Sealhyfe: an offshore hydrogen project

Sealhyfe, is the first prototype for the production of renewable offshore hydrogen from Lhyfe in Saint Nazaire, France.

Share:

Comprehensive energy news coverage, updated nonstop

Annual subscription

8.25$/month*

*billed annually at 99$/year for the first year then 149,00$/year ​

Unlimited access • Archives included • Professional invoice

OTHER ACCESS OPTIONS

Monthly subscription

Unlimited access • Archives included

5.2$/month*
then 14.90$ per month thereafter

FREE ACCOUNT

3 articles offered per month

FREE

*Prices are excluding VAT, which may vary depending on your location or professional status

Since 2021: 35,000 articles • 150+ analyses per week

Sealhyfe, is the first prototype for the production of renewable offshore hydrogen from Lhyfe in Saint Nazaire, France.

An innovative solution

Sealhyfe will have a capacity of 1MW and will have a connection to a floating wind turbine. Lhyfe already operates a renewable hydrogen production facility using water electrolysis. The company plans to set up similar land-based facilities throughout Europe.

With Sealhyfe, Lhyfe is exploring the idea of developing and operating offshore renewable hydrogen production platforms. They can be positioned on existing fixed structures or on fixed or floating foundations. By 2030-2035, the offshore sector could represent an additional installed capacity of around 3GW for Lhyfe.

A first prototype

Nantes Saint-Nazaire is the first major port facility for hydrogen on the French Atlantic coast. The collaboration between Nantes Saint-Nazaire port and Lhyfe will allow an innovative partnership in parallel with the identification of industrial needs.

This collaboration will identify solutions for bringing renewable hydrogen produced at sea to land. Matthieu Guesné, CEO and founder of Lhyfe, says:

“The development of offshore hydrogen production is the next big challenge ahead of us. Following the integration and inauguration of our Sealhyfe platform at the Saint Nazaire port facility, we will continue to work with this port facility, which has a wealth of related expertise, to accelerate the development of solutions that will enable the decarbonization of mobility and industry on a large scale, in all coastal regions.”

Nantes Saint-Nazaire Port believes in the partnership with Lhyfe to produce renewable hydrogen on a large scale.

In Inner Mongolia, Xing’an League is deploying CNY6bn in public funds to build an integrated industrial ecosystem for hydrogen, ammonia and methanol production using local renewable resources.
Despite a drop in sales, thyssenkrupp nucera ends fiscal year 2024/2025 with operating profit, supported by stable electrolysis performance and positive cash flow.
ExxonMobil’s pause of the Baytown project highlights critical commercial gaps and reflects the impact of US federal cuts to low-carbon technologies.
State-owned Chinese group Datang commissions a project combining renewable energy and green hydrogen within a coal-to-chemicals complex in Inner Mongolia, aiming to reduce stranded asset risks while securing future industrial investments.
Möhring Energie Group commits to a green hydrogen and ammonia production project in Mauritania, targeting European markets from 2029, with an initial capacity of 1 GW.
Air Liquide deploys two hydrogen-powered heavy-duty trucks for its logistics operations in the Rotterdam area, marking a step in the integration of low-emission solutions in freight transport.
French hydrogen producer Lhyfe will deliver over 200 tonnes of RFNBO-certified hydrogen to a heavy mobility operator under a multi-year contract effective since 1 November 2025.
Plug Power was selected by Carlton Power to equip three UK-based projects totalling 55 MW, under an agreement subject to a final investment decision expected by early 2026.
Hyroad Energy expands its services to include maintenance, software, and spare parts, offering a comprehensive solution for hydrogen freight operators in the United States.
Air Liquide has launched in Antwerp the first industrial-scale pilot unit for converting ammonia into hydrogen, marking a key technological milestone in the global low-carbon hydrogen supply chain.
Ohmium reached an iridium utilisation rate of 18 GW/ton for its electrolyzers, significantly surpassing the 2030 target, through technological advances that lower hydrogen production costs.
The European Commission opens its first call for hydrogen suppliers with a new matchmaking platform aimed at facilitating investment decisions in the sector.
Ballard Power Systems reports a significant increase in revenue and reduced losses, supported by deep restructuring and positive developments in its main commercial segments.
The inclusion of hydrogen in China’s 15th Five-Year Plan confirms a public investment strategy focused on cost reduction, domestic demand stimulation and geo-economic influence across global markets.
EDF power solutions has inaugurated a hydrogen pilot plant at the Norte Fluminense thermal power plant, with an investment of BRL4.5mn ($882,000), as part of Aneel's R&D programme.
Plug Power plans to generate $275mn by divesting assets and reallocating investments to the data center market, as part of a strategy focused on returns and financial discipline.
GreenH launches construction of three green hydrogen projects in Bodø, Kristiansund and Slagentangen, backed by NOK391mn ($35.86mn) in public funding, aiming to strengthen decarbonised maritime supply along Norway’s coast.
Nel ASA becomes technology provider for the Enova-supported hydrogen sites in Kristiansund and Slagentangen, with a combined minimum capacity of 20 MW.
French hydrogen producer Lhyfe has signed an agreement to supply 90 tonnes of RFNBO-certified hydrogen to a private fuel station operator in Germany for a fleet of buses.
Loblaw and FortisBC are trialling a hydrogen-powered heavy truck between Vancouver and Squamish, marking a step in the integration of low-emission solutions in Canada’s grocery logistics.

All the latest energy news, all the time

Annual subscription

8.25$/month*

*billed annually at 99$/year for the first year then 149,00$/year ​

Unlimited access - Archives included - Pro invoice

Monthly subscription

Unlimited access • Archives included

5.2$/month*
then 14.90$ per month thereafter

*Prices shown are exclusive of VAT, which may vary according to your location or professional status.

Since 2021: 30,000 articles - +150 analyses/week.