Resource Assessment

In 2025, a suite of baseline technical studies was completed and made available for the Golfe de Gascogne offshore wind zone, providing a comprehensive assessment of wind, metocean, and seabed conditions relevant to future floating wind projects. Meteorological work by Météo France included a 2025 report on usual wind-related risks ("Rapport Etude d’évaluation des risques usuels liés au vent 2025") and a 2025 report analysing storms and extreme waves ("Rapport Analyse des tempêtes et des vagues extrêmes 2025"). Oceanographic baseline syntheses prepared by SHOM covered tides, currents, and swell ("Synthèse état de connaissance initiale - Marée 2025", "Courants 2025", "Houle 2025"). Hydrographic syntheses further documented initial knowledge on bathymetry, anthropogenic elements, and hydrology for 2025. Complementary seabed characterisation was provided through sedimentology and morpho-sedimentary survey analysis, via the 2025 sedimentology baseline synthesis and the 2025 morpho-sedimentary survey analysis report. Together, these studies constitute a coordinated resource and site-knowledge assessment, establishing the metocean and seabed baseline required for early development of the Golfe de Gascogne Sud floating offshore wind projects.