French Company Lhyfe Partners with EDP Renewables to Become the First Producer of Green Hydrogen in an Offshore Environment
The French company Lhyfe, specialized in the production of renewable and environmentally friendly hydrogen, has just launched the world’s first unit capable of producing hydrogen offshore. The company, which has a partnership with EDP Renewables for the expansion of hydrogen projects, takes a significant step in developing alternative energy sources with this inauguration. This marks the first time hydrogen will be produced in a maritime environment.
The Sealhyfe platform is located in Saint-Nazaire, France, and will begin an 18-month testing phase off the coast of Le Croisic, at the offshore testing site maintained by the French Engineering School Centrale Nantes.
During the official inauguration of the Sealhyfe platform, Matthieu Guesné, founder and CEO of Lhyfe, recalled the devastating effects of the drought that occurred this summer across Europe. He emphasized that the consequences of global warming will continue to be felt in the coming decades. Therefore, it is necessary to take appropriate measures starting now.
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Brazilian scientists are simultaneously advancing two research projects on clean hydrogen and driving solutions that could transform the energy matrix, enhance industrial competitiveness, and accelerate large-scale emission reduction targets.
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Advancement in renewable energy: A R$ 150 million project launched by Petrobras and Finep aims to create state-of-the-art electrolyzers for green hydrogen, strengthening national research and preparing Brazil to compete in a billion-dollar energy market.
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Illiterate or semi-literate grandmothers were trained to repair solar systems, open rural workshops, and light up homes that still depended on kerosene.
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The world has bet on green hydrogen as the fuel of the future, but now faces the side effect: producing 1 kilogram requires about 9 liters of ultrapure water, and the largest projects on the planet are precisely in the driest regions of the Earth, where water is already scarce for people.

Sealhyfe Has the Capacity to Produce Up to 400 Kg of Green Hydrogen Per Day, Equivalent to 1 MW of Power
The company assures that by 2035, the offshore hydrogen system could represent an additional installed capacity of about 3 gigawatts (GW) for Lhyfe. Currently, Sealhyfe is capable of producing up to 400 kg of green hydrogen per day, which is equivalent to 1 megawatt (MW) of energy. However, by that time, the company anticipates that offshore will represent a much larger additional installed capacity.
Guesné highlighted that the seas represent a “great opportunity” in this matter due to the fact that they “absorb 92% of global warming.” Emphasizing the need to “abandon the short-term perspective,” he stated that the oceans offer a “great opportunity” and that we must embrace it as soon as possible.
Investment in green hydrogen generation at sea is the great solution, which is why the corporation is working hard on this. The problem can be addressed using offshore investment as a strategy to decarbonize industries and transportation. The project leaders support this technique, stating that it has the potential to generate 18 times more energy than is needed for global consumption.

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