French cable firm Nexans is to undertake a serious underground venture in Germany.

The German power transition plan, often known as the Energiewende, has set a goal for 80 per cent of the nation’s annual electrical energy must be met by renewable power by 2050. 

This requires Germany’s transmission service operators, similar to Amprion, to improve their excessive voltage energy transmission networks to move electrical energy generated by wind farms within the north over lengthy distances to the principle areas of consumption within the south. 

Nexans is taking part in a job on this venture by supplying cables that may allow Amprion to take its overhead strains underground at delicate sections of the route.

Amprion operates a transmission grid of about 11,000 kilometers to allow the transmission of electrical energy for greater than 29 million individuals throughout an space from Lower Saxony right down to the Alps. While the vast majority of its HV routes comprise overhead strains, at sure environmentally delicate sections Amprion is taking the route underground.

Nexans was concerned in Amprion’s pilot partial undergrounding venture at Raesfield, and is now supplying 31.eight km of 400 kV cable for a serious venture at Legden on the route between Wesel and Meppen. The 5.2 km Legden route is made up of two.1 km of tunnel and three.1 km of pipes. Nexans is supplying the cable for one double circuit with a 2500 mm2 copper cross-section. The part of cable put in within the tunnel will characteristic a halogen-free flame-retardant (HFFR) sheath and Nexans can also be offering the metal assist constructions.

The cable will probably be delivered by Nexans Benelux plant primarily based in Charleroi, Belgium whereas the metal assist constructions will probably be subcontracted to a specialised firm.

Delivery of the cables is scheduled for July 2022, with set up accomplished in 2023.
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This article first appeared in our sister title Electric Light & Power.

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