Dogger Bank Wind Farm and delivery partner Seaway7 have completed the installation of all 277 transition pieces on Dogger Bank Wind Farm, marking the completion of all foundation installation work on the three-phase offshore wind project in the North Sea.

Final Installation Milestone

Seaway7's heavy-lift vessel, Seaway Alfa-Lift, installed the 87th and final transition piece onto its corresponding monopile foundation at Dogger Bank C, the third phase of Dogger Bank Wind Farm, in late November. This achievement represents the culmination of foundation work across all three phases of the project.

The completion follows the previous installation of 95 transition pieces at the Dogger Bank A phase and 95 transition pieces at the Dogger Bank B phase of the project. Each transition piece was installed onto the corresponding monopile foundations that had been previously positioned at the offshore site.

Total Foundation Assets Installed

In total, Seaway7 has installed 554 foundation assets on the wind farm throughout the construction programme. This comprehensive scope included the successful installation of 277 monopiles earlier in the construction programme, accomplished using Seaway7's heavy-lift vessel Seaway Strashnov, as well as the 277 transition pieces, which have now been completed.

Foundation installation work has been carried out over the last three years across all three phases of the Dogger Bank Wind Farm project. The operation involved hundreds of components and over a thousand lifts during construction.

Project Leadership Statements

Alan Evans, Senior Project Manager on the Dogger Bank Wind Farm, emphasized the significance of the achievement and the partnership approach that enabled it. Evans stated that the project team is 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.

Evans highlighted the strong partnership with Seaway7 and its sub-suppliers, noting that, together, they have navigated a highly demanding and complex engineering challenge. He emphasized that the completed foundations will now support 277 generating assets, which will make a significant contribution to a cleaner, more secure, and more affordable renewable-led energy system.

Bruce Willox, Project and Operations Director at Seaway7, described the installation of foundations for the world's largest offshore wind farm as an enormous achievement. Willox noted that over the three years of work, hundreds of components and over a thousand lifts have been completed, representing a phenomenal scale in offshore construction.

Operational Strategy and Partnership

According to Willox, installing the full scope across all three project phases enabled the team to optimize safety, performance, and efficiency. The comprehensive approach allowed for streamlined operations across the entire Dogger Bank Wind Farm development.

Willox credited the project's success to strong partnership, shared ambition, and the dedication of skilled personnel working both onshore and offshore. He expressed pride in Seaway7's role in delivering the Dogger Bank Wind Farm and thanked the client and partners for their trust and collaboration throughout the construction process.

The foundation installation represents a critical phase in the development of Dogger Bank Wind Farm, establishing the structural base necessary for the installation of the wind turbine generating equipment. With all 277 foundations now in place, the project moves forward toward the next phases of construction that will ultimately bring the offshore wind farm into operation.

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