Luminant Helps Power Texas Through Energy Alert on Second ERCOT Record-Setting Demand Day

Dallas -

Luminant's fleet of nuclear, coal and natural gas power plants helped power Texas through today's ERCOT energy emergency alert, which occurred on a second consecutive day of record-setting demand. All of Luminant's power plant units were available for generation and the company took the necessary steps to maximize generation through the day's record high temperatures.

During the peak, the company was generating 13,500 megawatts of capacity and made available roughly 500 additional MWs through tolling arrangements.

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About Luminant

Luminant, a subsidiary of Energy Future Holdings Corp., is a competitive power generation business, including mining, wholesale marketing and trading, and development operations. Luminant has more than 15,400 megawatts of generation in Texas, including 2,300 MW fueled by nuclear power and 8,000 MW fueled by coal. The company is also the largest purchaser of wind-generated electricity in Texas and fifth largest in the United States. EFH is a Dallas-based energy holding company that has a portfolio of competitive and regulated energy subsidiaries, primarily in Texas. Visit www.luminant.com or www.energyfutureholdings.com for additional information.

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