off my battery, I would expect a significant personal profit from the transaction.
I'm glad you see the potential huge value in a 100 year battery.