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ERCOT: Rolling Blackout Threat Averted In Cold Snap

Justin Dehn, Texas Tribune
ERCOT says the threat of rolling blackouts were averted on Jan 6, 2014.

As chilly weather grips much of Texas, the state's electricial grid operator is asking consumers to reduce their energy use, though it says a brief threat of rolling blackouts has been averted. 

In an alert sent at 8 a.m., the Electric Reliability Council of Texas, which operates the grid covering 85 percent of the state, issued an emergency alert, meaning the grid's power reserves had dropped below a comfortable threshold. 

But the situation, ERCOT said, was improving.

Less than an hour earlier, ERCOT issued a "power warning," which is just a step away from rolling blackouts — controlled, temporary interruptions of power service — due to high demands that threaten to exhaust capacity. 

“We have brought on all available electric generation and have deployed all demand response programs that have contracted with ERCOT to reduce electric use in emergency situations,” said Dan Woodfin, ERCOT's director of system operations, in the latest news release. “Conditions appear to be improving at this time, and we do not expect to implement rotating outages this morning."

The scare was apparently caused by chilly temperatures across the state, which prompted consumers to ramp up energy use, said Robbie Searcy, ERCOT's spokesperson. 

It came amid aheated debate among state regulators and lawmakers about whether Texas should transform its wholesale energy market from an "energy only" to a "capacity market" — a shift intended to improve reliability that would potentially increase electricity rates. 

The last grid-wide blackout was in February 2011, when a deep freeze caused a large number of the state’s power plants to fail. Those blackouts generally lasted a few hours.

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