Energy ministers meeting in Brussels last month seemed sure of the direction in which they wished to go on renewables, but decidedly uncertain of how to get there. As a result they failed to pass a resolution for the EU to double its use of renewables by 2010, including the installation of 10,000 MW of wind farms with public backing. The next step is up to the European Commission. It has to devise a regulatory framework for achieving the aims of ministers. Not only must the proposal be politically acceptable, it must also abide by the rules of a liberalised market.