6-K

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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 December, 2003

                        Commission File Number: 001-12440

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

                                  Santa Rosa 76
                                 Santiago, Chile
                     (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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                                   SIGNATURES

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

                                            ENERSIS S.A.


                                            By: /s/ Mario Valcarce
                                            ------------------------------------

                                            Name:  Mario Valcarce
                                            Title: Chief Executive Officer

Date: December 23, 2003



                                INDEX OF EXHIBITS

Exhibit 01 - Relevant Fact Statement dated December 22, 2003.

EX-1

                                                                         ENERSIS

                                                   Santiago, December 22nd, 2003
                                                            GER.Gen No. 200/2003

Mr. Alejandro Ferreiro Y.
Super Intendent of Securities and Exchange
1446 Libertador Bernardo O'Higgins Avenue, 1st Floor
Santiago

Ref.: Relevant Fact Statement

Dear Mr. Ferreiro:

In accordance with Articles 9 and 10.2 of Law No. 18,045 and the
Superintendency's General Regulation No. 30, I hereby inform you, as a Relevant
Fact Statement, that, today, this Company has been informed that Elesur S.A. has
sold and transferred to Endesa Internacional S.A. 1,778,826,237 shares of
Enersis S.A., representing the 5.448475% of the Company's total capital stock,
at a price of 84.5 Chilean pesos per share. Both companies, meaning Elesur S.A.
and Endesa Internacional S.A. are currently subsidiaries and 100% controlled by
the Endesa Spain Group.

This transference doesn't change at all the control that the Endesa Spain Group
exercises over Enersis S.A., and it has been done as part of the complete
process of rationalization and simplification of the Endesa Spain Group's
corporate structure.

Sincerely yours,

                               Alfredo Ergas Segal
                             Chief Financial Officer

c.c.  Santiago Stock Exchange
      Electronic Stock Exchange of Chile
      Brokers Exchange of Valparaiso
      Risk Rating Commission