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                                    FORM 6-K
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            Report of Foreign Issuer

                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934

                          For the month of August, 2005

                        Commission File Number: 333-07654


                                  ENDESA, S.A.
                 (Translation of Registrant's Name into English)

                              Ribera del Loira, 60
                               28042 Madrid, Spain
                     (Address of principal executive office)

        Indicate by check mark whether the registrant files or will file
             annual reports under cover of Form 20-F or Form 40-F:
                  Form 20-F   |X|                Form 40-F   |_|

       Indicate by check mark if the registrant is submitting the Form 6-K
             in paper as permitted by Regulation S-T Rule 101(b)(1):
                      Yes     |_|                   No       |X|

       Indicate by check mark if the registrant is submitting the Form 6-K
            in paper as permitted by Regulation S-T Rule 101(b)(7):
                      Yes     |_|                   No       |X|

     Indicate by check mark whether by furnishing the information contained
     in this Form, the Registrant is also thereby furnishing the information
       to the Commission pursuant to Rule 12g3-2(b) under the Securities
                             Exchange Act of 1934:
                      Yes     |_|                   No       |X|

  If "Yes" is marked, indicate below the file number assigned to the registrant
                     in connection with Rule 12g3-2(b): N/A
                                                        ---

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                    ENDESA'S ANNOUNCEMENT REGARDING AUNA TLC


Madrid,  August 1st, 2005.- Endesa (NYSE:ELE),  Banco Santander Central Hispano,
Union Fenosa and Auna have  reached an agreement  whereby Auna will sell 100% of
Auna TLC to ONO.  This  agreement  implies a valuation of Euro 2,251 million for
Auna TLC (including Euro 237 million in debt),  subject to any price adjustments
typical of this type of  operation  resulting  from  variations  in net debt and
working capital.

The agreement is still  pending the approval of Auna's Board of  Directors,  and
has to be passed at the  shareholder's  meeting.  The  management  bodies of the
other parties and anti-trust authorities also have to give their go ahead.

This operation  comes on top of the  transaction  announced  several days ago by
which Auna's  shareholders will sell Auna's mobile telephony business (Amena) to
France Telecom.

           For additional information please contact David Raya, North
          America Investor Relations Office, telephone # 212 750 7200
                              http://www.endesa.es


*  This  document  may  contain  certain  forward-looking  statements  regarding
anticipated  financial and operating  results and statistics that are subject to
risks and uncertainties as well as to material risks,  changes and other factors
which may be difficult to predict, including,  without limitation, those factors
described  in the Folleto  Informativo  Continuado  of Endesa  filed  within the
Comision  Nacional  del Mercado de Valores and in the Form 20-F of Endesa  filed
within the  Securities and Exchange  Commission,  both for the fiscal year ended
December 31, 2003.  For all of these  forward-looking  statements,  we claim the
protection of the safe harbor for  forward-looking  statements  contained in the
Private Securities Litigation Reform Act of 1995.





                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.

                                       ENDESA, S.A.

Dated: August 1st, 2005       By: /s/ David Raya
                                 --------------------------------------
                              Name: David Raya
                              Title: Manager of North America Investor Relations