Latest news : Construction

Dogger Bank Wind Farm signs Cadeler contract for second turbine installation vessel

4th November 2026 in Construction, Press releases, Project news, Supply Chain

  • Cadeler’s newbuild vessel Wind Apex will join the Dogger Bank C turbine installation campaign in Q3 2027.
  • Wind Apex will work alongside Seaway Ventus installation vessel to complete remaining works on all three phases of Dogger Bank project.

Dogger Bank Wind Farm has today signed a contract with Cadeler to provide a second turbine installation vessel for Dogger Bank C, the third 1.2GW phase of the world’s largest offshore wind farm under construction.

Cadeler’s newbuild installation vessel, Wind Apex, is expected to join the Dogger Bank C turbine installation campaign in Q3 2027 and will be available to work alongside the Seaway Ventus installation vessel to support completion works on the remaining phases of the Dogger Bank project.

The 3.6GW Dogger Bank Wind Farm is being built in three 1.2GW phases, Dogger Bank A, B and C, off the north-east coast of England. Once complete, the wind farm will be capable of generating enough renewable electricity to power around six million UK homes annually.

Wind Apex is the third vessel in Cadeler’s A-class series and is designed to support both offshore wind foundation and turbine installation. Dogger Bank C will be the vessel’s first deployment following delivery from the shipyard.

Alan Borland, Turbine Director at Dogger Bank Wind Farm, said:

“Securing additional specialist vessel capacity for Dogger Bank C is another important step in the delivery of this world-leading offshore wind project.

“Wind Apex will join the campaign as an additional turbine installation vessel, working alongside the project’s existing installation vessel to safely and efficiently install Dogger Bank C’s 87 turbines and support the completion of the remaining phases of the project.

“Together with our partners and contractors, we remain focused on the safe delivery of all three phases of Dogger Bank and the homegrown renewable energy the wind farm will provide for the UK.”

Mikkel Gleerup, CEO of Cadeler, commented:

“Dogger Bank is one of the world’s most ambitious offshore wind developments, and we are proud to support its delivery. We value the long-standing relationships we have built with our customers and see these contracts as a reflection of the trust they place in Cadeler to execute large-scale offshore wind projects safely and efficiently. The campaign will also mark the first deployment of Wind Apex, and we look forward to seeing her begin operations on a project of this scale.”

The 3.6GW Dogger Bank Wind Farm is a joint venture between SSE (40%), Equinor (40%) and Vårgrønn (20%). Located approximately 130 kilometres off the north-east coast of England, SSE is leading development and construction on behalf of the three joint venture partners. Equinor will operate Dogger Bank Wind Farm on completion for its expected operational life of around 35 years.

Dogger Bank Wind Farm and Seaway7 mark completion of all foundations on world’s largest offshore wind farm

27th November 2025 in Construction

Dogger Bank Wind Farm and delivery partner Seaway7 have installed all 277 transition pieces on Dogger Bank Wind Farm, marking the completion of all foundation installation work on the 3-phase offshore wind project in the North Sea.  

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 milestone followed the previous installation of 95 transition pieces at the Dogger Bank A and 95 at the Dogger Bank B phases of the project.  

In total, Seaway7 has installed 554 foundation assets on the wind farm, following successful installation of 277 monopiles earlier in the construction programme, utilising Seaway7’s heavy lift vessel Seaway Strashnov  

Alan Evans, Senior Project Manager on Dogger Bank Wind Farm, said: 

“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.  

“We now have the solid foundations in place to support our 277 generating assets that will make a significant contribution to a cleaner, more secure and affordable renewable-led energy system.” 

Bruce Willox, Project and Operations Director, Seaway7, said:   

“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. 

“This project demonstrates what can be achieved through strong partnership, shared ambition, and the dedication of our skilled people working onshore and offshore. We are proud to have played a key role in the journey to delivering Dogger Bank Wind Farm and thank our client and partners for their trust and collaboration.” 

Dogger Bank Wind Farm signs contract with Seaway7 confirming second turbine installation vessel

11th April 2025 in Construction, Press releases, Project news, Supply Chain

  • Seaway Ventus will join the project in 2026, becoming second turbine installation vessel for ongoing delivery of Dogger Bank 
  • Contract signing follows earlier vessel reservation agreement announced in December 2024

Dogger Bank Wind Farm has signed a contract with Seaway7, part of the Subsea7 Group, to charter a second turbine installation vessel to support the ongoing delivery of the offshore wind farm off the coast of England.

