Floating Wind Turbines Deployed in French Mediterranean, Powered by Innovative Ballast Water Treatment

In October 2025, BIO-UV Group announced the completion of the first commercial deployment of its containerized BIO-SEA ballast water treatment system (BWTS) at Port-la-Nouvelle in southern France. The landmark project supported the installation of the pioneering EFGL floating offshore wind project in the Mediterranean, which is owned by Ocean Winds and Banque des Territoires.

The EFGL project represents the first floating offshore wind development in the Occitanie region of the French Mediterranean Sea, and it is a significant milestone for the integration of marine environmental technologies into the renewable energy supply chain. BIO-UV's containerized system was used to treat the ballast water deballasted from three floating wind turbine platforms before their deployment offshore.

The rental agreement, signed with Euroports in May 2025, enabled the port operator to provide compliant deballasting services, including the water treatment, to EFGL during the assembly and installation phase. Over the course of approximately two months, BIO-UV treated the ballast water of all three platforms in full compliance with IMO D-2 standards and local environmental regulations, before safe discharge back into the port basin.

"This project is an important milestone for BIO-UV Group," said Maxime Dedeurwaerder, Solutions Business Unit Director at BIO-UV Group. "It is the first time our containerized ballast water treatment technology has been deployed commercially in support of the offshore renewable energy sector, demonstrating not only the performance and reliability of our UV-based solution but also its versatility in new marine applications beyond conventional shipboard use."