Installation of the first foundation for the Saint-Brieuc offshore wind farm
Pleudaniel / Lézardrieux / Saint-Brieuc / Paris - 01 July 2022 -
- Ailes Marines, a company wholly owned by the Iberdrola group, today announced the start of the installation of the first jacket foundation of the 62 wind turbines of the offshore wind farm in the Bay of Saint-Brieuc.
- This installation phase mobilises 5 vessels in the area. The navigation and maritime safety rules are set
by prefectural decrees.
- During this work phase, Ailes Marines is continuing with the safety measures and environmental monitoring.
- Saint-Brieuc is the second offshore wind farm to be installed in France. It will supply Brittany with green energy and contribute to the achievement of the governmental objectives set by the PPE.
Second offshore wind farm being installed in France
The second offshore wind farm to be installed in France, the Saint-Brieuc marine renewable energy production site will supply Brittany with green energy. This new source of electricity production in the region will contribute to the achievement of the government's objectives set out in the Multiannual Energy Program (PPE) as part of the national energy transition.
Emmanuel Rollin, Vice President of Ailes Marines and Director of Offshore France at Iberdrola: "Ten years after being awarded the contract for the Saint-Brieuc offshore wind farm, the installation of the first foundation is a significant step forward in the realization of this ambitious project for the production of marine renewable energy. At a time when electricity markets are under severe pressure, the Saint-Brieuc offshore wind farm - which will produce the equivalent of 9% of Brittany's electricity consumption - will contribute to its energy autonomy and to the essential energy transition."
First offshore wind farm in France equipped with jackets
Saint-Brieuc is the first offshore wind farm in France equipped with jackets foundations. In 2014, following a consultation process with sea users and in particular with professional fishermen, Ailes Marines confirmed the use of this type of foundation.
Their lattice structures have a limited impact on the environment. They facilitate the circulation of water bodies and biodiversity while promoting the artificial reef effect.
These foundations with triangular bases, weighing 1,150 tons, 75 metres high and 25 metres square, are a metal lattice fixed to the seabed by three 18 to 47 metres long piles, previously installed by the Aeolus.
For their transport and installation, a fleet of five vessels is mobilised and piloted from the Ailes Marines maritime coordination centre in Pleudaniel (Côtes d'Armor):
- Two vessels for the installation, the Seven Borealis for lifting and installing the foundations, the North Sea Giant for sealing;
- Three tugboats (Kamarina, Eraclea, Onyx) and two barges (Sarens Caroline, H401) for transport.
Continuation of environmental security measures
During this work phase, Ailes Marines is continuing with the safety measures and environmental monitoring.
In addition, the partnership with CEDRE has enabled us to consolidate the pollution response system during the construction phase of the park, with the implementation of new protocols, responses methods and equipments.
This system was successfully tested during full-scale exercises at sea in the presence of CEPPOL (Centre d'expertises pratiques de lutte antipollution) and CEDRE in early 2022.
Two surveillance and information vessels are permanently on site during this phase of the work.
In addition, environmental monitoring of the works (turbidity, fisheries, marine mammals, birds, acoustics, etc.) is continuing throughout the installation of the park's components.
Information on the works for sea users
In order to inform the inhabitants and in particular the users of the sea, Ailes Marines has opened an online information space dedicated to the maritime works. It presents the nature and organisation of the works, as well as informations concerning navigation, in addition to the decrees issued by the Préfecture maritime.
About Ailes Marines
- 75 km2 in area
- 62 Siemens Gamesa SG 8.0-167 DD 8 MW wind turbines
- 496 MW of installed capacity
- 1,820 GWh/year of production, i.e. the annual electricity consumption of 835,000 inhabitants (including heating)