Comment by margalabargala

The land available for solar and wind is immense, especially because wind can be put in the ocean. The land required for batteries is tiny, especially compared to a nuclear power plant.

The challenges are going to be political, not spatial or geographic. China could put enough solar panels in its western deserts to power the whole country. The US could do the same in its southwest. It would take about 15% of the land area of Arizona to power the entire US.

That's physically achievable but politically difficult.