Market Information System Grid and Market Conditions

News Release

February 02, 2011

Power Emergency Update -- 9:59 am

Mid-morning update: 9:59 am

Last night around midnight, the ERCOT grid began experiencing numerous forced outages of generation due to the cold weather. As of 9 am, more than 7,000 MW of capacity was still out of service or not producing at its expected level.

Rotating outages were implemented around 5:30 a.m. this morning to shed 4000 MW of load. The rotating outages are continuing as this time, although the amount has been reduced to about 3000 MW.

We expect the rolling outages to continue until a sufficient amount of generation is back online. We are continuing the appeal for energy conservation.

Further updates will be provided when additional information is available.

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The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to more than 26 million Texas customers -- representing about 90 percent of the state’s electric load. As the independent system operator for the region, ERCOT schedules power on an electric grid that connects more than 46,500 miles of transmission lines and 710+ generation units. It also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for nearly 8 million premises in competitive choice areas.

ERCOT is a membership-based 501(c)(4) nonprofit corporation, governed by a board of directors and subject to oversight by the Public Utility Commission of Texas and the Texas Legislature. Its members include consumers, cooperatives, generators, power marketers, retail electric providers, investor-owned electric utilities, transmission and distribution providers and municipally owned electric utilities.