Amprion GmbH, one of four transmission system operators in Germany, has selected a contractor for the civil engineering work on the onshore section of the DolWin4 and BorWin4 offshore power connections that will transport wind power from the North Sea.
Amprion said last week it has commissioned a consortium of Max Streicher GmbH & Co KG aA and De Romein GmbH to carry out the work on the 43-km (26.72 miles) northern onshore section. The two companies will build the cable protection pipe system into which the underground cable will later be laid with work slated to begin in 2024.
The two 900-MW projects will connect offshore wind parks in the North Sea to the German onshore power grid. The cables will reach the coast in the Hilgenriedersiel area and then run southwest to the Emden area largely parallel to the DolWin1, DolWin2 and DolWin6 lines that have been already laid by transmission system operator TenneT.
Earlier this month, Amprion launched the planning approval procedure for BorWin4 in which the exact route for the power lines will be determined. The decision on the procedure and the beginning of construction are expected in the middle of 2024.
The two offshore grid connections are scheduled to go online in 2028. The two projects include the installation of 60 km and 125 km of underwater cables as well as 155 km of underground cables from the North Sea coast to the substation in the town of Lingen, Lower Saxony.
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