TÜV NORD provides comprehensive support to wind turbine operators in assessing the feasibility of lifetime extension of wind turbines. As an independent expert and full-service provider in this interdisciplinary field, TÜV NORD covers both the analytical and practical aspects of wind turbine lifetime extension.
Analytical Part: Wind- and Turbulence Analysis & Load Calculation
In the analytical phase, we determine the site-specific wind and environmental conditions throughout the operating period of the wind turbine. This includes analyzing wind speed distribution and effective turbulence intensities. Based on these findings, we calculate the site-specific loads and compare them with the original design loads of the wind turbine. These results allow us to determine the theoretical remaining lifespan of the wind turbine.
Practical Part: Inspection incl. Blades
As part of the required practical assessment, we conduct an extended recurrent inspection of the wind turbine. The focus lies on evaluating component fatigue and structural stability to ensure safe operation during the extended lifetime.
The results from the analytical and practical assessments are combined to provide an overall assessment of the wind turbine's potential for lifetime extension. The final report contains all relevant information and background details, including the recommended duration for the extended operation of the wind turbine. Additionally, we develop and document individual measures to ensure safe continued operation.
TÜV NORD's lifetime extension analysis aligns with the latest guidelines established by BWE, the German Institute for Structural Engineering (DIBt) and the DNVGL (ST-0262).