Producing hydrogen with wind turbines at sea, the incredible bet of Le Crosique’s life

Moored in the port of Saint-Nazaire, Sealhaif, the inexperienced hydrogen producer Lhyge electrolyzer (mounted on the Wavegame wave platform designed by the Saint-Nazaire firm Gapes Techno) will be a part of the storm and wind take a look at web site subsequent spring. Sem-Rev in the sea, positioned about twenty kilometers off the coast of Le Croisique.

An area of one sq. kilometer, adopted by the state, prohibited to navigation and since 2018 outfitted with Flotgen floating wind turbines, related to the Earth by way of a connection hub positioned at a depth of thirty meters. ” The objective of this operation is to validate offshore hydrogen manufacturing expertise earlier than contemplating large-scale industrial deployment by 2024.”Thomas Krech, Lhyfe’s technical director, explains.

Over the subsequent six months, the now “ready-to-build” set up, expertly designed by Chantiers de l’Atlantique, will probably be examined on the wharf. “We need to make a reference and comparability in the administration of marinization issues. All design and materials adjustments will probably be verified at the dock earlier than the platform is shipped offshore in March or April, when entry situations to the take a look at web site will probably be extra favorable”he added.

A problem to competitors

This demonstrator, related by a kilometer and a half cable to the Sem Rev take a look at web site, will then be at sea for a yr, to confirm the reliability of the manufacturing course of in actual situations, on a barge that floats, strikes. .. and can transmit all knowledge to the Lhyfe headquarters in Bouin (85), which itself will pilot the Sealyfe platform. A posh operation whose examine for cable routing was entrusted to the specialist design workplace in the discipline of marine renewable power (MRE) Kraken Subsea Solutions.

“Probably, offshore wind farms are 20 to 50 instances bigger than these on land and supply two to a few instances much less downtime.”Mentions Thomas Krech, who has been working with Chantiers de l’Atlantique for a yr and a half on the marinization of manufacturing processes, corresponding to methods to guard the saline surroundings, energy electronics administration and optimization distant upkeep actions. Avoid visiting the web site. “Corrosion, affect, wind gusts, 14-meter waves, cable motion… It has nothing to do with hydrogen manufacturing on land. And it is a actual aggressive problem for Lhyfe »Bernard Alessandrini, coordinator of SEM-Rev, admits.

Show that it’s potential and possible now »

This apprenticeship will allow Lhyfe to know offshore points for operations starting from laying cables to acquiring permits, to offshore hydrogen manufacturing.

“We have completed loads of vital work with state businesses. This will then permit us to maneuver shortly to industrial-scale initiatives,” Speculates Lhyfe’s technical director, who, with Chantiers de l’Atlantique, has developed an idea for a 100 MW platform, which may very well be in-built Saint-Nazaire. “The problem now’s to show that that is instantly possible and possible in a dependable and sturdy manner. Even in the most tough conditions.”

Also an enormous monetary problem for the platform which prices tons of of thousands and thousands of euros. In a market the place we nonetheless use 80 million tons of grey hydrogen, that will probably be changed, Lhyfe thinks. “Certified that renewable hydrogen manufacturing at sea is a wonderfully appropriate answer for large-scale deployment of hydrogen”. When it went public final May, the firm introduced that it was concentrating on a complete put in capability of 55 MW from offshore items by 2024; 200 MW in 2026, and a pipeline of 5GW initiatives. “We need to add 3GW with offshore initiatives by 2030-2035”, Directs the Technical Director of Lhyfe, whose financial mannequin goals to take a position and deploy electrolyzer initiatives in Europe.

About 90 information are in course of. In this sense, the firm has opened a sixth subsidiary in Newcastle, in the north of the United Kingdom, to assist its growth in the Northern European market (United Kingdom, Germany, the Netherlands, Belgium …). “In Europe, many nations have doubled or tripled their offshore wind ambitions. At the begin of the yr, Emmanuel Macron introduced that he was concentrating on 40 gigawatts of offshore wind energy in 2050. In Scotland, we’re open to affords of greater than 15 gigawatts from a 6 gigawatt goal in 2030. went”Thomas Kreich observes.

Lhyfe, the French start-up that sees itself as a world large of renewable hydrogen


ZOOM – Construction of take a look at websites on a basis

Fifteen years in the past by the École Centrale de Nantes to check MRE expertise in actual situations, the Sem-Rev sea trial web site is about to enter a brand new period when 4 take a look at websites in the French sea (Sem-Rev Le Croisic, Pimpol- for tidal turbines by EDF managed by Brehat, managed by Ifremer for low-power prototypes in Sainte-Anne du Portzic and Seeneoh in Bordeaux, for a river tidal turbine energy plant challenge) will be a part of the Open-C Foundation by the finish of the yr (Offshore Power and Energy Network Centre) .

First in Nantes, on the premises of Ecole Centrale, it ought to transfer to its personal premises by the begin of the 2023 college yr. “It will now be somebody who will construction, handle and animate the complete sector with its personal workforce, transferred from testing websites or future recruitment”. Created by ten founding members (Ecole Centrale, Eframar, Technip, EDF, RTE, and many others.), Open-C will profit from an working funds of 80 million euros over ten years to assist 300 to 400 million euros in initiatives. It can shortly accommodate the Mistral take a look at web site in Marseille and one other web site positioned for numerous amenities of 10 to twenty MW or 50 to 100 MW.

Limited to three.5 MW since its development by NDS attributable to the undersizing of coastal amenities, the Sem-Rev web site now plans to take a position 40 to 45 million euros over the subsequent 4 years to completely make the most of the 10 MW of filed export cables. In 2012. Baptized Sem-Rev 2.0, it should permit from subsequent summer time the operation of a second wind turbine and the creation of satellite tv for pc substations that may present floor connection sockets for the reception of small-scale initiatives, corresponding to Lhyfe or others , round floating photovoltaics. Sem -Rev 2.0 can even have an MRE exhibition middle and a enterprise incubator devoted to the sector.