New date for edison board of directors

Public disclosure required by Consob Resolution No. 11971 of May 14, 1999, as amended.

Milan, October 5, 2005 - Edison SpA informs that the Board of Directors – which will examine Group’s results for the nine months end on 30 September 2005 – will meet on 8 November 2005 (and not on 11 November, as previously announced).

Therefore, the Conference Call with analysts and institutional investors will be anticipated to the same day and will be held after the Board of Directors.