The power performance measurement, which checks a turbine’s electricity production as a functionof the average  wind  speed, is central to the testing certification process of the giant machines, two of which are due to be installed off Belgium this summer.

The onshore tests performed since March 2012 have provided “extensive” data collection on thepower curve which proves up the technical specifications and “correlates extremely well” with the design models of the turbine, says Alstom.

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