That doesn’t necessarily lead to a failure. In Texas a nuclear plant went down. About 1.2 (or 4 times that) GW (https://www.keranews.org/news/2023-06-22/with-te

That doesn’t necessarily lead to a failure. In Texas a nuclear plant went down. About 1.2 (or 4 times that) GW (https://www.keranews.org/news/2023-06-22/with-temperatures-soaring-and-a-power-plant-failure-texans-have-the-grid-on-their-minds https://www.keranews.org/news/2023-06-22/with-temperatures-s...). The grid stayed online. Likely thanks to grid batteries, see aforementioned link.