This contract signing follows on from the earlier reservation agreement between Dogger Bank Wind Farm and Seaway7, announced in December 2024.

Under the contract, the Seaway Ventus jack-up installation vessel will commence turbine transport and installation work of GE Vernova Haliade-X offshore wind turbines at the Dogger Bank site in mid-2026.

This contract represents additional work for Seaway7 at the Dogger Bank development where the company already has the contracts for transport and installation of the monopile foundations and transition pieces on all three phases of the project, with the works on Dogger Bank A complete and the works on Dogger Bank B substantially complete.

Turbine installation and commissioning work is continuing at Dogger Bank A, with completion of the first phase of the offshore wind farm expected in the second half of calendar year 2025.

When fully complete, Dogger Bank will be the world’s largest offshore wind farm, capable of powering around 6 million UK homes annually.

Dogger Bank Wind Farm is a joint venture between SSE Renewables (40%), Equinor (40%) and Vårgrønn (20%). SSE Renewables is leading construction of the project on behalf of the three joint venture partners. Equinor will be lead operator of the wind farm on completion for its expected operational life of around 35 years.

Lecture and online exhibition to reveal Holderness history unearthed by construction of Dogger Bank Wind Farm  

18th November 2024 in Community News, Construction

  • Second Dogger Bank Wind Farm archaeology lecture to take place in Woodmansey, East Riding of Yorkshire.
  • New online exhibition to give public access to historical finds in their local area.
  • Artefacts uncovered include Anglo-Saxon, Roman, Iron Age and Bronze age remains.

Local residents are invited to attend a detailed lecture about the archaeological excavations and discoveries unearthed during the construction of Dogger Bank Wind Farm’s onshore cable route.  

Taking place on Monday 25 November at Woodmansey Village Hall from 6-8pm, this event offers the community a chance to learn about the history of Holderness and shares insight into how new infrastructure projects can lead to unexpected glimpses into ancient times and lives.  

Led by archaeologists Rebecca Jarosz-Blackburn and Matt Walker from AOC Archaeology Group, the lecture will delve into a range of finds unearthed along the 30km corridor that houses the underground cables transmitting renewable energy from the North Sea to the wind farm’s two onshore convertor stations off the A1079 near Beverley. The free event is open to all and will conclude with a Q&A session. 

The lecture will cover: 

  • An overview of archaeology in Holderness and what archaeological results can tell us about those who lived here
  • How archaeology is excavated and recorded and what archaeological works were undertaken during the construction of Dogger Bank Wind Farm
  • Significant discoveries, including an Iron Age Roman settlement uncovered near Leven and an early medieval surprise of an Anglo-Saxon long hall structure between Beeford and Skipsea

Dogger Bank Wind Farm has commissioned the production of replica artefacts found during the construction of the cable route. Created using a technique known as photogrammetry, the replicas are hand-painted and 3D printed to accurately recreate the look and feel of the very artefacts found during excavations. These artefact reproductions will be used by local schools for education purposes and include replicas of a 6,000-year-old Neolithic flint arrowhead, an Iron Age or Anglo-Saxon glass bead, an Iron Age to Roman bone comb and pottery fragments likely to date back more than 2,000 years.

For budding archaeologists these replica artefacts will be available to handle before the lecture from 5.30pm until 6pm in a special drop-in session for anyone aged over 6 years. The replicas will also be able to view and handle following the talk and presentation.  

Community Engagement Manager for Dogger Bank Wind Farm, Rachel Palmer, said:   

“Safeguarding historical evidence has been a critical part of our preparation work on Dogger Bank Wind Farm. We’re delighted we’re now able to share these exciting findings with the people who live in the towns and villages where this work was undertaken.  

“This second public event coincides with the launch of our online exhibition, giving the public first-hand access to this treasure trove of historical findings. It’s our great privilege to be able to finally share our findings and answer some of the previously unknown questions about life in Holderness long ago. ”  

AOC Archaeology Group is one of the most experienced heritage companies in Britain and was contracted by Dogger Bank Wind Farm as specialist archaeologists.  Their analysis has been supported by a wide team of artefact and period specialists.   

An online exhibition detailing historical finds from the construction of Dogger Bank Wind Farm can be accessed by visiting www.doggerbank.com/archaeology. The online exhibition features an interactive map to explore 22 excavated sites alongside a wealth of information about AOC’s work in the East Riding of Yorkshire.   

