[jhgb]

Batteries are not supposed to solve the large scale storage problem. They're best at solving the small scale storage problem. Recently they solved the problem of small scale storage on wheels.

> If battery technology improves to the extent that it becomes viable for large scale storage, then wind and solar can become our main source of energy.

Batteries are not the only way of storing electricity.

[craftinator]

First thought I had here was hydroelectric storage.

[jhgb]

Especially after that prospective sites research by the Australian National University (https://www.anu.edu.au/news/all-news/anu-finds-530000-potent...), that seems like a reasonable choice.