Certification success for Naval Energies' floaters

In: Windfarms
DNV GL has certified Naval Energies' floating foundation design basis for the Groix & Belle-Île wind farm as well as its calculation and design methods for its floaters in general.

Obtaining this certification demonstrates that Naval Energies’ calculation and design methods are applicable for the company’s semi-submersible foundation technology and are aligned with DNV GL’s floating wind standard and recommended practice.

The detailed assessment carried out by DNV GL focused on the overall calculation methods related to hydrodynamics, structure, anchoring and tank test campaigns. It resulted in an approval, documented in a certification report, of the calculation and design methods applicable for Naval Energies’ semi-submersible floater. This certification shows that Naval Energies' calculation and design methods are applicable for the company's current and future floating wind projects.

Laurent Schneider-Maunoury, President of Naval Energies, said: "Our objective is to produce, for the pilot farm of Groix & Belle-Île, of which we are partners, but also for future commercial farms in France and worldwide, a floater with the highest standards combining quality, durability and of course technical and economic performance. This certification, issued by an independent body that is an expert in our sector, is a major step forward. By providing proof of the robustness of our calculation and design methods, it brings certainty and therefore confidence to our current and future customers, an essential prerequisite for the industrial and commercial development we are aiming for."

The DNV GL certification of design basis and design methods is the first step towards confirmation of the overall technical safety of Naval Energies' floating wind technology. The floater is designed to withstand extreme weather and climate conditions at sea, over long periods of time

TheGroix & Belle-Île pilot wind farm was selected as winner of the ADEME’s call for floating demos in 2016. It is overseen by the company Ferme Eolienne Flottante de Groix & Belle-Île (FEFGBI) which is owned by EOLFI, CGN Europe Energy, Meridiam SAS and Caisse des dépôts et consignations..

Located 22 km offshore in water depths of 60 metres, the project represents a €230 million investment and will test several technological innovations adapted to a floating environment. Following financial close, installation of the moorings, cables and final tow-out of the turbines will take place throughout 2022 and 2023 with commissioning in summer 2023.

For more information on floating offshore wind farms worldwide, click here.

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