There was one obvious reason for the positive buzz at the Windforce Baltic Sea conference in the bone-chilling Estonian capital of Tallinn last month — Vattenfall’s spectacularly low €49.90 ($52.50) per MWh winning bid for Denmark’s 600MW Kriegers Flak project.

“Is this really a trend now that the cost of offshore wind is as low as €50 per MWh?” the enthusiastic chairman of the Estonian Wind Power Association, Martin Kruus, asked delegates, before declaring that the Baltic Sea “is the most feasible and best place for offshore wind perhaps in the world, but definitely in Europe”.