Just a comment on why Texas gas plants, booster stations, power plants couldn't handle the cold.
Years ago I worked in many of the West Texas Gas cleanup and booster stations,
at that time most of the transmitters and controllers where pneumatic and almost all of the valves where pneumatic operated.
The transmitters and controllers where in the process of converting to analog electronic.
There where attempts to use electric hydraulic and electrical control valves but they didn't work well.
The point being at that time all the instrument air systems had dryers with selectable dew points for the air.
Many where straight regenerative desiccant dryers some had a refrigerant pre dryer prior to the desiccant dryer.
The desiccant dryers worked well but required maintenance and periodic replenishment of the desiccant after a couple of years of regeneration.
Every single company has always cut cost especially in the maintenance area, maintenance is completely an expense to management,
it doesn't have a definitive payback period. Dry air isn't an absolute necessity till the temperature gets close to freezing.
When management gets told that so many thousands of dollars are needed to maintain a system that they have no knowledge of
and really don't care about they will cut those expenses as unnecessary and the bad thing about it is that so much mid level and almost no upper level
management has any knowledge of the maintenance and operational requirements of any plant or facility they manage much maintenance is cut,
because it does not have an immediate effect on the bottom line.
Instrument air has always been one of the early casualties of maintenance cuts. Once a pneumatic system becomes contaminated with water and or oils
it becomes very costly to clean up and dry out it can not be done over night.
It is not just Texas plants that are guilty of this, I have seen many Northern facilities do the same things and start fighting frozen pneumatic components
because some bean counter said we don't need -30F instrument air it only gets to -5 here and the system is allowed to deteriorate then when absolutely needed it fails.
But it's never managements fault.
Yes, this was one of my major aggravations when I was working and getting called out at 2 in the morning because a valve or controller wasn't working
because the plant wouldn't maintain the air system as it needed to be.
This was going on over 40 years ago and I doubt that it has improved much.