The first time I went to Texas was 09 December 1980, the day after John Lennon was killed. When we took off from Toronto, it was 36°F outside. When we landed in Fort Worth, it was 43°F outside. When I asked one of the project people (we were visiting General Dynamics on Carswell AFB) about how we could fly south 1100 miles and get almost the same weather, he said, "There's nothing between Fort Worth and the North Pole but a barbwire fence." Still, I liked what I saw of Texas winters - the morning starts off a few degrees above freezing but by the afternoon, it was in the mid 60's F.
Some egregious mistakes were made in Texas. Its power grid is completely independent - it is not connected to any other grid. Here in Ontario, if we have a shortfall, we can buy power from Hydro Quebec or Manitoba or New York. Texas can't do that.
A lot of Texas power comes from wind turbines and they can be optioned to work in any climate. Texas didn't buy the gearbox heater option or the rotor blade de-icing options and you can't turn a rotor if there are unbalanced ice loads or the vibration would tear the bearings right out of the gearbox.
Since power is off to a lot of houses, water pipes have frozen and once the thaw comes, there will be a huge mess of burst pipes to clean up.
There have been a number of fatalities from carbon monoxide poisoning due to people trying to get fireplaces working or run generators inside the house.