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New, large-scale hydrogen hub to support Denmark’s green transition

Renewable solar and wind energy can be converted to hydrogen and can thereby be stored and used at times when neither wind or solar power are available, or can be used as a sustainable fuel for industry, heavy goods transport, shipping etc. The project Green Hydrogen Hub Denmark aims to establish one of the World’s largest green hydrogen production plants and combine it with an underground hydrogen storage in the area between Hobro and Viborg.

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

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


On top of that, the green hydrogen can also be providedas a sustainable fuel for industry, heavy goods transport, shipping etc. GHH can contribute to the European green transition by potentially displacing 600,000 ton CO2 per year, which makes the project ground-breaking. The project is currently in the investigation phase and the partners involved are excited about the possibilities it will bring. 


Eurowind Energy will together with the other partners develop the hydrogen facility to create the optimal conditions for storing wind and solar energy.

Jens Rasmussen: We aim to make a difference for the local society and to set Mariagerfjord on the World map

“The timing for formalizing the value chain that we have been working on for so long is perfect”, says Jens Rasmussen, CEO of Eurowind Energy, and continues:

”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”.

Keith McGrane: The ability to store renewables over long periods can deliver significant value across the energy system

Dutch headquartered Corre Energy will be lead developer of the hydrogen fuelled CAES facility and coordinate development across the entire project, leading key commercial and funding activities. With over 30 years of collective renewables and storage development experience it is developing a pipeline of hydrogen-based storage projects with electrolysis in Europe. Keith McGrane, CEO, Corre Energy confirms:

“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 fund

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Visit Green Hydrogen Hub Denmark's webpage for more information.

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