Cable systems for unique renewable energy integration

Connecting offshore wind farms to onshore grids is essential to enable integration of more renewable energy and pave the way for a sustainable future. In turn, interconnecting grids create opportunities to strengthen energy markets, secure supply and share capacity.  

As the selected supplier of cable systems and installation work, NKT contributes to the unique Kriegers Flak development in the Baltic Sea. Two national electricity grids are being connected via offshore wind farms.  

The European power transmission system is evolving towards an infrastructure based on high-voltage cable systems. The Kriegers Flak connection and interconnection showcase this transformation and support the European Union’s goal of reaching a minimum of 27 percent renewable energy by 2030.

Kriegers Flak grid connection - Denmark’s largest offshore wind farm, Kriegers Flak, is connected to shore by NKT. The solution consists of 220 kV (kilovolt) HVAC (high-voltage alternating current) cable systems between the offshore transformer platforms as well as connections to shore. The advanced solution enables the integration of 600 MW (megawatt) into the mainland grid and brings green energy to 600,000 Danish households.

Kriegers Flak Combined Grid Solution - NKT is securing green power transmission between Germany and Denmark. Transmission system operators 50Hertz of Germany and Energinet of Denmark have established the world’s first offshore interconnection by using the national grid connections to the offshore wind farms Kriegers Flak and Baltic 2. The Kriegers Flak Combined Grid Solution uses a submarine cable system from NKT. It has been designed and manufactured at our optimized factory in Cologne, Germany.

Kriegers Flak grid connection: Turnkey project including design, production and installation of the 3-core cable system

Kriegers Flak Combined Grid Solution: Turnkey project including design, production and installation of the 3-core cable system

Kriegers Flak grid connection: 100 km

Kriegers Flak Combined Grid Solution: 2 x 25 km

Kriegers Flak grid connection: A 220 kV HVAC cable system with a 600 MW power rating.

Kriegers Flak Combined Grid Solution: A 170 kV high-voltage cable system with a 400 MW power rating

2017-2019

Kriegers Flak grid connection: Energinet

Kriegers Flak Combined Grid Solution: 50Hertz and Energinet

Kriegers Flak grid connection: The Baltic Sea, Denmark

Kriegers Flak Combined Grid Solution: The Baltic Sea, Germany and Denmark

 

 

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