Twelve Laboratories Passed 2025 Measnet Wind Test
International labs met rigorous standards for wind assessment in a 2025 proficiency evaluation.
Updated on Oct. 6, 2026 in Current Conditions
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Twelve ISO 17025-accredited laboratories successfully passed the 2025 Measnet Site Assessment Proficiency Test. The evaluation ensured consistency in assessing complex-terrain wind farm sites using standardized procedures.
Why it matters
The testing ensures that wind energy assessments remain consistent and reliable across different international laboratories. By standardizing these metrics, the industry can better guarantee the accuracy of long-term wind resource predictions.
Participants achieved a precision of plus or minus 1.7 percent for long-term wind conditions and 4.3 percent for AEP after wake losses. Wind shear modeling was maintained within a 0.03 exponent tolerance throughout the 2025 assessment.
The players
Measnet
Measnet is an international organization that promotes global quality standards for wind energy measurement and assessment.
The details
Laboratories completed an assessment workflow that spanned from initial data filtering to the final estimation of annual energy production. The evaluation process required experts to analyze complex-terrain wind farm sites using both one year of mast measurements and 20 years of long-term reference data.
Timeline
The Measnet Site Assessment Proficiency Test was conducted in 2025.
Seasonal Patterns
The 2025 assessment followed the technical requirements defined by the IECRE framework O.D. 551-17. This proficiency round aligns with industry efforts to improve global data uniformity compared to previous ad-hoc assessment methodologies.
While the test results do not require direct action from the public, they provide industry professionals with verified laboratory benchmarks. Developers can utilize these validated standards to ensure more accurate risk assessments for future wind energy projects.
The takeaway
Reliable laboratory assessments are essential for the financial viability and long-term performance of global wind energy developments. Standardizing these testing protocols reduces uncertainty in complex-terrain energy modeling and project planning.
Further reading
Learn more about the latest industry standards in the Current Conditions section.
Source note: This article includes information reported by Windtech-international.
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