The Baltic Sea Oxygenation and the Super-Green Hydrogen Economy project (BOxHy) has been endorsed under the United Nations Decade of Ocean Science for Sustainable Development 2021 to 2030. The project is a collaboration between Flexens, a developer of hydrogen projects with a strong regional focus; Lhyfe, a developer of onshore and offshore production of green and renewable hydrogen for mobility and industry; and the Department of Ecology, Environment and Plant Sciences (DEEP) at Stockholm University, with expertise in marine ecology monitoring and a focus on both fundamental and applied Baltic Sea research.

By adapting existing technologies to oxygenate the sea, the project aims to restore aquatic vitality and explore the potential for sector coupling with green hydrogen production, offering a sustainable model for environmental restoration and economic development.

The project will inject oxygen into the Baltic Sea via offshore hydrogen production using water electrolysis, an adapted and existing technology.

The project began in October 2023 and is supported by the Baltic Sea Action Plan Fund. BOxHy will evaluate suitable coastal locations for conducting a pilot study of reoxygenation of marine ecosystems through the oxygen co-produced during this water electrolysis to set a precedent for innovative solutions in marine conservation and green energy integration.

Learn more here.