The Texas issue is multifactorial. The grid system is not tied to any other state. They are definitely the lone star state tho surprisingly they are tied to Mexico's grid. In other regions, these interconnects help neighboring states and smooth out highs and lows. #polarVortex https://twitter.com/carljstone/status/1361495800220639233

There is also higher demand than the grid was planning for this time of year. I believe nearly 70GW demand is what they were expecting in 2026-2027 not today. https://twitter.com/JesseJenkins/status/1361351680399302657

The cold weather has driven high demand for gas for heating during this time. The electrical grid is reliant on that gas to power businesses and homes. At 10am EST yesterday 50% of all gas generators are down through out the state. 42% of their generation was offline!

Gas pipelines are also reported down as well, which is further exacerbating an already serious problem for heating and power. Most homes won't heat without power, so the problem might even be worse if the power was on for blackouts.

As for frozen wind farms, Bloomberg reports that winter wind is lower and was not expected to produce its peak. They are also reporting "Even so, wind generation has actually exceeded the grid operator’s daily forecast through the weekend." https://www.bloomberg.com/news/articles/2021-02-16/frozen-wind-farms-were-just-a-small-piece-of-texas-s-power-woes

Additionally for those in the northern latitudes, wind turbines can operate at temperatures lower than -4 F (-20 C) so we'll have to see what sort of weather fitments Texas' operators did to plan for poor weather. https://twitter.com/DrEricDing/status/1361626388550279169