(Name of Subject Company)

(Name of Person Filing Statement)

Common Stock, par value $0.01 per share
(Title of Class of Securities)

629377508
(CUSIP Number of Class of Securities)

Michael R. Bramnick
Senior Vice President and General Counsel
NRG Energy, Inc.
211 Carnegie Center
Princeton, New Jersey 08540
(609) 524-4500
(Name, address and telephone number of person authorized to receive
notices and communications on behalf of the persons filing statement)

o Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

 

 

     This Amendment No. 49 to Schedule 14D-9 amends and supplements the Solicitation/Recommendation Statement on Schedule 14D-9 (as amended from time to time, the “Statement”) originally filed by NRG Energy, Inc., a Delaware corporation (“NRG”), with the Securities and Exchange Commission (the “SEC”) on November 24, 2008, relating to the unsolicited offer by Exelon Corporation, a Pennsylvania corporation (“Exelon”), through its wholly-owned subsidiary, Exelon Xchange Corporation, a Delaware corporation, to exchange each outstanding share of common stock of NRG, par value $0.01 per share (“NRG Common Stock”), for 0.485 of a share of Exelon common stock, without par value, upon the terms and subject to the conditions set forth in (1) the Preliminary Prospectus/Offer to Exchange, originally filed with the SEC on November 12, 2008 (the “Exchange Offer”) and (2) the related Letter of Transmittal (which, together with the Exchange Offer and any amendments or supplements thereto from time to time, collectively constitutes the “Offer”). Capitalized terms used but not defined herein have the meanings ascribed to them in the Statement. Except as specifically noted herein, the information set forth in the Statement remains unchanged.

Item 9. Exhibits.

     Item 9 is hereby amended and supplemented by adding the following exhibits:

Exhibit
No.		Description
(a)(54)		Press Release, dated July 21, 2009*

SIGNATURE

     After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: July 21, 2009