Power curve measurement with Spinner Anemometer according to IEC 61400-12-2

Giorgio Demurtas

Research output: Book/ReportReportResearch


In wind industry power performance measurements on site is an increasing challenge due to the larger and larger rotors. An IEC standard on power performance verification with nacelle anemometry, IEC61400-12-2 [1], has been developed and was published 2013. However, nacelle anemometry has a number of drawbacks that makes use of the standard with respect to nacelle anemometry difficult to apply in the field [3] [4]. An option in the standard is to use spinner anemometry, a type of wind sensor that measures wind speed on the spinner in front of the rotor. The report is based on spinner anemometer measurements from two adjacent wind turbines and a met-mast. Due to the site layout, it is possible with the met-mast to measure the power curve of both turbines.
The report also presents a method for evaluation of uncertainty related to the spinner anemometer.
Original languageEnglish
PublisherDTU Wind Energy
Number of pages66
Publication statusPublished - 2015
SeriesDTU Wind Energy I

Bibliographical note

This is an internal report and therefore not available for download.


  • DTU Wind Energy I-0440
  • DTU Wind Energy I-440
  • DTU Wind Energy Report I-0440


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