Pioneering: The largest stall controlled wind turbine in the world was inaugurated in Denmark last month before an international audience of invited guests. The Nordtank 1.5 MW turbine, developed with European Union support under the Thermie energy demonstration programme, has a 60 metre tower and 60 metre rotor span. The machine, bought by utility Vestkraft, is located at the site of the Elsam 2 MW experimental wind turbine, turning there since 1988. Also on the site is a Bonus 750 kW prototype. Invited to start the 1.5 MW machine, wind industry pioneer Birger Madsen (above right) pointed out that while the turbine's dimensions are four times those of the popular 55 kW size which got the wind market going in Denmark ten years ago, it will produce over 40 times as much power. Nobody in the mid nineteen-eighties had dreamed of such technology development this side of the year 2000, he said. Just 1000 such machines could produce 10% of Denmark's electricity, the government's long standing goal, he added. At the moment some 3000 wind turbines cover about 3% of Denmark's electricity consumption.
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Senior Renewable Energy Analyst (WindGEMINI Product Lead) DNV GL Bristol (City Centre), City of Bristol