Sif Rolls Out First Dogger Bank Hardware

The Netherlands-based foundation manufacturer Sif Group has completed the first several monopiles for the world’s largest offshore wind farm under construction – the 3.6 GW Dogger Bank in the UK.

Sif manufactured the monopiles at its factory on Maasvlakte 2 in the Port of Rotterdam.

The monopiles produced will be installed on the 1.2 GW Dogger Bank A, phase one of the three-phased project.

95 units in total will be manufactured at Maasvlakte and delivered by Sif for Dogger Bank A. The monopiles have a diameter of 8.6 metres and will have an overall weight of 103,087 tons, Sif said.

Sif is also in charge of manufacturing and delivering monopiles for Dogger B and Dogger Bank C.

In total, the company will manufacture and deliver 277 monopiles for the project.

Besides the monopiles, Sif is responsible for the fabrication and supply of the primary steel for the transition pieces, and for the marshalling of all foundation components at its Maasvlakte 2 Rotterdam terminal.

Smulders, Sif’s partner on the project, will manufacture the secondary steel and assemble, coat, and test the fully equipped transition pieces.

The foundations will be installed by OHT’s newbuild Alfa Lift from 2022 to 2024.

They will support the GE Haliade-X 13 MW and GE Haliade-X 14 MW turbines scheduled to deliver the first electricity in 2023. The wind farm is slated for full commissioning in 2026.

Dogger Bank Wind Farm is a joint venture project between SSE Renewables and Equinor.

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