You missed a key point that was crucial in what is basically a cascading failure:
Texas (like other states) relies on gas plants for electricity plants (about half of them) and is also a gas producer. The increased demand on gas because of people heating their homes contributed to shortages. This then leaad to issues with gas production sites in texas that need power. This was then aggravated by pipes icing up (water vapor in the gas). That's a cascading failure. Wind power was also affected of course but not nearly as much as the gas supply issues.
Texas needs to reconsider its over-reliance on gas and diversify its grid. Ice proofed turbines are a thing. Solar is still a relatively minor part of production in what is obviously a state that has plenty of potential for that.
Additionally, it should strongly consider connecting to the rest of the country. If only to enable the export of the ample supplies of wind and solar it can produce normally. It's just good business sense. Then, it should probably start incentivizing people more to do sensible things like putting solar on their roofs, installing batteries in their homes, insulating their houses, and consuming off peak power (e.g. by charging their EVs). All these things collectively should make blackouts a lot less likely.
The business case for Texas's separate grid is local control, so connecting to the other two grids (it's not really accurate to say "the rest of the country") could present some real practical difficulties.
It's interesting to read your proposals because of the eco-targeted nature of them; but I think most Texans are going to interpret this differently. Forget batteries and solar panels; they're going to get generators and use diesel.
Texas (like other states) relies on gas plants for electricity plants (about half of them) and is also a gas producer. The increased demand on gas because of people heating their homes contributed to shortages. This then leaad to issues with gas production sites in texas that need power. This was then aggravated by pipes icing up (water vapor in the gas). That's a cascading failure. Wind power was also affected of course but not nearly as much as the gas supply issues.
Texas needs to reconsider its over-reliance on gas and diversify its grid. Ice proofed turbines are a thing. Solar is still a relatively minor part of production in what is obviously a state that has plenty of potential for that.
Additionally, it should strongly consider connecting to the rest of the country. If only to enable the export of the ample supplies of wind and solar it can produce normally. It's just good business sense. Then, it should probably start incentivizing people more to do sensible things like putting solar on their roofs, installing batteries in their homes, insulating their houses, and consuming off peak power (e.g. by charging their EVs). All these things collectively should make blackouts a lot less likely.