PRINCETON, N.J.--(BUSINESS WIRE)--May 30, 2007--NRG Energy, Inc. (NYSE:NRG) today announced the following preferred stock dividends, payable on June 15, 2007, to holders of record of its preferred stock as of June 1, 2007:

    --  A $10 per share cash dividend on its 4% Convertible Perpetual
        Preferred Stock issued in December 2004; and

    --  A $3.59375 per share cash dividend on its 5.75% Mandatory
        Convertible Preferred Stock issued on February 2, 2006.

All inquiries and correspondence regarding NRG common and preferred stock--relating to shareholder records, transfer of shares, lost certificates, or change of address--should be addressed to:

             Bank of New York
             P.O. Box 11258
             Church Street Station
             New York, NY 10286
             800.524.4458
             www.stockbny.com
             shareowners@bankofny.com

In addition, NRG will complete its previously announced two-for-one common stock split, in the form of a stock dividend paid on May 31, 2007 to holders of record as of May 22, 2007. The Company's common stock will begin trading on a split-adjusted basis on the New York Stock Exchange (NYSE) when the market opens for trading on June 1, 2007.

The number of common shares outstanding upon completion of the stock split will be approximately 242 million shares.

About NRG

A Fortune 500 company, NRG Energy, Inc. owns and operates a diverse portfolio of power generating facilities, primarily in Texas and the Northeast, South Central and West regions of the United States. Its operations include baseload, intermediate, peaking, and cogeneration and thermal energy production facilities. NRG also has ownership interests in generating facilities in Australia, Germany and Brazil.

This news release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements are subject to certain risks, uncertainties and assumptions and typically can be identified by the use of words such as "will," "expect," "believe," and similar terms. Although NRG believes that its expectations are reasonable, it can give no assurance that these expectations will prove to have been correct, and actual results may vary materially.

NRG undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. The foregoing review of factors that could cause NRG's actual results to differ materially from those contemplated in the forward-looking statements included in this news release should be considered in connection with information regarding risks and uncertainties that may affect NRG's future results included in NRG's filings with the Securities and Exchange Commission at www.sec.gov.

    CONTACT: NRG Energy, Inc.
             Investor Relations:
             Nahla Azmy, 609-524-4526
             or
             Kevin Kelly, 609-524-4527
             or
             Media Relations:
             Meredith Moore, 609-524-4522
             or
             Lori Neuman, 609-524-4525
             or
             Dave Knox, 713-795-6106

    SOURCE: NRG Energy, Inc.