Three floating turbines off Gruissan use hollow concrete rings with damping pools to absorb waves and limit movement

France is raising its renewable energy capacity by deploying floating wind turbines in the Mediterranean Sea.

The nation has set ambitious decarbonization targets, with offshore generation playing an essential role in achieving them.

However, traditional fixed-bottom infrastructure is limited to shallow waters, restricting the potential to unlock maximum clean energy.

Yet the fixed-bottom installations require suitable shallow-water seabed sites for deployment, which are scarce and highly crowded in France.

That is why French developers have turned to floating wind structures that operate in deep offshore waters.

What sets the recent Gruissan floating project apart?

How increased green energy capacity has become essential in France

France’s economic growth has been fueled by imported gas, oil, and coal for decades.

These fossil fuels have sustained industrial heating, manufacturing, and national transport.

Today, they continue to dominate France’s power consumption, accounting for approximately 56% of total energy use.

However, this continuous fossil fuel reliance is no longer viable under national law.

Burning hydrocarbons produces more than 360 million metric tons of greenhouse gas emissions each year.

Under the National Low-Carbon Strategy, complete carbon neutrality must be reached by 2050.

Furthermore, interim goals mandate a 55% reduction in net emissions by 2030 compared to 1990 levels.

Yet, data center and industrial electrification continue to expand nationwide, increasing national power demand.

To meet this growing demand while replacing fossil fuels, green energy capacity must significantly scale up.

While major milestones have been achieved, land-based developments are now increasingly facing severe limitations.

These restrictions have led France to expand into offshore waters.

Addressing the limitations faced by traditional green capacity expansion

Limited land availability has slowed onshore projects, as residential developments, agriculture, and conservation are often prioritized.

As a result, vital wind projects are facing strict zoning laws and community opposition across the nation.

While France may have a moderate overall population density, onshore wind generation still faces these barriers.

To avoid land-use competition and conflict, the wind industry soon transitioned to offshore turbines.

The vast open ocean space features stronger, more consistent winds, enabling higher energy yields.

Yet the fixed-bottom installations require suitable shallow-water seabed sites for deployment, which are scarce and highly crowded in France.

Offshore wind must often share these sites with coastal activities, fishing routes, and marine traffic.

Fortunately, floating wind turbines have helped the industry unlock even greater offshore wind resources in deeper waters.

The French Mediterranean Sea is now being targeted for offshore floating wind generation.

EolMed recently launched a floating pilot project in these waters.

The Mediterranean’s standout floating wind turbines

The pilot project is situated 9.3 miles off the coast of Gruissan in the French Mediterranean.

The 30-MW wind farm has been installed at a depth of 180 feet, and features three 10-MW Vestas turbines.

These turbines are mounted on floating foundations, but they stand out from typical designs.

Standard floating wind turbines face structural threats from incoming waves. EolMed’s initiatives address these threats with its innovative foundation design.

The benefits of using BW Ideol’s patented Damping Pool technology

Each foundation has a compact, square ring floater design with a hollow central opening.

Water is trapped inside the central opening, serving as a counterweight to wave forces.

This absorbs ocean swell energy and minimizes platform movements.

As a result, hydrodynamic stability is increased without using deep-draft hulls or complex ballast management systems.

The low draft also enables construction, assembling, and fitting of the foundations with the turbines at standard industrial quays.

This eliminates the need for expensive heavy-lift installation vessels.

In April 2026, the pilot project produced clean electricity for the first time. It reached full capacity in May 2026.

The floating wind farm has been designed to generate clean power for a 20-year operational period.

Furthermore, it will serve as a demonstrator for future commercial floating wind projects in France.

Ultimately, it proves that floating wind turbines are key to raising green capacity nationwide.