Rumours have been lurking quietly around Denmark after a report in the July edition of Renewable Energy Report, a new publication produced by the Financial Times, that the world's two largest wind turbine makers, Danish Vestas and NEG Micon, had agreed to bid co-operatively on big international contracts. "If it is true, it is not something I know about," says Johannes Poulsen, Vestas director. "To the best of my knowledge, there has absolutely never been anything discussed to that respect with anyone in Vestas." NEG Micon's director, Jens-Erik Kristensen, agrees: "I can strongly deny that such an agreement has ever been discussed or will at any time ever be discussed." The Renewable Energy Report also reports in the same article that wind turbine towers are restricted to a height of 20 metres in Denmark, hampering development of large turbines there. Such news comes as a surprise to most Danish wind turbine owners, who in the last 15 years have erected machines with towers up to 50 metres tall. The current record for the highest wind turbine in Denmark is held by NEG Micon, which in July erected its first 2 MW turbine near Holbæk; the tower height is 68 metres.