December 2, 2022
  • December 2, 2022

Dogger Bank Topside’s first offshore substation arrives in Norway

By on June 30, 2022 0

The upper part of the offshore substation built for Dogger Bank A has arrived at the Aibel yard in Haugesund, Norway.

Source: Øyvind Sætre/Aibel

The top section, which is the first of three rigs Aibel will deliver to the world’s largest offshore wind farm, the 3.6GW Dogger Bank, was transported from Aibel’s yard in Thailand by the vessel of heavy transport from BigLift Shipping. BigLift Baffin.

In Thailand, the topside has set several records, including being the largest installation ever moved on Thai soil, according to Aibel.

“It has really been a difficult time with the Covid pandemic, material delivery delays and finally the war in Ukraine, but the team has managed extremely well and built a supreme quality topside. Now we have to finish the job here in Haugesund and deliver all the parameters to our customers,” said By Tore Larsenproject manager for the Dogger Bank project in Aibel.

During the stay in Haugesund, the platform will be equipped with transformers, slings and lifting equipment through several large lifting operations with large and small floating cranes.

Hitachi equipment will be installed on the 40-meter-tall structure along with the yard’s new tower crane, Aibel said.

Source: Øyvind Sætre/Aibel

Aibel and Hitachi ABB Power Grids are supplying all offshore grid connections for Dogger Bank Wind Farm, under a contract for Dogger Bank A and B phases signed in November 2020, and for Dogger Bank C in early 2021.

Aibel expects to complete most of its work by mechanical completion by the end of 2022, with commissioning work then to be completed up to the planned shipping lane to the Dogger Bank project, located over 130 kilometers away off the northeast coast of England in early spring 2023. .

Saipem will be responsible for the transport and installation of the Dogger Bank A and B substations, while Seajacks will take charge of the connection and commissioning works on the three phases of the project.

The platform will receive electricity from 95 Haliade-X 13 MW wind turbines and convert it to 320 kilovolts of direct current, which will then be sent ashore.

Dogger Bank will be the first offshore wind project in the UK to use high voltage direct current (HVDC) unmanned technology, which reduces surface weight by 70%, according to the developers.

When completed, which is expected by March 2026, the offshore wind farm will be able to generate enough renewable electricity to meet 5% of UK demand, equivalent to powering six million homes .

The huge offshore wind project is being carried out by joint venture partners SSE Renewables, Equinor and Eni. SSE Renewables is leading construction and delivery while Equinor will operate the wind farm when completed.

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