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TenneT installs Holalndse Kust (noord) substation jacket

By: James Bernthal-Hooker 12/11/2021 TenneT

General Substations Windfarms

TenneT has installed the jacket foundation for its offshore substation at the Hollandse Kust (noord) offshore wind farm, off the north Dutch coast.

The project now faces its next steps: next May, the topside with transformers will be installed on the jacket. The substation is expected to complete construction in 2023, ready to bring offshore wind energy to the high-voltage grid onshore.

The 2,100-tonne jacket departed the Port of Vlissingen earlier this month, arriving at its destination, over 18 km from the coast of Egmond, in 20 hours. After positioning, it was secured with piles, driven about 38 metres into the seabed and welded to the feet of the base. The space between the piles and the pipes was filled with cement.

Early next year, before the topside is installed, the project’s export cables will be installed, coming ashore on the beach of Heemskerk / Wijk aan Zee. These cables will be linked behind dunes to the land cables for the new transformer station at Wijk aan Zee. From there, electricity will be transported to a high-voltage substation along the A9 motorway near Beverwijk, ending up in the national grid.

The Hollandse Kust (noord) wind farm is expected to be operational by 2023 with an installed capacity of 759 MW, generating at least 3.3 TWh per year. The wind farm will be located 18.5 km off the Dutch coast, near the town of Egmond aan Zee. Is it being developed subsidy free by the CrossWind consortium, a joint venture between Shell and Eneco.

For more information on offshore wind farms worldwide, click here.

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TenneT installs Holalndse Kust (noord) substation jacket

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