Wedoany.com Report-Nov. 17, Seaturns, a wave energy developer based in France, has begun phase II of its full-scale trials in the Gironde estuary, located in Région Nouvelle-Aquitaine. The company selected this site because its technical and maritime conditions are described as “ideal for validating our demonstrator.” The region is regarded as an important area for marine technology and renewable energy advancement, supported by its maritime ecosystem, diversified industrial base, and recognized offshore capabilities.

Seaturns is conducting these trials with support from the Grand Port Maritime de Bordeaux (GPMB), which provides institutional and technical assistance. The company stated: “This phase II is a key milestone in confirming the reliability of our technology, preparing for its industrialization and commercial deployment, while strengthening the French and European wave energy sector.” This stage represents an important step in the progression of its wave energy converter from development toward broader application.

The company designed its wave energy converter (WEC) with a focus on cost efficiency and simplified offshore procedures. The system is intended to streamline installation, facilitate maintenance, and reduce environmental impact. Seaturns aims to lower both production and operating costs compared with other wave energy technologies currently in use.

According to the company, its technology generates electricity by capturing the motion of ocean waves. The system uses a cylindrical WEC anchored with a patented method that converts horizontal wave movement into a pitching motion. Inside the converter, a water pendulum and air chambers create airflow that powers a turbine connected to an alternator, which produces electricity. This approach is designed to optimize the transfer of wave motion into usable electrical output.

In October, Seaturns started phase I of its full-scale trials at Nantes Saint-Nazaire Port. That earlier phase marked the company’s transition from design activities to real-world implementation. With phase II now underway in the Gironde estuary, the company is moving forward with validating its system under extended operational conditions.

Across both phases, the company aims to demonstrate the performance, durability, and cost advantages of its converter. By progressing through structured testing stages, Seaturns intends to build a technological foundation that supports future industrial deployment. The trials are part of its long-term plan to contribute to wave energy development within France and Europe, while further integrating marine-based renewable technologies into regional industry.