It looks like there is 1.5 fold the energy being generated than two weeks ago.
Why are there power outages?
Way more than a 1.5 fold increase in the demand for energy with these kinds of temps. Having the heat going full blast for hours on end day after day to fight single digit temps is not a normal Texas phenomena.
Supply vs demand.
When it gets cold, demand skyrockets because people want to heat their homes.