Our Vision
Wilhelmshaven from above

Our Vision

Uniper is transforming Wilhelmshaven into a central energy hub for the import and production of green hydrogen-based energy sources.

To reach its net zero targets, Germany needs large volumes of green energy sources. Currently, it cannot produce enough renewable electricity domestically and therefore energy imports and the expansion of offshore wind farms in the German North Sea are vital. Investing in both the import and production of renewable energy carriers ensures diversification of supply and a reduction of Germany’s dependency on singular energy suppliers in the future.

With Green Wilhelmshaven, we will help ensure the security of supply of Hydrogen products in Germany and large parts of continental Europe. Furthermore, this large-scale project will also ensure value-adding in the region both my creating new jobs in the area and by driving the energy transition in Germany – and Europe – forward.

Why Wilhelmshaven?

  • The only German deep-water port which offers easy access for large vessels.
  • Set to receive over 4 GW of offshore wind.
  • Access to the largest hydrogen storage cavern field in Germany.

Uniper will utilize these advantages to develop its Wilhelmshaven sites into a significant hydrogen supply hub for customers all over Germany.

Green Wilhelmshaven will have:

  • A hydrogen pipeline connection and a tie-in point to the future European Hydrogen Backbone.
  • Access to future hydrogen off-takers in Lower-Saxony, North Rhine Westphalia and other German industrial clusters.
  • Access to local hydrogen underground storage at the Etzel salt cavern site.
North sea

To operate as a major landing and production site for hydrogen, Wilhelmshaven will require an efficient hydrogen infrastructure. This will be achieved by the construction of new dedicated hydrogen pipelines making the location fit for the future of a hydrogen economy.

End-users of our products are industrial off-takers all over Germany. We expect initial demand for green hydrogen from steel producers, the chemical industry and refineries. With the expanding German hydrogen backbone, customers in Lower-Saxony and other parts of Germany will be supplied from Wilhelmshaven.

The Wilhelmshaven site

The Wilhelmshaven site

The import of coal and oil and the operation of two coal-fired power plants have long distinguished Wilhelmshaven as a leading German energy hub. With the decommission of coal-fired power plants and decarbonization of energy imports, Wilhelmshaven is now facing a major transformation as an energy and industrial location, with enormous opportunities to become a hub for green energy sources for the whole of Germany. This will in turn transform and strengthen the region economically. Wilhelmshaven has several unique qualities which make it suitable for such a hub.

North sea


As Germany’s only deep-water port, on the German North Sea coast, Wilhelmshaven offers easy access for large vessels to import hydrogen in the form of ammonia. The port is also set to be the landing point for major offshore wind farms due to be erected in the German North Sea, making it ideal for large scale electrolyzers. Further advantages of the region include its proximity to nearby salt caverns such as Etzel or Krummhörn used for large-scale storage of hydrogen and the early connection to the hydrogen pipeline for the European Hydrogen Backbone project. Other activities in the region outline the vast potential of the unique location of Wilhelmshaven. Uniper proudly supports and engages in projects like the Energy-Hub Port of Wilhelmshaven.


Our Project

Our Project

Green Wilhelmshaven will see both the construction of an ammonia import terminal and a 1 GW electrolysis plant for the production of hydrogen. The electrolyzer, in combination with the import terminal, would be capable of supplying around 300,000 metric tons of hydrogen, or 10-20% of the demand expected for all of Germany in 2030.

Uniper could supply between 10-20% of the entire German hydrogen demand by 2030 from Wilhelmshaven.

Graphic GreenWHV.en

Projects of Common Interest (PCIs)

The European Projects of Common Interests (PCIs) are important cross-border infrastructure projects linking the energy systems of the EU and third countries. They are designed to help the EU achieve its energy and climate policy goals: affordable, secure, and sustainable energy for all citizens and the long-term decarbonization of the economy in line with the Paris Agreement. 

Projects are selected which have a significant impact on energy markets and market integration, boost competition in energy markets and contribute to the EU's energy security through the diversification of energy sources, as well as contribute to the EU's climate and energy targets through the integration of renewable energy.

