Read on Twitter
Give a shout out to the operators at Comanche Peak- one of 2 nuclear plants in TX. They're keeping power flowing to the grid during this emergency. https://twitter.com/Orano_usa/status/1361323025627496450
Most of the power supplied to the grid in TX is produced by Gas-CC plants. They dominate, producing as much as wind farms & coal plants combined.
But... there's a problem. And yes we knew it (hint: this article is a decade old). Gas-CC plants need to get prepped for extreme cold. We have them in MN! But retrofit is expensive & the major draw of Gas-CC plants is that they're cheap. http://www.powermag.com/prepare-your-gas-plant-for-cold-weather-operations/
Demand is also unusually high during extreme weather events- duh. But this is a textbook case for not letting any grid be dominated by a single energy supply source. Btw, wind farms in El Paso are also down due to the freezing rain. http://www.statesman.com/story/news/2021/02/14/historic-winter-storm-freezes-texas-wind-turbines-hampering-electric-generation/4483230001/
Allll of this thread is to say- a diversified grid allows you to cope with extremes. Nuclear energy policy wonks need to get on board w/reprocessing & forging relationships w/renewable energy. Tagging @NuclearBryan just bc I can 
