[ncmncm]

Nukes are not the solution because they are mature tech. They are very expensive, always have been, always will be. Nuke plants have to be big to be worth building, but like any big public works project, they attract corruption. Most of the price of a typical nuke plant in the US is (100% legal!) graft. That won't change either. It takes many years to build a nuke plant because nobody involved wants the gravy train to stop. Finishing means it stops.

(A fusion plant would need to be enormously bigger than any fission plant, so would attract enormously more corruption, and probably never be finished.)

Solar and storage prices are still in free fall. Battery tech optimized for utilities rather than phones and laptops is coming to market at 1/3 of lithum's price, and will fall from there.

There is no lower limit on useful size for solar. It can start producing useful power immediately while you add capacity. It is more valuable with storage, but works without. The more storage you add, the better it is, but even a little storage pays for itself immediately.