Uniper has submitted its project proposal in the PCI process. The process is pending with project assessments and decision on PCI status expected in 2023. For more information on PCIs please visit the European Commission website.

Ammonia Terminal

Why ammonia?

  • By 2030, The German Federal Government predicts that demand for hydrogen could grow to 90-110 TWh/a.
  • Large-scale imports are necessary since domestic production capacities for green hydrogen are not sufficient.
  • Ammonia is the more easily transportable form of hydrogen via large-scale ships to Germany and Europe. Other transport vectors like liquefied hydrogen (LH2) or liquid organic hydrogen carriers (LOHC) are expected to remain in the development stage for several years, and shipping capacities are limited.
  • Since ammonia is an important feedstock for various industrial processes, a well-developed market is already established (around 180 million tons of annual consumption worldwide).
  • Handling, transportation, storage and usage of ammonia are well-established processes, with high safety standards. 

Why electrolysis?

  • Electrolysis is used to convert the abundant but volatile wind energy into hydrogen. This can be transported and stored very efficiently.
  • Offshore wind energy is landing on the German North Sea coast (current expansion targets of the German government: 4 GW). However, onward transport to the south is complex and expensive with new power lines being required.
  • Large-scale electrolysis in Wilhelmshaven can directly absorb significant amounts of wind power and convert it into hydrogen.
  • The electrolysis and the entire downstream hydrogen infrastructure act as a “shock absorber”, which store the wind energy as hydrogen and make it transportable under strong wind conditions.

Uniper's large scale electrolyzer will be optimized to serve several purposes:

  • It must produce large volumes of hydrogen in an economical way.
  • It can play a significant role for the operation of the regional power grid.
  • Transmission System Operators (TSO) will benefit from the fact that the electrolyzer can be flexibly adjusted to the situation of the grid: If there is too much power being generated on a windy day, the production rate of the electrolyzer can be increased, thus relieving the load on the electrical power grid.
  • On days with too little generation of green electricity, the production rate of the electrolyzer can be lowered to consume less power.
  • In order to fully utilize these grid-serving capabilities of the electrolyzer, Uniper and TSOs will work closely together to ensure the full integration of both systems.
Electrolysis plan


Green Wilhelmshaven is Uniper’s flagship hydrogen project.

Uniper’s Green Wilhelmshaven project aligns with the European hydrogen strategy, which underlines the ambitious goals towards a climate neutral European economy and the substantial role of green hydrogen for the required transition.

The project is listed in the Ten-Year Network Development Plan (TYNDP) for 2022 published by the European Network of Transmission System Operators for Gas (ENTSOG). This not only marks a major milestone in the project’s development, but it also demonstrates its relevance in European climate and energy ambitions. 

The TYNDP is published biennially in accordance with EU regulation to map current and future European gas infrastructure as well as possible development scenarios. The Plan also includes security of European gas supply and network stability. Projects listed in the TYNDP are vetted thoroughly by ENTSOG and are critical for long-term development of European energy supply. 

As a key cross border infrastructure project, Green Wilhelmshaven advances the linkage of energy systems in Europe and thus proves to be of pan-European importance. The amounts of renewable energy generated as well as supplied by Green Wilhelmshaven significantly bolster energy stability and advance sustainability. 


Energy-Hub - Port of Wilhelmshaven

Offshore Wind Farm

In 2020, a group of companies, organisations and regional stakeholders formed the “ENERGY-HUB Port of Wilhelmshaven” initiative. Its goal is to put Wilhelmshaven on the European energy map and strengthen its role as a source for conventional and green energy for the region and the whole of Germany. The members of the “ENERGY-HUB Port of Wilhelmshaven” initiative are active in the import, production, storage and transportation of hydrogen and hydrogen derivatives, natural gas, oil, coal and the generation of renewable energies. For more information on the initiative visit www.energyhub-wilhelmshaven.de.

Our global presence

We continue to strengthen our presence in key markets, develop innovative solutions and acquire companies in prioritized areas. Uniper solutions are sold to over 100 countries and we currently operate in over 40 countries.