Saint-Brieuc offshore wind farm — Ailes Marines

Brittany is home to one of the first offshore wind farms, with 62 wind turbines totalling 496 MW. Maritime conditions and multi-actor coordination make this a complex project, but essential to strengthen the energy transition.

Duration

2020 - 2024

Countries

France

Sectors

Renewable energies

Customer

Iberdrola

Photographie d'une éolienne off-shore

background

The Saint-Brieuc offshore wind farm is among the largest offshore projects currently being carried out in France. Located off the coast of Côtes-d'Armor, it includes 62 wind turbines with a total capacity of 496 MW, equivalent to the electricity consumption of around 835,000 inhabitants. Initiated and supported by Ailes Marines (a subsidiary of Iberdrola), the project is strategic for the French energy transition, helping to diversify the national electricity mix and reduce carbon emissions.

The creation of such an offshore park involves meeting several challenges: marine climatic conditions, which are variable and sometimes extreme; the coordination of a large number of actors — design offices, foundation suppliers, offshore installation specialists — and compliance with a strict regulatory framework, both environmentally and safely. In addition to the installation of wind turbines, the challenge lies in the installation and connection of submarine cables, as well as in the integration of electrical substations to transport the energy produced to the continental grid. In this offshore environment, each step requires careful planning and careful attention to the health, safety, and protection of marine biodiversity.

Customer needs

Ailes Marines wanted to benefit from comprehensive support to supervise safety at sea (HSE), the coordination of the numerous teams involved and the installation of complex equipment in an environment subject to climatic hazards. Adhering to strict deadlines and complying with a set of stringent environmental standards was also essential. The establishment of rigorous monitoring systems made it possible to maintain a high level of quality and reliability during all phases of the project.

Photographie d'un ouvrier
Photographie plateforme offshore

Specificity of the mission

Off the coast of Saint-Brieuc, the installation of 62 wind turbines requires careful monitoring of offshore operations, from the laying of foundations to the assembly of turbines and electrical equipment. The teams mobilized ensure the proper synchronization of the various technical lots (cranes, barges, crew) to limit any interface conflicts. This management includes continuous monitoring of weather conditions, operational risk management and quality supervision, in order to guarantee the reliability of each stage of the construction site.

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