Energias de Portugal to Hold Press Conference on Its Acquisition of Horizon Wind Energy

On Tuesday, July 10, 2007 there will be a press conference coinciding with the closing of Energias de Portugal's, S.A. ("EDP") acquisition of Horizon Wind Energy LLC ("Horizon"), a leading developer, owner and operator of wind power generation in the United States, from The Goldman Sachs Group. The transaction values the equity of Horizon at USD 2.74 billion. Antonio Mexia, CEO, EDP, will both discuss the transaction and take questions from reporters.