GREEN HYDROGEN VALUE CHAIN
The figure illustrates the green hydrogen value chain from a Danish perspective where the energy source is derived from renewable sources like wind and solar. Hydrogen functions as an energy carrier, crucial for balancing the energy system, and is transported through pipelines and stored in underground salt caverns. Additionally, hydrogen serves as a building block for hydrogen-based products, where hydrogen can be combined with either nitrogen for e-ammonia or carbon dioxide (CO₂) for e-methanol and e-kerosene. The Danish approach sees sectoral integration as key for the success of the full deployment of green hydrogen. This includes utilising excess heat from electrolysis in the district heating system and purifying wastewater for electrolysis.
Power-to-X Sector integration
*While direct electrification will be the dominant solution for zero-emission road transport in Denmark, Danish companies are today producing green hydrogen for use in e.g. taxis domestically. EU legislation means green hydrogen will be an important part of decarbonising all sectors of European transport.