The first WindFloat Atlantic platform with the 8,4 MW turbine fully installed has set off from the Spanish Port of Ferrol towards its final destination in the Atlantic Ocean, 20 km off the coast of Viana do Castelo in Portugal.
Once at the final location, the three floating structures – stretching 30 metres in height and with a distance between each one of their columns of 50 metres – will be installed to form the first floating wind farm in continental Europe.
The structure that has set off from the outer harbour of Ferrol comprises a floating platform and a wind turbine, the largest installed on a surface of these characteristics to date. In the coming months, two other platforms will be added to complete the windfarm which, with its 25MW installed capacity, will be able to generate enough energy to supply the equivalent of 60,000 users each year.
The project will speed up the commercial deployment of innovative WindFloat technology that harnesses the wealth of wind resources in transitional and deep waters, which were previously inaccessible.
WindFloat Atlantic project marks an important milestone for the industry as this is the first semi-submersible floating wind farm in the world.
Because it can be placed in very deep waters, WindFloat can unlock energy resources in vast areas of the sea, addressing major societal challenges, such as the clean energy transition, energy security and climate change, whilst bringing jobs, economic growth and opportunities for sustainable investment.
About WindFloat Atlantic
The project is led by the Windplus consortium, comprising EDP Renewables, Engie, Repsol and Principle Power. The facility has three wind turbines mounted on floating platforms which are anchored only with three catenary mooring lines to the seabed at a depth of 100 m. It includes cutting-edge technology that minimises the environmental impact and facilitates access to untapped wind resources in deep waters. This technology has wide-reaching benefits that enhance its accessibility and cost-effectiveness, including its aptness for dry-dock assembly and towing without the need for specialised towing craft, or the advantages of not having to rely on complex offshore operations associated with the installation of traditional bottom-fixed structures.
The partners that have made this project possible include Principle Power, the joint venture between Navantia/Windar, the A- Silva Matos Group, Bourbon, the wind turbine supplier MHI Vestas and dynamic cable supplier JDR Cables. anchoring and mooring specialist Vryhof was subcontracted by EPCI contractor Bourbon for the design support, management, site supervision and delivery of the full mooring system for the three floaters. The scope of work also included the documentation and certification of all components, such as Stevshark REX anchors in different sizes, cutter points, chains, connectors, synthetic lines and clump weights.
Installation of the foundations was successfully executed in July 2019.
Vryhof has engineered already dedicated anchoring solutions for almost every floater concept in development during the last few years. Including realistic cost comparisons. In generic terms, these variants can be grouped into semi-submersible, spar-type, barge-type, hybrid, and tension-leg designs. Their specific mooring lay-outs can vary from multi-line-spread-moored to turret-moored to single-point mooring.
Photo credit: DOCK90
See the video footage below of the departure from the Port of Ferrol.