...and this at the link...
https://graphics.texastribune.org/graphics/power-outage-2021-02/
Sorry I can't figure out how to display that one...
You have undependable subsidized green power making up a significant portion and then gas being the quick uptake power base but without all weather capability due to low storage (well heads too nearby) and no systems to keep freezing temps from impacting its transmission systems. Coal and nuclear dropped due to water cooling systems being impacted as well.