Could this have anything to do with Texas being overly dependent on wind turbines to generate electricity? In February 2008 rolling blackouts were narrowly averted in Texas when a weather front idled most of the states wind turbines. Wind turbines cannot adequately meet peak needs as enough winds may not be blowing when there is high demand.
From what I’ve read, no peak load capabilities even include wind power, because of inconsistent output.
As a matter of interest, Machine Design (an engineering trade pub) has run analyses showing that wind turbines may actually produce NO net power at all when the entire system is analyzed.