26th August 2025 in Press releases, Project news
- Joint venture developers SSE and Equinor finalise seabed lease with The Crown Estate to progress Dogger Bank D offshore wind project, following establishment of terms last year.
- This allows capacity of Dogger Bank C lease area to be maximised, unlocking up to 1.5GW of additional renewable electricity capacity from the 3.6GW Dogger Bank Wind Farm.
- Dogger Bank D is a proposed fourth phase of the world’s largest offshore wind farm in construction – and can make the world’s biggest offshore wind farm even bigger.
- SSE and Equinor each own 50% of the proposed Dogger Bank D development.
SSE and Equinor have finalised a seabed lease with The Crown Estate to progress the Dogger Bank D offshore wind project.
This marks the latest important milestone in the development of a proposed fourth phase of the world’s largest offshore wind farm, the 3.6GW Dogger Bank Wind Farm currently in construction off the coast of England in the North Sea.
The lease allows Dogger Bank D’s 50:50 joint venture shareholders SSE Renewables and Equinor to maximise the potential renewable electricity generation capacity from the eastern portion of the existing Dogger Bank C seabed lease area, located around 210km off the Yorkshire coast.
Delivery of Dogger Bank D is subject to it securing a Development Consent Order as well as a final investment decision by partners SSE Renewables and Equinor.
A fourth phase has the future potential to unlock an additional 1.5GW in renewable electricity capacity at Dogger Bank for Britain’s energy system and would make the world’s biggest offshore wind farm even bigger.
Developers SSE Renewables and Equinor previously established terms for Dogger Bank D with The Crown Estate in July 2024. Implementation of these commercial terms was subject to the conclusion earlier this year of the plan-Level Habitats Regulation Assessment (HRA) associated with The Crown Estate’s wider Capacity Increase Programme. Dogger Bank D will work collaboratively with The Crown Estate and other stakeholders to deliver the environmental compensation and mitigation required by the lease.
The Dogger Bank D project recently concluded its eight-week statutory consultation during which project proposals were presented to the public. These include plans for up to 113 installed offshore wind turbines on fixed bottom foundations as well as up to two offshore substation platforms at the 262km2 seabed site. Also proposed is associated export and inter-array subsea cabling connecting with onshore infrastructure in East Riding of Yorkshire for transmission of the electricity generated by the wind farm to Britain’s national grid.
Steve Wilson, Director of Offshore Development and Construction, SSE Renewables said:
“We’re delighted to have finalised an amendment to the existing Dogger Bank C seabed lease agreement with The Crown Estate to unlock additional clean energy potential from the site’s existing seabed lease. In amending the lease in this innovative way, we’ve taken significant strides to progress Dogger Bank D as a proposed fourth phase of the world’s largest offshore wind farm in construction, Dogger Bank Wind Farm.
“Concluding this process is testament to the shared innovation of shareholders SSE and Equinor along with The Crown Estate to enable a framework that allows us to increase the generation capacity potential of the site. We look forward to continuing Dogger Bank D’s progression as a nationally significant offshore wind project for the UK and building on our vision to the make the world’s biggest offshore wind farm even bigger.”
Melissa Read, Head of Regional Development – UK Renewables, Equinor, said:
“Reaching this milestone for the Dogger Bank D development provides future opportunity to unlock more value and volume from the world’s largest offshore wind farm whilst building on our expertise and presence in the North East of England.
“The UK is a core strategic market for Equinor and Dogger Bank D demonstrates how there is the potential to further develop our future UK portfolio by having the opportunity to increase future value from quality existing assets. We look forward to maturing the project further with SSE and continue to support the UK’s offshore wind and net zero ambitions.”
Gus Jaspert CMG, Managing Director, Marine at The Crown Estate, said:
“As one of the world’s largest offshore windfarms in construction, Dogger Bank showcases the UK’s global position in deploying this vital technology to deliver clean and secure energy for millions of people. This new approach to increase capacity on the existing windfarm site that The Crown Estate has agreed with Equinor and SSE, through Dogger Bank D, will enable more communities to benefit from the energy it creates and the jobs it supports.
“As with all developments, we carefully consider the important responsibility to balance the needs of energy and nature and have embedded environmental compensation measures agreed by the Secretary of State for Energy Security & Net Zero into our leasing for this windfarm. As development of our leading Marine Delivery Routemap continues, this collaborative approach will support future prioritisation decisions and avoid nature impacts as much as possible.”
Dogger Bank D is one of seven UK offshore wind farm projects with existing seabed leasing agreements that have been identified for potential generating capacity increases as part of The Crown Estate’s Capacity Increase Programme to unlock up to 4.7GW of potential new green electricity production.
