Second Airtricity Contract Increases Renewable Leader's Purchases to 914 MW DALLAS, May 15 /PRNewswire/ -- TXU Wholesale, a subsidiary of TXU Corp., announced today it has increased its portfolio of wind power contracts with a 209-megawatt (MW) agreement with Airtricity, a world-leading renewable energy company based in Dublin, Ireland. Under terms of the five-year contract, Airtricity will provide the wind power generated by its Roscoe Wind Farm, currently under construction about 45 miles southwest of Abilene in West Texas. The project, Airtricity's third in Texas, will use 209 1-MW Mitsubishi 1000A turbines. "We're proud of our position as the No. 1 purchaser of wind power in the state of Texas, and this contract only solidifies that," said Mike McCall, chairman and CEO of TXU Wholesale. "We are well on our way to more than doubling our wind power purchases to 1,500 MW and increasing our investments in alternative energy, as announced as part of our merger agreement with Texas Energy Future Holdings Limited Partnership." The contract is TXU Wholesale's second with Airtricity and will boost TXU's renewable energy portfolio to 914 MW from 965 wind turbines. TXU Wholesale's other contract is for 125 MW from Airtricity's recently opened Forest Creek Wind Farm 25 miles southeast of Big Spring, Texas. "Airtricity is playing a leading role in helping Texas and America meet its fast-growing energy needs," said Airtricity North America CEO Declan Flanagan. "As electricity demand and natural gas prices continue to rise, policymakers and businesses like TXU are seeing the benefit of tapping into Texas's vast wind energy resource." The Roscoe Wind Farm will stretch into three West Texas counties and will cover nearly 30,000 acres when it is completed. The project, which is scheduled for completion by the end of the year, will produce enough power annually for 60,000 homes and save approximately 375,000 tons per year in greenhouse gas emissions. About TXU TXU Corp., a Dallas-based energy company, manages a portfolio of competitive and regulated energy businesses primarily in Texas. In the competitive TXU Energy Holdings segment (electricity generation, wholesale marketing and retailing), TXU Energy provides electricity and related services to more than 2.1 million competitive electricity customers in Texas. TXU Power has over 18,100 MW of generation in Texas, including 2,300 MW of nuclear and 5,800 MW of coal-fueled generation capacity. TXU Wholesale optimizes the purchases and sales of energy for TXU Energy and TXU Power and provides related services to other market participants. TXU Wholesale is the largest purchaser of wind-generated electricity in Texas and fifth largest in the United States. Power generation and related businesses, such as TXU Power and TXU Wholesale, plan to transition toward the new Luminant Energy brand. Visit http://www.txucorp.com/ for more information about TXU Corp. About Airtricity Founded in 1997, Airtricity is a fully integrated renewable power company with 455 MW of wind projects in operation, a further 1,400 MW planned to be in operation by early 2009 and a project development pipeline in excess of 10,000 MW. Airtricity has over 360 employees globally organized in three core business units: Europe on-shore, Europe off-shore and North America. Airtricity also operates a retail supply business in Ireland supplying 35,000 commercial customers with renewable power. Airtricity North America, headquartered in Chicago, initiated its wind power development activities in the U.S. in 2003 and Canada in 2006. Currently, Airtricity North America has completed construction of 214 MW with a further 370 MW under construction and 706 MW in final-stage development backed by firm orders for turbines for delivery in 2008 through early 2009. With an additional 6,500 MW under development, Airtricity North America is well positioned to capitalize on the significant growth of wind power in the U.S. and Canada. Airtricity North America has offices in Chicago, Austin and Toronto. DATASOURCE: TXU Wholesale CONTACT: Tom Kleckner, Media Relations, +1-214-812-3206, for TXU holesale Web site: http://www.txu.com/

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