Batteries are ~30% efficient. Sending power to end users is ~85-90% efficient (though less, of course, if there's overcapacity, and then it drops very fast). S

Batteries are ~30% efficient. Sending power to end users is ~85-90% efficient (though less, of course, if there's overcapacity, and then it drops very fast). So let's say you'd get 30% * 85% ^ 2 ~= 20% efficiency out of it. If you're talking Australia. Outside of CBDs, why would you so much as bother with a grid connection at all ? Solar panels + a solar boiler + in-house batteries will probably be about as reliable as grid power in Australia. Plus it'd be truly distributed. What we need is a Solarcity company in Australia. (Or, Australia has uranium mines ... why not go nuclear ? Fuel is free)