Seaway7 has completed the installation of all 277 transition pieces (TPs) at the Dogger Bank Wind Farm, a 3.6 GW offshore wind project in the UK North Sea, marking the end of the foundation installation phase.
The heavy-lift vessel Seaway Alfa Lift began transporting and installing TPs on Dogger Bank C, the project’s third phase, on 19 May, after Seaway Strashnov set the first monopile in April.
The final monopile was completed in September, and Seaway Alfa Lift installed the last of the 87 TPs on the Dogger Bank C monopile foundations in late November.
In total, Seaway7 has positioned 554 foundation structures across Dogger Bank A, B, and C, each phase incorporating 95 monopiles and 95 TPs.
“Today we’re celebrating the safe and successful installation of more than 500 foundation assets across the three phases of Dogger Bank Wind Farm over the last three years. During this time, we’ve enjoyed a strong partnership with Seaway7 and its sub-suppliers who together have navigated a hugely demanding and complex engineering challenge,” said Alan Evans, Senior Project Manager.
“We now have the solid foundations in place to support our 277 generating assets that will significantly contribute to a cleaner, more secure, and affordable renewable-led energy system.”
The 3.6 GW offshore wind farm, currently the largest under construction, will include 277 GE Haliade-X wind turbines. Dogger Bank A and B will each have 95 Haliade-X 13 MW turbines, while Dogger Bank C will feature 87 Haliade-X 14 MW turbines.
“Installing the foundations for the world’s largest offshore wind farm is an enormous achievement. Over the three years, hundreds of components and over a thousand lifts have been completed – representing a phenomenal scale in offshore construction. Installing the full scope across all three project phases enabled us to optimise safety, performance, and efficiency,” said Bruce Willox, Project and Operations Director, Seaway7.
Dogger Bank Wind Farm is expected to be fully operational next year.
The project is owned by SSE Renewables (40%), Equinor (40%), and Vårgrønn (20%).
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