Boxhy project: Lhyfe wants to reoxygenate the Baltic Sea

Boxhy project
Boxhy project: Lhyfe wants to reoxygenate the Baltic Sea

Alongside its developments in offshore wind power, the green hydrogen producer wants to help reoxygenate the oceans. There’s news from Flexens and the Department of Ecology, Environment and Plant Sciences (DEEP) at Stockholm University.

In a previous article, we wrote that work had begun as early as June 2020. It involves several research organisations, including the research Institute for Development *(IRD) in Brest. The company’s founder, Matthieu Guesné, has been thinking about this since it founded Lhyfe in 2017. This time, Lhyfe is tackling the challenge of revitalising the Baltic Sea with oxygen, in association with the Finnish company **Flexens, a regional developer of hydrogen projects, and the Department of Ecology, Environment and Plant Sciences (DEEP) at Stockholm University.

The project is called Boxhy (Baltic Sea Oxygenation and the Super-Green Hydrogen Economy). It will lead to the establishment of a pilot oxygen injection site.

The Boxhy project is supported by an international group of experts

To make it simple, Deep Oxygen Injection, also known as DOI, is a method where pure oxygen gas is released deep under the water’s surface, below a region where strong changes in water density occur (pycnocline). This is done using a system that spreads out the oxygen evenly with micro-bubbles. The strategy is therefore to use the oxygen co-produced during the electrolysis of the water to rejuvenate marine ecosystems.

Oxygen demand below the pycnocline in the Baltic Sea and Gulf of Finland is estimated at between 10,000 and 15,000 tonnes per day. It should be noted that the project is also supported by the Science and Technology Advisory Committee (STACO), a group of 9 oxygenation experts from around the world.

*IRD: Institut de Recherche pour le Développement (in French)

**Of which Lhyfe is a shareholder

Do you want to learn more about Lhyfe? Then our latest articles about the company should interest you. You can access all our articles written on Lhyfe here.

Article written by Laurent Meillaud and translated by Logan King 

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About the author

Logan King

Logan King

After an unusual career (3 years in the French army followed by a 3-year degree in Applied Foreign Languages), it was my passion for environmental issues that finally caught up with me and led me to join Seiya Consulting and H2 Today in June 2022. First as an end-of-study internship, then as Marketing & Communication Manager and translator at Hydrogen Today.

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