Cadeler Installs First Complete Monopile Foundation at 2.9 GW Offshore Wind Farm in the UK

Cadeler completes installation of the first fully commissioned monopile foundation at Ørsted’s Hornsea 3 offshore wind farm in the UK, marking a major milestone in the execution of one of the world’s largest offshore wind developments.

Once completed, Hornsea 3 will become the single largest offshore wind farm in the world, with a total capacity of 2.9 GW – capable of powering more than 3.3 million UK homes with renewable energy.

The Hornsea 3 project marks the first time Cadeler takes on the complete T&I scope for offshore monopile foundations. The successful installation of the first complete monopile foundation follows years of planning, engineering, and coordination across teams onshore and offshore. It reflects the coordinated execution of multiple specialised offshore scopes across vessels and project partners. The monopile itself was installed by Cadeler’s purpose-built A-class vessel, Wind Ally, while Wind Orca executed the installation of secondary steel. The full commissioning scope was carried out by the service operation vessel ESVAGT FROUDE, operated by the Danish company ESVAGT. Boston Energy has delivered the post-installation commissioning and completion scope for the foundation.

As part of the broader Hornsea 3 installation scope, Cadeler will deploy three of its own specialist offshore wind installation vessels, including its first A-class newbuilding, Wind Ally, purpose-built to support the transportation and installation of XXL monopile foundations.