BIO-UV Group has completed the first commercial deployment of its containerised BIO-SEA ballast water treatment system at Port-la-Nouvelle in southern France, supporting the installation of the Eoliennes Flottantes du Golfe du Lion (EFGL) floating offshore wind project in the Mediterranean, the company said this week.
The EFGL project, a joint venture between Ocean Winds and Banque des Territoires, is the first floating offshore wind development in France’s Occitanie region. BIO-UV’s mobile treatment unit was used to process deballasted water from three floating turbine platforms prior to their offshore deployment.
The system was provided under a rental agreement with Euroports, signed in May 2025, to enable compliant water treatment during the turbine assembly and installation phase. Over two months, BIO-UV treated ballast water from all three platforms in accordance with International Maritime Organization (IMO) D-2 standards and local environmental regulations.
“This project is an important milestone for BIO-UV Group,” said Maxime Dedeurwaerder, director of the company’s solutions business unit. “It is the first time our containerised 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.”
Ocean Winds France business development director Dominique Moniot said the initiative highlights the growing focus on environmental safeguards in offshore wind construction. “Protecting marine biodiversity is critical to the sustainable growth of offshore wind,” Moniot said. “By ensuring ballast water is treated before it is released, we help prevent the transfer of non-indigenous species, supporting the ecological integrity of coastal waters as new renewable infrastructure is installed.”
Euroports eolic director Remy Moron said the system’s portability simplified operations at the site. “BIO-UV’s system allowed us to offer a complete and compliant ballast water treatment service to our client Ocean Winds for the EFGL project without transporting this water by truck to permanent facilities, and without impacting the assembly planning,” Moron said.
BIO-UV Group chief executive Laurent Emmanuel Migeon said the deployment underlines the convergence of environmental protection and industrial efficiency in the offshore wind sector. “Offshore wind is entering a new phase where environmental protection, regulatory compliance and operational efficiency must go hand in hand,” Migeon said. “This project proves that portable ballast water treatment can play a vital role in achieving those objectives.”
The 20-foot containerised BIO-SEA unit, developed under the EU-funded ELBE programme, provides a modular quayside solution for treating ballast water from floating platforms before discharge. The EFGL project features three 10-megawatt turbines located off Leucate-Le Barcarès near Narbonne and represents a significant step in advancing floating wind technology in the Mediterranean.
