TexasCHLforum.com

Network news is saying the root cause was that two, coal-fired, electricity generating plants in north-central Texas had frozen/burst water pipes overnight, and David Dewhurst had to order ERCOT to enable the rolling blackouts to prevent a major, prolonged outage. Seems most blackouts stopped after 1:00 p.m. or so, but it is "possible" we could continue seeing rolling blackouts through tomorrow afternoon.

No answer as to why power generating plants couldn't protect their water pipes down to a measley 18 degrees. What do plants in North Dakota do? Tell 'em we had two plants go off-grid because the temperature dropped below 20 degrees, and they'd probably just stare at you in disbelief...