A Statutory Consultation with community members in East Riding of Yorkshire and with stakeholders recently concluded on the offshore and onshore proposals for Dogger Bank D as well as on the outcomes of preliminary environmental assessments. Feedback from this consultation process will help inform the development of a final application for a Development Consent Order which is expected to be submitted by SSE Renewables and Equinor to The Planning Inspectorate in due course.
ENDS
About Dogger Bank D
Dogger Bank D is being developed as a proposed up to 1.5GW fourth phase of Dogger Bank Wind Farm by a 50 / 50 joint venture between SSE and Equinor, two of the world’s leading companies in the development and operation of offshore wind energy. Both companies were involved in the design and planning consent of the 3.6GW Dogger Bank Wind Farm, which is currently under construction in the North Sea.
Dogger Bank was awarded rights in The Crown Estate’s Offshore Wind Leasing Round 3 and is currently under construction in three 1.2GW phases: A, B and C. Dogger Bank Wind Farm is a joint venture between SSE Renewables (40%), Equinor (40%) and Vårgrønn (20%).
17th July 2025 in Community News, Press releases, Project news
- Education pack contains handmade replicas of historical artefacts unearthed during archaeological excavations during construction of Dogger Bank Wind Farm.
- The local education pack includes replicas of a 6,000-year-old flint arrowhead, an Iron Age or Anglo-Saxon glass bead, an Iron Age to Roman bone comb and pottery that is thought to date back more than 2,000 years.
Schoolchildren across East Riding will be able to get their hands on replicas of key historical artefacts that were uncovered during the construction of Dogger Bank Wind Farm, following the launch of a new education pack.
The education pack contains handmade replicas of some of the key findings from 22 excavations, undertaken on the wind farm’s 30km cable route from Ulrome to its onshore convertor stations near Beverley. It includes 3D printed and hand-painted recreations of a 6,000-year-old flint arrowhead that was unearthed near the village of Beeford, an Iron Age or Anglo-Saxon glass bead excavated in Ulrome and an Iron Age to Roman bone comb discovered in Leven.
The Dogger Bank-funded education pack will be managed by the East Riding School Library Service.
Councillor Victoria Aitken, East Riding Council’s cabinet member for children, families and education said:
“The collaboration between education and business is leading a cultural change so children can be trailblazers in their careers.
“This new history pack was officially launched at Molescroft Primary School, where pupils had the opportunity to hear about the construction of the wind farm, and handle the replicas as part of their ongoing work on Anglo Saxons. I look forward to it being rolled out across more schools in the East Riding, and more pupils benefitting from this unique and fascinating education.”
Rachel Lawrence, Stakeholder Engagement Manager for Dogger Bank Wind Farm, said:
“Unearthing the rich history of Holderness has been an unexpected and exciting part of our construction journey.
“Our experts from AOC Archaeology carried out 22 separate excavations along our cable corridor and invested 26,000 hours preserving fragments of local history.
“It’s our privilege to be able to share this information with schoolchildren, as we bring their local history to life in the classroom through our education pack.”
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 Archaeology’s wider work in the East Riding of Yorkshire.
23rd June 2025 in Press releases, Project news
- Statutory consultation phase launched on 10 June to give communities and other stakeholders a chance to have their say on project proposal for Dogger Bank D.
- In-person events to take place at key locations in East Riding of Yorkshire between 24 and 28 June.
Members of the public are being invited to have their say on plans for a new offshore wind farm project at six in-person events this week.
Dogger Bank D is a proposed project in the North Sea which would be located around 210km off the coast of England. Joint venture developers SSE Renewables and Equinor are inviting community members and stakeholders to have their say on proposals for the project, as part of a Statutory Consultation between 10 June and 5 August.
Six in-person events will be held at the following times and locations:
Skipsea Village Hall, 3pm – 6.30pm.
Leven Sports Hall, 2pm – 7pm.
Cottingham Civic Hall, 10am – 2pm, and Walkington Village Hall 3pm – 6pm.
Toll Gavel Church Hall, Beverley, 10am – 2pm.
Beverley Memorial Hall, 10am – 2pm.
Sophie Large, Senior Project Manager for Dogger Bank D, said:
“We would encourage anyone who’s interested in our proposals to come along to one of our events to speak with a member of our friendly team. At the events you can expect to talk to a team that includes all of the specialisms involved in Dogger Bank D development which ensures that in-depth conversations can take place.
“At this stage of consultation, the proposals presented are not our final application. They reflect input from earlier consultation rounds as well as our preliminary environmental and technical assessments. We encourage the community to come forward to review and share their feedback as local knowledge is invaluable in helping us refine our plans further.
