France's First Commercial Floating Offshore Wind Farm Sends Power to the Grid, Clearing Path for Mediterranean Expansion

Overview

France’s first commercial floating offshore wind farm began delivering electricity to the national grid on May 4, 2026, when Ocean Winds announced first power from the Éoliennes Flottantes du Golfe du Lion (EFGL) — a 30 MW pilot project sited 16 kilometers off the coast of Leucate and Le Barcarès in the French Mediterranean. The milestone validates a technology that can unlock deep-water wind resources unreachable by conventional seabed-anchored turbines, and it paves the way for the much larger 250 MW Eoliennes Flottantes d’Occitanie (EFLO) project that Ocean Winds and Banque des Territoires won in late 2024.

What We Know

The Project

EFGL is operated by Ocean Winds, a joint venture of EDP Renewables and ENGIE, with Banque des Territoires as a partner. According to Ocean Winds, the farm consists of three Vestas V164-10.0 MW turbines — among the largest wind turbines ever installed on a floating foundation — mounted on Principle Power’s WindFloat semi-submersible platforms in waters 70 to 100 meters deep. The WindFloat T foundations, each containing approximately 2,000 tons of primary steel, were fabricated at Eiffage Métal’s Fos-sur-Mer yard, then wet-towed to Port-La Nouvelle for turbine integration before being deployed offshore, as described by Principle Power.

Grid connection was carried out by Réseau de Transport d’Électricité (RTE), France’s transmission system operator, according to Offshore Wind. The farm is expected to generate approximately 110,000 MWh per year — enough to supply roughly 50,000 inhabitants annually over a 20-year operational life, according to Ocean Winds.

Supply Chain and Jobs

The project emphasizes a local industrial footprint: Energy Global reports that 85% of direct suppliers are French-based companies, 99% are European, and 60% qualify as SMEs. The operational phase supports more than 20 workers in monitoring and maintenance roles.

Biodiversity Innovation

EFGL carries a distinction beyond its energy output: it is designated the world’s first nature-inclusive floating wind farm. According to Offshore Wind, 32 Biohut® artificial marine habitat units, designed by local company Ecocean, were installed on one of the floating foundations to enhance biodiversity and support fish populations. The units are being monitored alongside the wind farm’s operations.

What Executives Said

Craig Windram, CEO at Ocean Winds, stated: “EFGL’s first power reflects OW’s 15-year leadership in floating offshore wind and confirms our excellence in delivering and operating all offshore wind technologies across the world.”

Marc Hirt, Country Manager for France at Ocean Winds, said: “The start of electricity production for EFGL is an important milestone for France’s energy sovereignty and for floating wind more broadly.”

Paulo Almirante, ENGIE Senior Executive Vice President for Renewable & Flexible Power, added: “With the end of construction at the Îles d’Yeu and Noirmoutier offshore wind farm and the first megawatt-hours generated by the Gulf of Lion floating pilot project, ENGIE is reaching a decisive milestone in the development of offshore wind in France.”

Principle Power’s Track Record

The WindFloat technology underpinning EFGL has a documented lineage. Principle Power notes the company previously deployed a 2 MW WindFloat 1 pilot in Portugal, the 25 MW WindFloat Atlantic project in Portugal, a pilot redeployment to Scotland, and the 48 MW Kincardine Offshore Windfarm in Scotland. EFGL, with its 10 MW-class turbines, represents the largest individual turbines yet mounted on a floating foundation in that lineage.

What We Don’t Know

• The final capital cost of EFGL has not been publicly disclosed.
• The timeline for the EFLO 250 MW follow-on project to reach construction has not been announced.
• Long-term performance data for the Biohut® marine habitat units will only emerge over the coming years of monitoring.
• Whether France’s regulatory framework will be adjusted to expedite permitting for commercial-scale floating wind arrays remains unclear.

Analysis

Floating offshore wind has long promised access to vast wind resources in deep water where fixed-bottom foundations are impractical, but the technology has faced persistent questions about cost, reliability, and scalability. EFGL’s first power does not resolve those questions — a 30 MW pilot is a modest proof point — but it does confirm that a full supply chain, from steel fabrication through grid connection, can be assembled and operated in the Mediterranean context.

The signal for industrial policy may be as significant as the megawatts. By anchoring 85% of its supplier base in France, the project demonstrates that floating wind can serve as an anchor for domestic manufacturing rather than being dependent on imported components. The EFLO award — at 250 MW, more than eight times the pilot’s scale — will be the real commercial test of whether that supply chain can be expanded without a cost spike that makes the technology uncompetitive.

For the broader European floating wind sector, France’s progression from pilot to commercial-scale award mirrors trajectories underway in the United Kingdom, Norway, and Spain. The outcome of projects like EFLO in the next decade will determine whether floating wind becomes a significant contributor to European electricity generation or remains a marginal complement to fixed-bottom installations.