The MEASNET (Measuring Network of Wind Energy Institutes) site assessment group has released a version 2 of their MEASNET procedure “Evaluation of Site-Specific Wind Conditions” .
The procedure defines the scope of evaluations and requirements on the methodology for assessing site conditions relevant for the design and structural integrity of a wind turbine, with an aim to improve the comparability and traceability of such results.
The first version was released in 2009. The scope covers all relevant tasks like wind measurements and data evaluation, as well as extrapolation of such data (long-term assessment, wind field modelling, extreme winds and uncertainty), and is accompanied by rules for performing mutual assessments and Round Robin tests.
As current improvement, some topics which have been frequently requested due to the relevance for the wind industry, are addressed more explicitly and in higher detail: wind turbine energy yield assessment and utilisation of remote sensing measurement techniques.
MEASNET is currently preparing a Round Robin test for late 2016 in order to make the new procedure operational. The test will be open for external participants, the group said.
The MEASNET expert group further actively supports the preparation of the new international IEC 61400-15 standard, by providing the MEASNET site assessment procedure and further input for that work. A liaison of the IEC 61400-15 group with MEASNET has been formed.