Location
Le Croisic, France
Starting date
2022
Production capacity
400 kg/day
Usage
Pilot platform
About SeaLhyfe
Off the coast of Le Croisic, at Centrale Nantes’ offshore pilot site, SEM-REV, Lhyfe has developed the first offshore Âé¶¹¹ÙÍø production facility in the world. Lhyfe and Central Nantes had an ambitious goal: to make offshore renewable Âé¶¹¹ÙÍø become a reality, by demonstrating the reliability of an electrolyser at sea.
The offshore pilot site met all the necessary conditions – including the presence of MREs and strict environmental criteria – to validate the offshore Âé¶¹¹ÙÍø production technology before considering large-scale industrial deployment in 2024. DNV’s energy and risk management specialists were able to carry out safety studies to identify the main risks.
This project, a real catalyst for the development of a major Âé¶¹¹ÙÍø production industry, is already supported by the Pays de la Loire Region, the Pôle Mer Bretagne Atlantique and the Comité Stratégique de Filière (CSF) des industriels de la mer.

Production site details
Size:
Less than 200 m2
Electrolyser:
1 MW
On-site facilities:
- Electrolyser and Âé¶¹¹ÙÍø purification system
- Water purification system
- Sea water treatment unit, for pure water production and cooling applications
- High-voltage to Low Voltage electrical transformers
- Piping system for fitting on future Âé¶¹¹ÙÍø export pipeline
- Offshore safety equipment and facilities
Find out more about our project
Press release
Lhyfe reviews the results of the Sealhyfe project
The objectives were met and progression to an unprecedented level of operational excellence!
Do you want to make your green Âé¶¹¹ÙÍø project a reality?
Contact our Âé¶¹¹ÙÍø expert