HOUSTON, Jul 27, 2004 (PRNewswire-FirstCall via COMTEX) -- CenterPoint Energy, Inc. and Texas Genco Holdings, Inc. will jointly host a live webcast of their second quarter 2004 earnings conference call on Friday, August 6, 2004 at 10:30 a.m. Central time / 11:30 a.m. Eastern time. Consequently, Texas Genco has cancelled the conference call webcast it had previously scheduled for August 6, 2004 at 9:00 a.m. Central time, or 10 a.m. Eastern time. The information for the joint webcast is as follows:

What:     CenterPoint Energy and Texas Genco Second Quarter 2004
             Earnings Conference Call Webcast

   When:     Friday, August 6, 2004 at 10:30 a.m. Central time /
             11:30 a.m. Eastern time

   Where:    http://www.centerpointenergy.com/investors/events or
             http://www.txgenco.com/Investor.html
             Click the link, "CenterPoint Energy, Inc. and Texas Genco
             Holdings, Inc. Second Quarter 2004 Earnings Conference Call
             Webcast"

   How:      Live over the Internet -- Simply log on to the web
             at one of the addresses above.

   Contact:  Marianne Paulsen  (713) 207-6500

CenterPoint Energy, Inc., headquartered in Houston, Texas, is a domestic energy delivery company that includes electric transmission & distribution, natural gas distribution and sales, interstate pipeline and gathering operations, and more than 14,000 megawatts of power generation in Texas, of which approximately 2,500 megawatts are currently in mothball status. The company serves nearly five million metered customers primarily in Arkansas, Louisiana, Minnesota, Mississippi, Oklahoma, and Texas. Assets total over $21 billion. With more than 11,000 employees, CenterPoint Energy and its predecessor companies have been in business for more than 130 years. For more information, visit the Web site at http://www.centerpointenergy.com/ .

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 http://www.txgenco.com/ .

The webcast will be archived at http://www.centerpointenergy.com/ , or http://www.prnewswire.com/ for at least one year.

(Minimum Requirements to listen to broadcast: The Windows Media Player software, downloadable free from http://www.microsoft.com/windows/windowsmedia/EN/default.asp and at least a 28.8Kbps connection to the Internet.)

SOURCE CenterPoint Energy, Inc.; Texas Genco Holdings, Inc.

Marianne Paulsen of CenterPoint Energy, Inc.-Texas Genco Holdings, Inc., +1-713-207-6500

http://www.microsoft.com/windows/windowsmedia/EN/default.asp

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