Companies Aim to Advance in the Exploration and Development of Specific Solutions for Offshore Green Hydrogen Production
Subsea7, a global leader in the delivery of offshore projects and services for the evolving energy industry, has signed a Memorandum of Understanding with OneSea Energy, a Dutch hydrogen technology developer, aiming to contribute to the offshore green hydrogen production sector.
According to the agreement, OneSea and Subsea7 will jointly explore and develop specific field solutions that enable offshore hydrogen production.
The companies intend to conduct development studies together, as well as continue researching and evaluating appropriate ideas and technologies to promote and accelerate the large-scale expansion of offshore green hydrogen.
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In this regard, OneSea already has a track record of developing multiple concepts for producing floating green hydrogen, whether in shallow or deep waters. According to the company, its goal is to evolve into the main supplier of green hydrogen production solutions.
Additionally, the company also stated that it is leveraging its team’s experience to implement large-scale energy projects worldwide.
What Is Green Hydrogen?
Hydrogen gas has a significant energy potential, being applied in sectors where decarbonization does not rely on other renewable energy sources, such as wind and solar energy. However, currently, the gas is still produced using non-renewable and polluting energy sources.
In this sense, there is a possibility of increasing the use of renewable sources for this production, generating what is called green hydrogen. It is useful in various distinct areas, from transportation to industry, being considered the “energy of the future.”
Despite hydrogen being the most abundant chemical element in nature, it is also one of the most reactive. Thus, it is seldom found alone, as it usually forms part of other substances, such as various gases and water.
To form green hydrogen, water molecules are separated through a process called electrolysis, which consists of passing an electric current through water, responsible for distancing hydrogen and oxygen atoms. Thus, two different gases are generated.
Among the advantages of green hydrogen, it can be mentioned that it is not intermittent or weather-dependent, unlike wind, solar, and hydropower sources. Moreover, it can be used in sectors where the application of other renewable energy sources would not be sufficient to meet the need to reduce emissions, and in its production, the excess generated by other sources that have no use can be utilized.
About Subsea7
Subsea7 is a Norwegian company based in the United Kingdom. As mentioned, it is a global leader in the delivery of offshore projects and services for the evolving energy industry. More specifically, the company works with services involving subsea engineering and operation of PLSVs, which are vessels for laying lines.
Subsea’s offshore operations extend over five decades, having worked on more than a thousand projects. Furthermore, the company deals with all water depths in all energy hubs, having expertise in engineering, alliances, and specialized technologies.
About OneSea Energy
OneSea is a Dutch company that provides, builds, and operates complete floating hydrogen production solutions.
The company has developed concepts to generate floating hydrogen in both shallow and deep waters, which integrate decades of experience in designing, providing, and operating offshore energy production units worldwide.

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