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@kravietz @cstross Aus? Wind and solar are anti-correlated. Their problem is finding new uses for midday excess solar. Buy electrons midday at negative price, sell evening at high price means net cost of storage is negative, ie profitable.

North America has enough metrological diversity that they can build a fat grid and transmit power across the continent for reliable cheap supply. But that would be unAmerican so it's lots of regional batteries. 2/3