The hydrogen future starts now!

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The project pipeline

Step 1

10 MW Demonstrator (OWF Global Tech I)

Overview of offshore wind projects at German northsea

Source: Stiftung Offshore Windenergie

Desalination and electrolysis are carried out on a H2-production platform, mounted on top of a bottom-fixed foundation. All components are tested for production, storage, and re-electrification. Input data is provided for research projects, aiming to achieve proof of concept by 2028.

Step 2

300 MW Pre-Commercial Project (European OWF area)

Overview of offshore wind projects in Europe

Source: 4C-Offshore

The project involves a 300 MW production platform. H2-transport will be facilitated either via pipeline or ship. The technical concept will be developed further under a funding regime.

Step 3

> 1 GW Scale (globally applicable)

World overview of wind potentials

Source: Global Wind Atlas

The project involves a 300 MW production platform. H2-transport will be facilitated either via pipeline or ship. The technical concept will be developed further under a funding regime.

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10 MW Demonstrator: Global Tech I

Alpha Ventus

We are developing a demonstration project to validate the feasibility of hydrogen production under challenging offshore conditions. With an installed electrolysis capacity of 2×5 MW, the project is integrated into Global Tech I, one of Germany’s commercial offshore wind farms. It leverages the existing foundation and operational setup to minimize additional infrastructure requirements. The initiative also features a self-sufficient research platform designed to test all critical technical components, including desalination, electrolysis, hydrogen storage, and re-electrification processes.

LoI to jointly develop the H2-Demo-Project was signed on 13th October 2025 between:

Northsea Hydrogen Logo
Alpha Ventus Logo

What we want to achieve:

  • A proof of concept for offshore electrolysis
  • Performance data of Electrolysis process coupled with fluctuating renewable energy
  • Compatibility assessment of auxiliary equipment such as compressor and desalination plant with electrolysers under fluctuating electricity and offshore environment
  • Investigation of hydrogen intermediate storage and re-electrification for emergency power supply with the produced hydrogen
  • Visibility for all involved partners (research institutions, regulatory bodies, industry, finance, insurance)
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Our 300/1000 MW Platform concept

300/1000 MW Platform concept
Harnessing the immense wind resources far out at sea, the project focuses on creating a production facility operating in „island mode“ without the need for a grid connection. An offshore platform serves as the core of the system, housing all necessary electrical and technical equipment, a control center, as well as facilities for desalination, electrolysis, and hydrogen storage. Thanks to its modular design, the system is highly scalable, with each module offering a capacity of 300 MW. The produced hydrogen is transported either by ship or pipeline, ensuring flexibility and efficiency in delivery.

What we want to achieve:

  • Production of up to 70,000t of green hydrogen per year at an industrialized level
  • Highest level of redundancy and security against foreign influence
  • Green Hydrogen “Made Localy”
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The H2 Production flow

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Storage and offshore handling

Storage and offshore handling
Small buffer tanks on the topside ensure re-electrification capabilities, while an underwater hydrogen storage system exceeding 500 MWh per unit is under development.

A Double Anchor Loading (DAL) system enables the efficient offloading of hydrogen to shuttle tankers. Additionally, the platform includes an offshore refueling station for hydrogen-powered Service Operation Vessels (SOVs) and Crew Transfer Vessels (CTVs), supporting sustainable maritime operations.

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Transport solutions

Transport solutions

Pipeline

  • Germany: AquaDuctus – directly connected to German H2 Core-Network via Wilhelmshaven
  • Gaseous transport of H2 @ 100bar

Vessel

  • Vessel dimensions (L x W): 215 m x 32 m
    100 % Hydrogen energy supply/zero emission
  • Highest automation level
  • H2 transport capacity: 500 tons @ 250 bar
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Development team

Development team
  • Developed and realized the “HY.City.­Bremerhaven” H2-fueling station
  • Strong and wide personal network
  • Practical H2 experience
  • Project develop­ment
  • Technical project mana-gement for offshore wind, hydrogen and marine infrastructure projects
  • Project development & construction; Technical Experts & Advisors
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  • Naval/marine engineering services
  • Heavy steelwork (offshore platforms)
  • Ship building
  • Full-Service Ship Manage­ment / Vessel owning and brokerage / Offshore Living Quarters
  • Transport & Installation / Decommissioning / Offshore Support
  • Special Maritime Trans­por­tation / Salvage / Deep-Sea-Technology Development
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Development timeline

  • 2021

    Conceptional design, Establishing project consortium, Networking, Discussion with politics and authorities
  • 2022-2023

    Early project development, Approach potential investors, Discussion with offtakers
  • 2024

    Site allocation 10 MW Demonstrator
  • 2024-2028

    10 MW Demonstrator OWF Global Tech I:

    Project Development, Fabrication, Installation, Commissioning

  • 2028

    10 MW Demonstrator:

    Operational phase, Hydrogen production, 
Testing and research → proof of concept

  • 2028-2030

    Know-how transfer to 300 MW pre-commercial project:

    Secure suitable sea area (auction), Project development, Permitting process, Supply agreements, Financial close

  • 2030-2032

    10MW-Demonstrator: Operational phase, Hydrogen production, 
Testing and research, Decommissioning

    300MW pre-commercial project: Fabrication, Installation, Commissioning

    1 GW commercial project: Secure suitable sea area (auction), Project development, Permitting process, Supply agreements, Financial close

  • 2033-2036

    300MW pre-commercial project: Operational phase, Hydrogen production → ~20,000t H2/year

    1 GW commercial project: Fabrication, Installation, Commissioning

  • 2036-2066

    300MW pre-commercial project: Operational phase, Hydrogen production → ~20,000t H2/year

    1 GW commercial project: Operational phase, 
Hydrogen production → ~70,000t H2/year

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Contact

The hydrogen future starts now!

What’s in it for you? Let’s talk!

Andreas Wellbrock
Managing Partner

NorthH2 Projektgesellschaft mbH
Am Lunedeich 156, 27572 Bremerhaven
Cph: +49 172 754 6336
a.wellbrock@northseahydrogen.de