Houston, TX - August 5, 2004 - The Board of Directors of Texas Genco Holdings, Inc. (NYSE:TGN), a majority-owned subsidiary of CenterPoint Energy, Inc. (NYSE:CNP), declared a quarterly cash dividend of $0.25 per share of common stock, payable on September 20, 2004, to holders of record as of the close of business on August 26, 2004.

Texas Genco Holdings, Inc., based in Houston, Texas, is one of the largest wholesale electric power generating companies in the United States with over 14,000 megawatts of generation capacity, of which approximately 2,500 megawatts are currently in mothball status. It sells electric generation capacity, energy and ancillary services in one of the nation's largest power markets, the Electric Reliability Council of Texas (ERCOT). Texas Genco has one of the most diversified generation portfolios in Texas, using natural gas, oil, coal, lignite, and uranium fuels. The company owns and operates 60 generating units at 11 electric power-generating facilities and owns a 30.8 percent interest in a nuclear generating plant. Texas Genco currently is a majority-owned subsidiary of CenterPoint Energy, Inc. For more information, visit our web site at www.txgenco.com.