UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant þ

Filed by a Party other than the Registrant o

Check the appropriate box:
o	Preliminary Proxy Statement
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o	Definitive Proxy Statement
þ	Definitive Additional Materials
o	Soliciting Material Pursuant to §240.14a-12

TXU Corp.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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		Persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Additional Information and Where to Find It

This communication may be deemed to be solicitation material in respect of the proposed merger of TXU Corp. (the “Company”) with Texas Energy Future Merger Sub Corp., a wholly-owned subsidiary of Texas Energy Future Holdings Limited Partnership (the “Merger”). In connection with the proposed Merger, the Company has filed a definitive proxy statement with the Securities and Exchange Commission (“the SEC”). This definitive proxy statement and a form of proxy were mailed to the shareholders of the Company on or about July 27, 2007. BEFORE MAKING ANY VOTING DECISION, THE COMPANY’S SHAREHOLDERS ARE URGED TO READ THE PROXY STATEMENT REGARDING THE MERGER CAREFULLY AND IN ITS ENTIRETY BECAUSE IT CONTAINS IMPORTANT INFORMATION ABOUT THE PROPOSED MERGER. The Company’s shareholders may obtain, without charge, a copy of the definitive proxy statement and other relevant documents filed with the SEC from the SEC’s website at http://www.sec.gov. The Company’s shareholders may also obtain, without charge, a copy of the definitive proxy statement and other relevant documents by directing a request by mail or telephone to Corporate Secretary, TXU Corp., Energy Plaza, 1601 Bryan, Dallas, Texas 75201, telephone: (214) 812-4600, or from the Company’s website at: http://www.txucorp.com/proxy.

Participants in the Solicitation

The Company and its directors and officers may be deemed to be participants in the solicitation of proxies from the Company’s shareholders with respect to the Merger. Information about the Company’s directors and executive officers and their ownership of the Company’s common stock is set forth in the definitive proxy statement for the Company’s 2007 Annual Meeting of Shareholders, which was filed with the SEC on July 24, 2007. Shareholders may obtain additional information regarding the interests of the Company and its directors and executive officers in the Merger, which may be different than those of the Company’s shareholders generally, by reading the definitive proxy statement filed with the SEC and other relevant documents regarding the Merger.

TXU Corp.
1601 Bryan Street
Dallas, TX 75201

August 7, 2007

Dear Fellow Shareholder:

We have previously sent to you proxy material for the TXU Corp. Annual Meeting of Shareholders to be held on September 7, 2007. Your Board of Directors has unanimously recommended that the shareholders vote in favor of the proposed merger agreement.

Since approval of the merger requires affirmative vote of at least two-thirds of the outstanding shares of common stock, your vote is important, no matter how many or how few shares you own. Not voting has the same effect as voting “No.” If you have not already done so, please vote your shares by marking, signing and dating the enclosed proxy card and returning it in the envelope provided. You may also vote your shares by telephone or through the Internet by following the instructions provided on the enclosed proxy card.

Very truly yours,

C. John Wilder
Chairman, President and CEO

If you have any questions, or need assistance in voting
your shares, please call our proxy solicitor,

TOLL-FREE, AT 1-888-605-7523

IMPORTANT NOTE:

If you hold your shares through a bank or broker, you may be
able to vote by telephone or via the Internet.

Please call Georgeson Inc. at 1-888-605-7523 for assistance.