Iberdrola has officially inaugurated the Saint-Brieuc offshore wind farm in Brittany, marking it as the second largest of its kind in France.
With a total capacity of 496 megawatts (MW), the facility is expected to generate nearly 2,000 gigawatt hours (GWh) of electricity annually, providing clean and local energy to nearly 1 million residents.
The project, which began development in 2012, required an investment of €2.4 billion and took three years to construct, reaching full operational status in 2024.
It features 62 wind turbines, each boasting an impressive capacity of 8 MW, making them the most powerful turbines installed in France to date.
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During its construction, the wind farm created over 1,700 jobs, including 500 in the local area, and involved a number of leading companies in the industry.
Key partners included Siemens-Gamesa for the wind turbines, the Navantia Windar consortium for the foundations and transition pieces, Haizea for the towers, Prysmian for cabling, and Van Oord for installation. In total, more than 150 European firms contributed to the project’s successful completion.
The executive chairman of Iberdrola, Ignacio Galán, said, “This project lays the foundations for the offshore wind sector in France and clearly demonstrates the potential that this technology has to boost energy security and the reindustrialisation of Europe, while contributing to climate objectives, in line with the Draghi report.”
The Saint-Brieuc project significantly contributed to the advancement of France’s offshore wind sector.
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Siemens-Gamesa produced the wind turbines at a new facility in Le Havre, while Navantia Windar partially constructed and assembled the jacket foundation components in the Port of Brest.
Iberdrola’s skilled project team and its suppliers navigated various challenges to complete the project on time, including adverse weather and tough sea conditions. They developed innovative techniques and equipment for securing the turbine foundations to the seabed, successfully addressing the difficulties posed by hard basalt rock formations.
Extensive planning ensured that hundreds of companies in the supply chain delivered components and equipment according to specifications and timelines.
Expert teams supported this effort by implementing numerous environmental protection measures and fulfilling various social requirements.