Amprion and Energinet advance offshore interconnector between Germany and Denmark

Copyright: Picture/Foto: Kati Jurischka.

At the North Sea Summit in Hamburg, the Federal Ministry for Economic Affairs and Energy (BMWE) and the Danish Ministry of Climate, Energy and Utilities (KEFM) signed an agreement for a strategic energy partnership. This also includes a potential offshore interconnector to be implemented by Amprion and Energinet.

The agreement signed between Germany and Denmark builds on existing European initiatives with transmission system operators and energy companies. It is another important step toward developing the North Sea into Europe’s “green power plant.” The European partners aim to use electricity generated from offshore wind farms more efficiently and to plan offshore wind energy in a coordinated and cost-effective manner.

Amprion and the Danish grid operator Energinet are supporting the ministries through their cooperation on planning a potential hybrid interconnector in the North Sea. The “TYSDAN Hybrid Interconnector” project makes a decisive contribution to achieving Europe’s energy and climate goals. The partners are exploring the use of innovative technology offshore: for the first time worldwide, a direct current (DC) circuit breaker could be installed on an offshore platform for the interconnection of wind farms. This technology sets new industry standards and paves the way for further integration of the European power grid in the North Sea region.

Dr. Christoph Müller, CEO of Amprion: “Our planned interconnector between Germany and Denmark strengthens the resilience of the European power grid and unlocks efficiency potential. Today’s signed Joint Declaration of Intent is a milestone and tailwind to swiftly continue planning together with our Danish partners. At the same time, such European cooperation shows how important the long-term investment capacity of transmission system operators is.”

Thomas Egebo, President and CEO of Energinet:

“Our ministers have affirmed their intention to increase the cooperation in connecting the German grid and Danish offshore wind energy in the North Sea. We are pleased that they directly support that Amprion and Energinet further examine the potential for the offshore interconnector between our countries.”

Innovation at sea for an efficient and resilient grid in Europe

The project examined by Amprion and Energinet will connect two Danish offshore wind farms in the North Sea, each with two gigawatts of capacity, to the power grids in Germany (Lippe) and Denmark (Revsing). This connection enables electricity from the Danish wind farms to be transported more efficiently to western Germany’s load centers. Cross-border networking makes it possible to respond better to fluctuations in generation and consumption—reducing grid congestion and increasing security of supply in Germany and Denmark. For consumers in Germany, this will lead to lower electricity prices in the long term.

At the end of 2025, a study to assess feasibility was successfully completed. With the signed declaration, the next development phase begins jointly with the BMWE and KEFM. Amprion and Energinet will be preparing for the regulatory approval procedures.