ENEL: FILED THE FORM 20-F WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Published on Friday, 29 June 2007

Rome, 29 June 2007 - Enel announces that it has filed its Annual Report for the 2006 fiscal year (Form 20-F) with the United States Securities and Exchange Commission, in accordance with U.S. law.
The document is available to the public at the Company’s registered office as well as on its Internet site at the following address: www.enel.it and at Borsa Italiana S.p.A. (www.borsaitalia.it).
Requests  for hard copies may be made by  calling the numbers +39.06.83057008 or +39.06.83052081,  or by sending an e-mail to the following addresses: investor.relations@enel.it, azionisti.retail@enel.it.
Holders of ADRs listed on the New York Stock Exchange and representing Enel shares should contact the JP Morgan Service Center on 1-800-990-1135 (for calls within the United States and Canada) or on 1-201-680-6630 (for calls from any other country).

| June, 29 2007

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