POSTER with EDF Renouvelables
Carried out in collaboration with EDF Renouvelables (now EDF Power Solutions) and presented at the WindEurope Technology Workshop in June 2025, this poster demonstrates once again that thermal stability consideration is essential for accurate Wind Resource Assessment, wih a global mean absolute speed error of 2.5% based on five masts (in two sites). You can download the poster presenting our methodology and the results of this study using the form below.
Influence of atmospheric stability determination methods on wind resource assessment and negative wind shear simulation
Abstract
The main goal of this project was to investigate if low wind shear and negative wind shear—typically not visible in neutral CFD simulations—could be simulated under specific thermal stability conditions. S-shaped profiles corresponding to negative shear values, can be considered as non-idealized wind profiles and may affect not only power production but also structural loads.
To explore this, two sites with multiple masts and overlapping measurement periods were analyzed using Meteodyn WT software. Site A is located in a coastal area and site B is situated in mountainous desert region.
The main goal of this project was to investigate if low wind shear and negative wind shear—typically not visible in neutral CFD simulations—could be simulated under specific thermal stability conditions. S-shaped profiles corresponding to negative shear values, can be considered as non-idealized wind profiles and may affect not only power production but also structural loads.
To explore this, two sites with multiple masts and overlapping measurement periods were analyzed using Meteodyn WT software. Site A is located in a coastal area and site B is situated in mountainous desert region.
