New, large-scale hydrogen hub to support Denmark’s green transition
Gas Storage Denmark in collaboration with Eurowind Energy and Corre Energy is exploring the possibilities of establishing GREEN HYDROGEN HUB combining giga-watt scale electrolyser plant with underground hydrogen-based storage solutions
The project has been on the drawing board since 2014 and is named Green Hydrogen Hub Denmark (GHH). The ambition is to establish a complete PtX 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 could 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 households. On top of that, the green hydrogen can also be applied as a sustainable fuel for the industry, heavy goods transport, shipping etc. GHH could 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 involved are excited about the possibilities it will bring.