“We’re also excited to share more information on our ideas for building a positive legacy for the project. We’re committed to ensuring that local communities are heard and respected as we develop our proposals to build the energy generation assets that are critical to securing energy security and affordability in a net zero world.”
This latest round of consultation by the developers of Dogger Bank D will outline offshore and onshore proposals, as well as outcomes of preliminary environmental assessments.
The proposals include plans for offshore infrastructure for renewable electricity generation as well as offshore and onshore infrastructure for transmission of the electricity generated by the wind farm.
Out at sea, the project proposes an offshore wind farm array covering a site of 262km2 with up to 113 installed offshore wind turbines. Each turbine would be installed on a fixed bottom foundation.
The offshore application also proposes up to two offshore platforms, as well as associated export and inter-array subsea cabling that would export power from the offshore wind farm to Britain’s national grid at a landfall point near Skipsea, in East Riding of Yorkshire.
From the Skipsea landfall, underground cables would transmit renewable power along a 55-kilometre route to an onshore converter station near to a new onshore substation being developed by National Grid Electricity Transmission near Cottingham, north of Hull, called Birkhill Wood.
The project is also proposing potential plans to co-locate Energy Storage and Balancing Infrastructure at the site of the proposed onshore converter station.
The proposals follow extensive environmental studies and feedback received from earlier stages of engagement.
Feedback from the consultation, which comprises six local in-person events and two online sessions, will be gathered over an eight-week period ahead of the consultation closing on Tuesday 5 August.
Developers SSE Renewables and Equinor will use this feedback to help inform a final application for a Development Consent Order for up to 1.5GW of installed offshore wind capacity at Dogger Bank D.
The delivery of the Dogger Bank D project is subject to it securing a Development Consent Order as well as a final investment decision by partners SSE Renewables and Equinor.
The project team encourages all feedback during the eight-week consultation phase. Feedback will be accepted until 11.59pm on Tuesday 5 August.
All consultation materials including the consultation brochure, maps and feedback forms are now available to view and download at www.doggerbankd.com. Hard copies and alternative versions of consultation documents can also be requested directly from the project team by email or freephone. Alternatively, consultation materials can be viewed or collected from community access points, please check opening hours before visiting. For more information on Dogger Bank D, or how to engage with the consultation, please visit www.doggerbankd.com, call the freephone number on 0800 254 5029, or email contact@doggerbankd.com.
17th June 2025 in Project news
A report examining the rollout of High-voltage direct current (HVDC) transmission technology on the world’s largest offshore wind farm in construction has been published by researchers from STEMB university Imperial College London today.
Imperial Business Partners member SSE, and Imperial Partner Hitachi Energy, gave the researchers exclusive access to experts working on the Dogger Bank Wind Farm to author an independent review examining the planning and installation of the wind farm’s three-phase transmission system.
The launch of the report coincides with the start of Renewable UK’s Global Offshore Wind Conference in London today. At the event. Hitachi Energy will host a roundtable session with industry representatives to discuss key themes highlighted by the report’s authors and the Dogger Bank Wind Farm project as a showcase of best practice solutions for future large-scale energy project delivery.
The report is available here: https://www.imperial-consultants.co.uk/wp-content/uploads/2025/06/Dogger-Bank-Final-Report-16-April-2025.pdf
The new report, researched and written by Kaylen Camacho McCluskey and Dr Aidan Rhodes via Imperial Consultants, explores the challenges of planning and executing an HVDC system on an unprecedented scale and draws conclusions about how this technology could help the UK on its journey to net zero.
The authors drew on the experience of representatives from SSE, Hitachi Energy, and Equinor to provide readers with a detailed account of how the system was developed and to outline clear pathways for future developers.
In their conclusions, Kaylen and Aidan presented how best practice from Dogger Bank could be used to steer the UK’s offshore wind industry towards:
- Greater adoption of HVDC technology and projects
- Strong, stable domestic HVDC supply chains
- Resilient, integrated networks
- Long-term, collaborative business partnerships
Dr Aidan Rhodes, report author and Research Fellow for Energy Policy at Imperial College London, said:
“Wind energy is the UK’s richest renewable energy source and with the right infrastructure and planning could form the backbone of a secure, home-grown energy system fit for our Net Zero future.
“Speaking with individuals directly involved in delivering Dogger Bank and its HVDC transmission system, the resilience required to execute a project of this scale, novelty, and complexity became very clear. I think the innovation here lies as much in the obvious technological achievements, like the 1.2 GW offshore converter station, as it does in the deeply collaborative approach.
