Question regarding Texas power failure

One of my good friends is a somewhat moderate liberal and really the only person on the other side of the political aisle who I care to engage with, typically. Most of our conversations result in civil discourse, with both of us trying to learn and see different perspectives. Of course, we throw jabs at each other and at each other's political affiliations.

He recently moved to Dallas, so yesterday I texted him to see how they were holding up, with a somewhat facetious and sarcastic message that read
"interesting how global warming/mother nature doesnt give a f*ck about our green energy"

The response: "Interesting how the largest electrical failure in the past 30 years of Texas comes after a few wealthy families who came together to deregulate the electrical grid, supported some of those "green" initiatives, and now have millions without power, while price gouging millions because they wanted the Fed Gov out of Texas. But now are asking the Fed Gov/FEMA to act and give them billions in recovery. Oh how the world turns"

My question is, what the hell is he talking about? I asked him to elaborate but I got nothing. So then I said "Which Republican families are at fault for the worse winter storm in a century?" Again just jabbing and trying to provoke an answer, which I never got it.

So, what families is he talking about and what did they do? Or is this just another left wing media talking point that he read somewhere and is regurgitating it? Genuinely curious.

I know, CSB, wall of text, etc.