A couple of things I wanted to add about the power grid failures. I work in an industrial facility. It’s not a power plant, but very similar. We have fired equipment, generate steam, use boiler feed water, etc. Our equipment has a design temp that is spec’d when we built the plant. So much degrees for so many hours/days. We have heat tracing and insulation etc according to these specs. This is a billion dollar facility built in 2015, but all the plants are similar.
I think our plant was specd to run at 18 deg F for 24 hours. The lower the spec, the more expensive it is to build, run, and maintain. When you insulate things you get cui, known as corrosion under insulation. You have to strip the insulation off for maintenance, etc.
Not only could we not run, we ran out of nat gas. We froze anyways. We recorded temps down to 12 deg F for days. I’m not sure if the power plant located on-site was able to run or not but I think they had to shut down as well.
Just not designed to run in weather that cold.