Abstract
Offshore wind energy plays a central role in reaching the European Green Deal target of a climate-neutral Europe by 2050. In this study, we simulate offshore wind development for 2023, 2030, and beyond 2050 across the Northwest-European Shelf, using various turbine sizes over a 10-year period, an approach not previously undertaken. For the post-2050 scenario, we assess the maximum potential deployment within all currently identified development zones in North Sea countries. Results indicate that large-scale offshore wind farm expansion can reduce surface wind speeds by up to 2–3 m s⁻¹. Notably for post-2050 scenario, precipitation decreases by 10–12% in coastal regions of Germany, the Netherlands, and the United Kingdom, and by more than 15% in parts of Jutland, Denmark, particularly under south-westerly winds. Conversely, precipitation increases over the wind farm areas. These findings suggest that extensive offshore wind deployment may significantly alter regional climate patterns, highlighting the need for further multi-model investigations to reduce uncertainty.