A nuke plant tripped because the cooling pump froze. As did at least one coal plant.
Nothing was hardened for cold weather. From the power plants to the water supply, to the sewer, to the houses nothing was hardened to survive cold weather.
The billion dollar question is do you build for the 50 year events or not? For me, and what I have input on in Texas, we will try to implement cold weather standards company wide. If we keep the plants, which after all the freeze damage may not happen.
I worked for TXU in insulation (IT side) in the early 1990’s. Back then it was the same as it is now, that that was right after the 1989 incident (people forget too about 1983).
We’ve closed so many lignite plants since then, and it’s moronic to burn natural gas for electricity. We have more coal than we can use. We need to use it.