> With grid-scale solar and batteries (Chinese production is driving prices down aggressively) you can spin up gigawatt-scale plants almost overnight, until you can cover the shortfall with nuclear or thermal plants.

Can you show an existence proof of someone spinning up gigawatts of energy overnight?

And solar doesn't help with night time and batteries haven't hit giagawatt scale yet, you might be a bit over your skiis with your claim here.