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November 1, 2021

TenneT shares plans to expand German offshore energy grid

The system would deliver clean energy to three areas of Germany, namely Schleswig-Holstein, Lower Saxony and Bremen.

By Umesh Ellichipuram

Dutch transmission system operator TenneT has unveiled a wind power ‘booster’ concept to help Germany reach its offshore grid expansion targets more quickly.

The company intends to combine three network systems, each with 2GW of capacity, to establish a 6GW LanWin hub to expand the offshore grid for wind energy in the North Sea.

The concept could transfer clean energy from offshore wind farms into the power grid by 2032, three years sooner than was forecast in the existing grid development plan.

It would create a meshed high-voltage direct current (HVDC) grid both in water and on land.

The combined grid connection system will deliver clean energy to electrolysis projects, industries and consumers in three areas of Germany, namely Schleswig-Holstein, Lower Saxony and Bremen.

In addition to ensuring a reliable energy supply, TenneT said the meshed HVDC grid would reduce the costs of clean energy incorporation to help reach climate targets in Germany and Europe.

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TenneT chief operations officer Tim Meyerjürgens said: “Building on our extensive experience in the construction and operation of offshore grid connections, our conceptual and technological innovation for a 6GW hub demonstrates a way to significantly accelerate the achievement of ambitious climate protection targets.

“We see this as an offer also for the German Government coalition negotiations currently underway, which, as we know, are seeking a boost for the expansion of renewable energies in Germany.

“At the same time, we are laying the foundation for a sustainable interconnection of the direct current grid.”

TenneT is currently engaged in developing almost 17GW of transmission capacity in the North Sea and Baltic Sea, with the aim of installing this by 2030.

Last September, the company agreed to assess the possibilities for integrating British and Dutch offshore wind farms in cooperation with the UK’s National Grid.

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