The Saint Brieuc offshore wind farm, which will be operated by Iberdrola off the coast of Brittany, France, has reached its second phase of construction. The first offshore wind platforms (jackets), on which the wind turbines will be placed, arrived on Saturday at the port of Brest (France), after traveling the more than 1,500 kilometers that separate the port of Ferrol from its location in the English Channel.
These structures will remain in the port's polder until installation work begins in the next few days. We are talking about the first four platforms built at the Navantia Seanergies shipyard in Fene (A Coruña), out of the 62 that the facility will have. It will be Iberdrola's first major site of this technology in France. The construction contract has also been the largest order to date executed by the Navantia and Windar partnership in offshore wind power.
The delivery of the first platforms demonstrates the successful completion of the contract signed two years ago, valued at 350 million euros. The order included the manufacture and assembly of the 62 structures at Navantia Windar's facilities in Brest and Fene, as well as the piles that anchor the wind turbines to the seabed at Windar's facilities in Avilés.
The offshore wind farm will be located some 16 kilometers from the coast and will cover an area of 75 square kilometers. Its construction represents an overall investment of around 2,500 million euros. With almost 500 MW of capacity, it will generate clean energy equivalent to the consumption of 835,000 people, once it comes into operation in 2023.
The Saint-Brieuc platforms rest on three legs. Each is up to 75 meters high, 25 meters wide and weighs 1,150 tons. Iberdrola has used an innovative hydraulic device called pile grippers to fix these structures, which provides additional fixation and stability during the installation phase.