Project Manager for AOC Archaeology, Rebecca Jarosz- Blackburn, said:   

“Archaeology is all around us and it’s important that when we build for the future, we ensure our past is protected. I’m really looking forward to sharing what we found during Dogger Bank construction by both meeting the community at Woodmansey and showcasing our discoveries and finds online.

“I hope our online archaeological exhibition and the option to zoom in and see exactly where discoveries were made brings East Riding’s rich history to life. There are more artefacts that we are still analysing and as our understanding becomes clearer, adding to our online exhibition means we will be able to share these with a wider audience.” 

Woodmansey Village Hall was chosen for this event due to its proximity to the wind farm’s convertor stations near Beverley. The event is supported by Woodmansey Parish Council and Woodmansey Village Hall. 

AOC Project Manager Matt Walker, who grew up in East Yorkshire, also has a local connection to the Dogger Bank project. He said:   

“At Dogger Bank, one of our main research aims was to try and narrow the current date ranges for handmade prehistoric and Roman pottery in the region by using radiocarbon dating.   

“It is the scale of this project across the region, coupled with funding for radiocarbon dates, that gives us a really meaningful opportunity to add to this research theme and advance our understanding of Holderness thousands of years ago.”   

“What we discovered during the archaeological investigations for Dogger Bank offers a deep insight into communities who lived in Holderness many centuries ago and, as a person proud to call this area my home, this feels very special to me.” 

AOC and Dogger Bank Wind Farm are currently considering options for permanently locating the original artefacts once they’ve been fully analysed, with a preference to find a home close to where they were unearthed.   

Set to be the world’s largest offshore wind farm once complete, Dogger Bank is situated over 130km from the Yorkshire coast and will produce enough renewable energy to supply electricity to six million homes in the UK annually. The wind farm, a joint venture between SSE Renewables, Equinor, and Vårgrønn, produced first power in October 2023.   

The first two phases of the wind farm will transmit renewable energy into the national electricity network via the Creyke Beck substation near Beverley, close to the site where the project has built two onshore convertor stations over the last four years.   

Inter-array cable works completed on Dogger Bank A

23rd July 2024 in Construction, Press releases, Project news, Supply Chain

  • Over 200 miles/328km of 66KV cables manufactured by Hellenic Cables under a contract with DEME Offshore. 

More than 200 miles (328 km) of 66KV inter-array cables have been successfully installed by delivery partners working on the construction of the world’s largest offshore wind farm.

The cables were laid by DEME Offshore’s Viking Neptun, with burial works being completed by DEME Offshore’s Living Stone.

This work marks the completion of all inter-array cables on the first phase of the wind farm, Dogger Bank A, which began generating power in October 2023.

The network of 95 cables in a multitude of lengths up to 8.6 miles, will connect Dogger Bank A’s 95 Haliade-X 13MW turbines to the Dogger Bank A offshore convertor station. From here the electricity is converted into direct current for transmission to Dogger Bank A’s onshore convertor station via a pioneering HVDC system.

The laying of cables is carried out using a specialist cable lay vessel that uses a carousel and tensioner device, to deploy cable over the stern chute of the vessel and onto the surface of the seabed. The second stage involves connecting the cable to the offshore platform as well as each individual wind turbine.

This challenging engineering process follows on from an intensive preparation period involving underwater surveys, to ensure the cable laying corridor is clear of obstacles.

The 66KV inter-array cables were manufactured by Hellenic Cables under a contract with Dogger Bank tier one contractor DEME Offshore.

Hellenic Cables and Deme Offshore are also responsible for the manufacture and installation of inter-array cables for Dogger Bank B and C. The first inter-array cable for Dogger Bank B is expected to be installed from autumn 2024.

Alan Evans, Dogger Bank Wind Farm Marine Package Manager, said:

“This is another important part of our Dogger Bank A marine work complete, and is the result of a great collaboration between all parties involved.

“With 277 cables to be installed in total, it’s by far the biggest inter-array cable installation programme undertaken to date in offshore wind.

“The safe and smooth completion of this phase is a huge credit to the entire team.”

Geert Linthout, Project Director – DEME offshore, said:

“The teams at Dogger Bank and DEME Offshore have collaborated closely to achieve this significant project milestone.

“Throughout the execution, DEME Offshore has successfully deployed both the Living Stone and the newly added cable installation vessel Viking Neptun, demonstrating outstanding performance.

“This has provided a solid and reliable basis for the upcoming Dogger Bank B phase and, subsequently, the Dogger Bank C phase. We are excited to continue our strong working relationship on Dogger Bank B and Dogger Bank C.”