Wärtsilä, Höegh LNG and other partners have received funding of approximately EUR 5.9 million from the Norwegian Government. The funding is for the development of ammonia as a hydrogen carrier.

Among the other partners are the Institute for Energy Technology (IFE), the University of South-East Norway, Sustainable Energy and BASF SE. The funding is a part of Norway’s Green Platform programme of initiatives and amounts to approximate fifty per cent of the total budget for the joint project.

The project is designed to enhance the availability of large-scale storage and transportation capabilities of clean energy. Hydrogen is emerging as a viable future fuel for addressing the move away from fossil fuels. However, it is difficult to store and transport due to its low volumetric energy density and with potentially large vaporisation losses.

Ammonia is significantly better suited than hydrogen for this purpose, since it can be stored in liquid form at moderate pressures and temperatures. The objective of the project is to enable ammonia to be converted back to hydrogen at the receiving destination.

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Green ammonia

As a carbon-neutral renewable energy carrier, “green” ammonia is produced from hydrogen, via electrolysis of water, and nitrogen from the air. The significant emission reduction impact will reflect this green approach when the energy is consumed.
Green ammonia acts as a liquid battery with a high energy density compared to alternative solutions for the storage and transport of renewable power. The infrastructure for the large-scale transport of ammonia at sea already exists via a fleet of gas tankers having ammonia on the cargo list.

‘This important project is a natural extension of the investments and efforts made by Wärtsilä to accelerate the use of decarbonised energy,’ says Walter Reggente, Vice President of Wärtsilä Gas Solutions. ‘Hydrogen will play a considerable role in future renewable fuel consumption, and there is a clear need for the development of ammonia as a storage and transportation carrier for hydrogen. We are grateful to the Norwegian government for its support and funding, and we appreciate also the cooperation of Höegh LNG and our other partners in making this project possible.’

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From ammonia to hydrogen on a floating terminal

The project aims to develop a system to convert ammonia back to hydrogen, which will then be installed onboard a Höegh LNG vessel. This will provide a floating receiving terminal capable of being relocated as needed, requiring minimal use of coastal land and a solution resulting in lower overall cost, improved safety and competitive hydrogen prices.

Picture: Höegh LNG © Höegh vessels.

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