[Qwertious]

Or batteries.

Batteries have huge potential, simply due to the fact that they're so broadly defined - must store energy, output it as electricity on demand, and be cheap. There's a high chance that we find some way to make grid-scale batteries extremely cheaply, in the future.

In the mean time, getting to 90% will basically stop climate change in its tracks, giving us time to research dirt-cheap batteries.

[bialpio]

It doesn't even have to always be electricity on demand, sometimes we also need heat. I wonder if heat storage will be a thing we'll have in the households (or maybe it's enough to have it in district heating facilities?).