Large-scale hydrogen hub to support Denmark’s green transition

Image: Eurowind Energy

The objective of the Green Hydrogen Hub Denmark project is to establish one of the largest green hydrogen production plants in the world and to combine it with underground hydrogen storage in the area between Hobro and Viborg.

The project has been on the drawing board since 2014 in collaboration with Eurowind Energy, Corre Energy, and Danish state-owned Energinet, and is named Green Hydrogen Hub Denmark (GHH). The aim is to establish a complete PtX value chain by 2025, consisting of an electrolysis plant, hydrogen storage plant and a number of industrial hydrogen consumers, including the Compressed-Air-Energy-Storage (CAES) facility.

The main purpose of GHH is to secure renewable energy irrespective of the weather. Specifically, the project explores the possibility of establishing a 350 MW electrolysis plant, a 200,000 MWh hydrogen storage facility and a 320 MW Compressed Air Energy Storage (CAES) facility which as the final link in the chain, can convert green hydrogen into electricity. By combining seasonal hydrogen storage and daily storage at CAES, consumers can receive 100 percent green electricity 24-7 throughout the year. In other words, the project will be able – based on wind and solar production – to balance the annual electricity consumption of 280,000 households.

In addition, green hydrogen can also be supplied as a sustainable fuel for industry, heavy goods transport, shipping, etc. GHH can contribute to the European Green Transition by potentially displacing 600,000 tons of CO2 per year, making the project groundbreaking. The project is currently under investigation and the partners involved are excited about the possibilities it will bring.

Together with the other partners, Eurowind Energy will develop a hydrogen facility to create optimal conditions for the storage of wind and solar energy.

The timing for formalizing the value chain that we have been working on for so long is perfect. As a local company in Mariagerfjord Municipality, we aim to make a difference for the local society and to set Mariagerfjord on the World map. We have been working on this project for many years, and we are happy to have reached the point where we can now go public with the project, and we look forward to the future collaboration. Green Hydrogen Hub Denmark is a pioneering project with an international perspective that can solve a significant part of our challenges by storing renewable energy. PtX is a central part of the green transition, and the hydrogen is the very core in PtX. This is just one of many reasons that Green Hydrogen Hub Denmark is an important step towards our future energy society.”

 Jens Rasmussen, CEO of Eurowind Energy.

Corre Energy will be the lead developer of the hydrogen-fueled CAES facility and will coordinate development across the entire project, leading key commercial and financing activities.

As a pioneer of hydrogen fuelled Compressed Air Energy Storage (CAES) projects in Europe, we see the complementary application of hydrogen-based storage systems and electrolysis as a fundamental enabler to achieving the full decarbonisation of the Danish energy system. The ability to store renewables over long periods can deliver significant value across the energy system , reducing Green House Gases (GHG), reducing electricity costs and replacing traditional fossilbased power plants. The project will be multipurpose by providing both electricity and hydrogen products to a range of customers with innovative business models to further enable the investment cases of large-scale renewables projects. The Green Hydrogen Hub Denmark will be a significant step to realising our pipeline of integrated hydrogen production and storage projects across Europe acting as a pathway towards deep decarbonisation.”

 Keith McGrane, CEO Corre Energy. 

Gas Storage Denmark (GSD), which is part of Energinet, is already running Denmark’s two underground gas storage sites and has more than 30 years of experience in large-scale underground energy storage and brings this experience to the project. The hydrogen storage currently being outlined has a potential of 200 GWh of green energy. This compares to the overall battery capacity of 2 million electric vehicles and would be scalable to the capacity of the TWh-league.

Our ambition is to accelerate the green transition and thereby support the development of a climate-neutral energy supply. Denmark needs to develop new solutions to reach the ambitious 2030 goals. Long-term, large-scale storage of renewable electricity in a secure and cost-efficient manner is a vital, social strategic challenge during the next decade. We believe that underground hydrogen storage can be essential in meeting that challenge, which is why this technology is the core of what GSD brings to Green Hydrogen Hub Denmark. We are collaborating with some strong partners who share the same motivation, dreams and vision, in terms of speed, scale, and direction for the green transition in Denmark. Together, we have all the competences needed for making the complex value-chain work.”

Adam Elbæk, CEO of Gas Storage Denmark.

Green Hydrogen Hub Denmark can become the third largest hydrogen industry cluster in the central part of Jutland, Denmark.

Green Hydrogen Hub Denmark will become the third largest hydrogen industry cluster in the central part of Jutland, Denmark. The first cluster, Hydrogen Valley, is located in Hobro and has acquired great knowledge of green hydrogen since 2002. The same applies to GreenLab Skive, which has focused mainly on the extraction of hydrogen from renewable energy sources.

The GHH project is still in the investigation process, where the stakeholders are concentrating on creating both technological and commercial solutions. The new consortium has already sought support for the Primary Development Aspects of the European Innovation Fund 2020.

Nedim Husomanovic

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