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Germany-Norway 'Green Cable' Hits Milestone

Wednesday, June 26, 2019

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Last week, the NordLink project, a 623-kilometer (roughly 387-mile) transmission system that will serve as a connector for German wind and solar, along with Norwegian hydropower, hit a new milestone.

Operator TenneT announced that it had successfully put in place a section of cable, a portion that belongs to the nearly completed subsea section of the link, which runs 516 kilometers. The project, which runs through the North Sea, is costing 1.5 to 2 billion euros ($1.8-2.3 billion).

NordLink Project History

According to Reuters, the project, slated to begin commercial trials by the end of 2020, will move power from Norwegian hydroelectric dams to Germany, while also importing power. Work is being carried out in collaboration between Statnett, grid firm Tennet and KfW, a German investment bank.

The endeavor was previously criticized, however, as parties in Norway were concerned over the loss of cheap power in exporting electricity to the other country.


Last week, the NordLink project, a 623-kilometer (roughly 387-mile) transmission system that will serve as a connector for German wind and solar, along with Norwegian hydro, hit a new milestone.

Statnett spokesperson Christer Gilje noted back in mid-2018 that the cable could initially lower prices for Norwegian customers. Germany’s grid has yet to be upgraded enough to be able to move additional energy, however. Prices are also slated to increase after 2025. After this time, the cost would increase one euro per megawatt hour.

Upgrades for the Norwegian grid are slated for completion by 2022. Installation began in August 2017 with the placement of cables on the Vollesfjord seabed, in Vest-Agder.

Recent Milestone

As of last week, the cable was pulled onto the coast of Germany. Nexans is spearheading design and installation of the six 525kV mass impregnated HVDC interconnector cables for the Norwegian side. The interconnector will produce 1,400 MW.

According to TenneT, in the summer of 2017, two horizontal drilling sections, roughly 480 meters long, were drilled beneath a land protection dike in Neuenkoog, which was then followed by empty conduits being placed in the boreholes. Now, the subsea cable has been pulled into these conduits to link up with the landside cable.

“With today's successful pulling of the subsea cable beneath the land protection dike, we have practically completed the laying of the NordLink subsea cable,” said Tim Meyerjürgens, TenneT Managing Director.

“Now we are starting the successive laying of the 54-kilometre-long land cable section from Büsum Dike to the Wilster converter site.”


Tagged categories: EU; Europe; Infrastructure; Marine; Program/Project Management; Project Management

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