The IEC 61400-12-1 is the most important standard for wind measurement. This standard specifies the correct set-up of a met mast including installation of sensors. It describes the quality of sensors installed on the met mast with regard to accuracy and reliability. Additionally, it defines a set of criteria with regard to data quantity and quality.
The IEC standard has been updated recently to meet new requirements for wind energy assessment.
The new IEC published in March 2017 includes large parts about site assessment. Ultrasonic anemometers and remote sensing devices are accepted for site assessment under certain conditions. Additionally, data integrity, quality and filtering are in the focus of the standard (see also MEASNET). more