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

April, 2015

Commission File Number: 001-13240

Empresa Nacional de Electricidad S.A.

National Electricity Co of Chile Inc

(Translation of Registrant's Name into English)

Santa Rosa 76,

Santiago, Chile

(56) 22630 9000

(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:

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):

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):

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:

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

SIGNIFICANT EVENT

Empresa Nacional de Electricidad S.A.

Securities Registration Record N° 0114

                                                                                                                                Santiago, April 28, 2015

                                                                                                                                Ger. Gen. N°    052 /2015

Mr. Carlos Pavez Tolosa

Superintendent of Securities and Insurance

Superintendence of Securities and Insurance

Av. Libertador General Bernardo O’ Higgins N° 1449

Santiago

                                                                                                                                                Ref.:       Significant Event

Dear Sir,

In accordance with articles 9 and 10 under Securities Market Law N° 18,045, and as established under General Norm N°.30 of the Superintendence, duly authorized on behalf of Empresa Nacional de Electricidad S.A. (“Endesa Chile” or the “Company”), I hereby inform you as significant event that at the Ordinary Shareholders Meetingheld on April 27, 2015, it was agreed to distribute a minimum definitive dividend (partially covered by the interim dividend N° 57 of Ch$ 3.44046 per share and an additional dividend amounting to a total of Ch$ 20.39541 per share). As the mentioned interim dividend N°57 was already paid, it will be distributed and paid the remaining of the definitive dividend N°58, which amounts to Ch$ 16.95495 per share.

Sincerely yours,

Valter Moro

Chief Executive Officer

c.c.:         Distribution list

DISTRIBUTION LIST

c.c.:      - Superintendent of Pensions

            - Santiago Stock Exchange – General Manager

              Electronic Stock Exchange – General Manager

            - Valparaiso Stock Exchange – General Manager

            - Fitch Chile Clasificadora de Riesgo Ltda. – General Manager

            - Feller Rate Clasificadora de Riesgo Ltda. – (Attn. Nicolás Martorell)

             RiskClassificationCommission – General Management (Attn. Alejandro Muñoz)

            - Bond holders (Attn. Andrés Sepúlveda)

            - Depósito Central de Valores – General Manager

            - Enersis S.A. – General Management

            - Enersis S.A. – Legal Counsel

            - Enersis S.A. – Audit Management

            - Enersis S.A. – Regional Finance Manegement

            - Enersis S.A. – Communications Management

            - Enersis S.A. – Compliance and Capital Markets Management

            - Endesa Chile – Administration and Finance Management

            - Endesa Chile – Regional Engineering, Projects and R&D&I Management

            - Endesa Chile – Communications Management

            - Endesa Chile – General Accountant

            - Endesa Chile – Legal Advisory

            - Endesa Chile – Assistant Management, Investor Relations

Endesa Chile - Teléfono (56) 22630 9000 - Casilla 1557 - Correo Central - Santiago de Chile

Endesa Chile - Teléfono (56) 22630 9000 - Casilla 1557 - Correo Central - Santiago de Chile

Endesa Chile - Teléfono (56) 22630 9000 - Casilla 1557 - Correo Central - Santiago de Chile