Bloomberg: EDP-Energias de Portugal SA, Portugal’s largest utility, said its renewable-energy unit may expand in Canada and Mexico as it raises as much as 2 billion euros ($3.2 billion) in Europe’s biggest initial public offering so far this year. The EDP unit is selling stock to help finance plans to develop wind energy parks from Poland to the U.S. and meet rising demand while emitting less carbon dioxide. Last year’s purchase of Horizon Wind Energy LLC of Texas from Goldman Sachs Group Inc. …