Without wanting to sound too dramatic, there are few more important questions for the renewables sector globally.

There was a mood of confidence at the annual American Wind Energy Association (AWEA) Windpower show in Chicago last month, energised by the publication of better-than-hoped-for rules for the production tax credit (PTC). And AWEA was presenting its new chief executive and chairman.

In Tom Kiernan, it has found a highly effective communicator — his opening address took slick to new levels — who has the skills and connections that are needed on Capitol Hill.

And