TenneT and Energinet.dk – the operators of the Dutch and Danish high-voltage electricity grids – are installing a submarine high-voltage cable that will directly interconnect the electricity grids of the two countries. The COBRAcable will have a capacity of approx. 700 MW, will be around 325 kilometres long, and will run from Eemshaven (the Netherlands) to Endrup (Denmark) via the German sector of the North Sea. Two onshore converter stations – one in the Netherlands and one in Denmark – are needed to connect the cable to the existing grids.
The construction of the COBRAcable will produce benefits for both countries. More renewable energy can be imported, particularly wind energy generated in Denmark. Safeguarding the security of supply is very important to Denmark. The COBRAcable will make Dutch capacity structurally available to the Danish electricity grid, and vice versa. The connection will also be designed in such a way as to enable the connection of an offshore wind farm at a later stage. This will contribute to the realization of a sustainable international energy landscape, a key aim of the European Union.
Total length: 325 kilometres
Depending on the chosen route, the direct-current (DC) connection with a capacity of 700 MW ±320 kV will have the following features:
The COBRAcable is a cross-border project of European significance. The European Commission has therefore allocated a subsidy to the project under the EU Economic Recovery Plan, and has designated the COBRAcable as a Project of Common Interest (PCI). This preferential status is assigned to energy infrastructure projects that meet a number of specific criteria.