With this first carbon storage milestone in Denmark, Project Greensand demonstrates the feasibility of cross-border offshore CO2 storage across the full value chain - from capture to transport and storage. The next step is to develop, test and pilot carbon storage in the depleted oil reservoirs 1,800 meters below the sea floor of the North Sea.
It is estimated that the storage potential of the Danish underground is up to 22 billion tons, which corresponds to somewhere between 500 and 1000 years of Danish emissions. The sandstone reservoirs offshore lie under a series of shale layers that act as a lid, so here the CO2 will be trapped in the porous sandstone cavities.
The diverse companies involved with carbon capture and storage are part of a CCS value chain for geological storage of CO2 in Denmark. It is an important step in relation to developing the methods and technology for cost-effective and environmentally and safety-responsible CO2 storage in Denmark.
Project Greensand is supported by the Danish state through the Energy Technology Development and Demonstration Program – EUDP.