08/12/2021 – Energy / Renewables / Wind Turbines / Green / Hydrogen / Floating / Lhyfe / DORIS

Lhyfe and DORIS sign MoU to launch first floating wind turbine for integration with hydrogen production system
Lhyfe and DORIS sign MoU to launch first floating wind turbine for integration with hydrogen production system

Lhyfe, a world pioneer and pure player in renewable green hydrogen production, and DORIS, an integrated engineering and project management group and a leader in offshore technology, have joined hands to step up their work on offshore hydrogen production. Together they plan to launch the first floating wind turbine for integration with a hydrogen production system and identify larger-scale opportunities for their solutions.

The new Memorandum of Understanding (MoU) between Lhyfe and DORIS follows a 12-month-long joint R&D programme focused on developing economically viable offshore green hydrogen production solutions. 

“In committing to work together under this agreement, DORIS and Lhyfe wish to combine their outstanding technical innovations and excellence in their respective fields of expertise, while fostering a relationship of mutual trust and understanding,” the two France headquartered firms announced in a joint statement. 

Nerehyd – an exclusive proprietary solution from DORIS and Lhyfe 

The signing of the MoU by the two companies comes just a few weeks after Lhyfe's Bouin production site in Vendée began producing the first few hundred kilos a day of carbon-free green hydrogen. The operational knowledge gained from this ‘world first’ will be employed to finalise the development of DORIS' and Lhyfe's proprietary solution NerehydTM. This exclusive product combines Lhyfe's expertise in green renewable hydrogen production with DORIS's floating wind turbine solution NerewindTM. The NerehydTM solution, which incorporates a hydrogen production facility into the floater of a wind turbine, could be deployed for on-grid or off-grid applications, from small-scale 10-megawatt wind turbines to large-scale wind farms with several hundred megawatts of capacity.


The budget for the project – including R&D and the production of the first prototype, due in 2025 – will be in the region of €60 million.

Doris and Lhyfe’s MoU objectives


The objectives of the two partners are to:

• Finalise the solution's design;

• Overcome the main technical and economic obstacles;

• Develop and finance a pilot project;

• Identify target projects for industrial-scale deployment.


"While we have no doubts that producing green hydrogen on land will be the first step in large-scale global development, we deeply believe in the need to move rapidly offshore to meet the strong demand ahead, which will require a massive amount of electricity,” advised Mr Xavier Grandiaud, Executive Deputy Managing Director of DORIS Engineering. 

The perfect tool for large-scale green hydrogen production

“With Lhyfe, we believe that offshore production will be the best way to successfully produce large amounts of green hydrogen without impacting terrestrial landscapes or relying on an existing grid connection,” Mr Grandiaud continued. “Our NerehydTM solution is the perfect tool for large-scale, sustainable and economically viable green hydrogen production. With Lhyfe, we now have all the keys in hand to make Nerehyd a success."


Matthieu Guesné, CEO and founder of Lhyfe, added: "We are delighted to be moving forward on our projects with DORIS. At Lhyfe, the reason we located our first production site near the ocean was to start producing in offshore conditions, because from day one we have been certain of one thing: offshore is the key to the massive development of renewable hydrogen. We are starting to see more and more offshore wind farms and traditional players are keen to find ways to scale-up their infrastructures and solutions. We are therefore very optimistic about the development of this sector and are working to offer a range of solutions to adapt to each situation".


In addition to the joint development of NerehydTM, which is the partnership's core focus, Lhyfe and DORIS will also be studying the possibility of extending the collaboration to other types of offshore hydrogen production solutions.

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