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Windtech International May June 2024 issue






In spring 2016, Energiekontor installed the spinner anemometer technology iSpin initially on two of seven Vestas V80 type turbines. The exact wind measurements taken directly at the spinner were intended to determine whether the turbines in the Lower Saxonian wind farm were aligned for the best possible yield.

Both of the two megawatt turbines showed siginificant yaw misalignments of 8.0 and 7.9 degrees. After correction, the turbines delivered 3.5 and 2.9 per cent more production. At Thüle wind farm, one freely-streamed and one shadowed turbine were equipped with the iSpin measurement technology. The wind farm operator plans to equip further turbines with the iSpin system and expects to gain € 20,000 more revenue through better measurement data.

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