AFP: Spain’s Iberdrola, the world’s biggest wind-power generator, said Monday it would invest 4.8 billion euros (6.14 billion dollars) in Britain, two-thirds of it in Scotland, through to 2012. "In the coming years, Iberdrola will intensify its firm commitment to Scotland," he said after a visit by Scotland’s First Minister Alex Salmond to company headquarters in Bilbao in Spain’s northern Basque region. "This will mean that Iberdola will continue to be a catalyst for development in …