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AUSTIN, TX, Aug. 10, 2015 – For the first time in this grid operator’s history, hourly demand within the Electric Reliability Council of Texas (ERCOT) system today broke the 69,000 MW threshold, with peak demand for electricity reaching 69,783 megawatts (MW)* between 4 and 5 p.m. and 69,408 MW between 3 and 4 p.m.

“The ERCOT system has been performing very well through the triple-digit temperatures we’ve been experiencing,” said ERCOT Chief Operating Officer Brad Jones. “Today is no exception as operating reserves remained above 3,000 MW throughout this record peak.”

The previous record of 68,912 MW lasted just four days before being bested by Monday’s new all-time high. The system also broke its previous all-time weekend record during six operating hours this past weekend, with demand during the 4-5 p.m. hour on Saturday, Aug. 8, setting the new weekend record of 66,587 MW. One MW is enough to power about 200 homes during periods of peak demand.

“Demand is expected to remain high until temperatures begin to break at the end of the week,” Dan Woodfin, ERCOT director of System Operations said. “Our focus continues to be on ensuring we maintain overall reliability and protect the grid while having sufficient generation in place to meet demand.”

As this week progresses, ERCOT Meteorologist Chris Coleman anticipates temperatures throughout the ERCOT region will drop slightly. See his weekly forecast here and an updated seasonal forecast here.

Wind generation contributed between 2,000 and 2,400 MW from installed capacity of more than 13,000 MW during today’s peak.

Consumers can monitor ERCOT system conditions at www.ercot.com or through the ERCOT Energy Saver mobile app, available free for Apple or Android devices.

Previous All-Time Peak Records*

69,783 MW — Aug. 10, 2015

68,912 MW — Aug. 6, 2015

68,459 MW — Aug. 5, 2015

68,305 MW — Aug. 3, 2011

67,929 MW — Aug. 2, 2011

The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to nearly 24 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 43,000 miles of transmission lines and 550 generation units. ERCOT also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for more than 7 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.

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