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United Kingdom

United Kingdom

Winds blow turbine from tower

A Zond nacelle and rotor in Northern Ireland fell from their tower during hurricane force winds which hit the province on December 26. The turbine was one of ten Z-550 kW series machines at Owenreagh in County Tyrone. Zond is the manufacturing arm of Enron Wind Corp in the US. According to Enron, the machine failed at the yaw pin bolts at the caliper shoes, causing the turbine to fall from its tower. The company has not yet determined conclusively the cause of the failure. An investigation of the bolts on the site's remaining nine turbines has found all to be in good condition. No units at any of Northern Ireland's other five wind farms failed during the winds, which at Owenreagh reached in excess of 140 miles per hour. Gusts of over 150 mph were recorded at another wind farm site, Enron says.

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