BS EN IEC 61400-15-1:2025

1 Scope The scope of this part of IEC 61400 is to define a framework for assessment and reporting of the site suitability/wind turbine suitability conditions for both onshore and offshore (fixed and floating) wind power plants. This includes:

definition, measurement, and prediction of the long-term meteorological and wind flow characteristics at the site;
integration of the long-term meteorological and wind flow characteristics with wind turbine and balance-of-plant characteristics;
characterizing environmental extremes and other relevant plant design drivers;
addressing documentation and reporting requirements to help ensure the traceability of the assessment processes.

The framework is defined such that applicable national norms are considered and industry best practices are utilized. This framework defines the minimum set of parameters. Additional parameters may be used if needed. The meteorological and wind flow characteristics addressed in this document relate to wind conditions, where parameters such as wind speed, wind direction, turbulence intensity, wi...