The iSpin technology of Danish-Swiss wind turbine optimiser ROMO Wind can be used to cost-effectively measure the power curve of every single turbine in a wind farm. This has now been confirmed by the International Electrotechnical Commission (IEC), which has published a new clarification sheet. The document describes the calibration procedure for norm-compliant use of the precise patented measuring technique directly at the spinner of a wind turbine.
Together with the nacelle anemometer, iSpin has been a part of the international standard IEC 61400-12-2 for measurement of the absolute power curve since 2013. The recently published clarification sheet for wind tunnel calibration of the spinner anemometer enables the application of iSpin in compliance with standards as a more cost-effective and accurate alternative to previous measurement technologies.
Jan Nikolaisen, Co-CEO of ROMO Wind, explains: “The measurement results that we gain with our spinner anemometer iSpin show significantly less variation than the results of all other technologies – met mast, nacelle anemometer and LiDAR included. Unlike conventional methods, the iSpin measurements are undisturbed by terrain effects and wakes from other turbines in the wind farm.”
