I work on those cancer causing windmills. Any site that has any type of winter orders cold climate options on their turbines, just like people customize their vehicles. Obviously, TX wasn't expecting a winter like this, so they didn't opt for the cold climate upgrades (blade heaters, cabinet heaters, wind vane heaters, etc.). Now, a lot of these sites will probably start retrofitting this stuff, and it's gonna cost them a helluva lot more than it would have had they not gambled on their long-term weather forecast.