I thought it was obvious, but in a world where most people have solar battery setups, peak demand occurs after 2-3 days of cloudy weather, and stays consistently high 24 hours a day until the sun comes out. The rest of the year the grid is pretty much idle.
I don't believe I'm moving any goalposts. From the first paragraph of my original comment:
> Imagine a world where everyone in the state has an overbuilt solar battery system installed, but still relies on the grid those few times a year with extended cloud cover.