“It’s been insightful to hear about experiences from the project, to reflect on how the offshore wind industry has evolved since Dogger Bank was first approved, and to consider how these lessons can be leveraged to address some very pressing challenges, grow domestic expertise in HVDC and support the industry on the road to Net Zero.”
Alan Borland, Turbine Director for Dogger Bank Wind Farm, said:
“Designing and building a world-leading wind farm is a hugely challenging and complex process, with an inevitable amount of highs and lows. As wind farms grow in scale, with increasing distances from shore and technology continuing to evolve, we expect these engineering challenges are only going to become greater.
“In a world where we’re all striving towards the same goals, we think it’s important for developers like ourselves to give future pioneers of offshore wind the chance to learn from our successes and challenges.
“The result of our work with academics from Imperial College London is an insightful document that shines a light on the workings of an offshore wind development team and constructive observations about what the future might hold for HVDC in the journey to Net Zero.”
Grant McKay, Regional Sales Manager from Hitachi Energy, said:
“Dogger Bank is a landmark project that offers invaluable insights for future large-scale energy infrastructure developments in the UK and beyond. This report demonstrates that offshore HVDC transmission systems can be built at scale and speed when underpinned by long-term partnerships and a shared commitment to functionality and efficiency.
“The report reaffirms the critical importance of building resilient integrated networks to ensure a stable and secure energy supply. It also underscores the value of collaboration, where aligning capacity, resources, and expertise leads to greater efficiency and better outcomes.
“We’re incredibly proud of how Dogger Bank is positively impacting energy production and resilience, and the report offers essential considerations for stakeholders developing offshore HVDC connections.”
About Imperial College London
We are Imperial – a world-leading university for science, technology, engineering, medicine and business (STEMB), where scientific imagination leads to world-changing impact.
As a global top ten university in London, we use science to try to understand more of the universe and improve the lives of more people in it. Across our nine campuses and throughout our Imperial Global network, our 22,000 students, 8,000 staff, and partners work together on scientific discovery, innovation and entrepreneurship. Their work navigates some of the world’s toughest challenges in global health, climate change, AI, business leadership and more.
Founded in 1907, Imperial’s future builds on a distinguished past, having pioneered penicillin, holography and fibre optics. Today, Imperial combines exceptional teaching, world-class facilities and a habit of interdisciplinary practice to unlock scientific imagination.
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23rd May 2025 in Press releases, Project news, Supply Chain
- Third North Sea HVDC platform marks installation completion of offshore substations on all three phases of Dogger Bank Wind Farm.
- Pioneering design reduces topside weight by as much as 70% compared to traditional designs.
Dogger Bank Wind Farm and its delivery partners have successfully completed the installation of the HVDC offshore substation platform at Dogger Bank C, marking the installation completion of all three offshore substations on the world’s largest offshore wind farm under construction.
Manufactured and supplied by Aibel and installed by Heerema Marine Contractors’ Sleipnir vessel, the Dogger Bank C platform measures approximately 75 x 50 metres across and 36 metres high and sits on a four-legged steel jacket foundation structure which is fixed to the seabed, at an average water depth of around 23m.
The installation of the Dogger Bank C offshore substation topside onto the platform jacket followed on from the safe installation of the platform jacket by Heerema’s Sleipnir vessel a week earlier.
Olly Cass, Project Director for Dogger Bank Wind Farm, said:
“The installation of our third offshore substation platform marks a significant leap on our journey to delivering renewable energy for around 6 million UK homes annually once the wind farm is complete.
“Our strong partnership with Aibel, Hitachi Energy and our installation partners, with Heerema installing this third platform, has been key to the seamless completion and handover of these three pioneering structures.
“This is a significant moment for the project team, our delivery partners and for the UK’s clean energy transition.”
The innovative Aibel platform has a lean design and was the first unmanned HVDC platform to be installed in 2023, when the first of the project’s three platforms was successfully delivered at the Dogger Bank A phase. The substations are designed to be operated from shore and accessed only by a Service Operations Vessel.
Further commissioning activities will now be carried out on the platform to prepare it for future transmission of renewable energy.
Fitted with Hitachi Energy’s latest generation HVDC converter technology, Dogger Bank is the first offshore wind project in the UK to use this technology to transmit the electricity produced back to shore, ensuring the electricity is transmitted efficiently over long distances while minimising losses.
Each of the three platforms will be capable of receiving 1.2GW of AC power generated by Dogger Bank’s offshore wind turbines and converting that renewable energy to DC, before sending that clean, homegrown power ashore to three onshore convertor stations, near Beverley in East Riding of Yorkshire and near Redcar on Teesside.
Mads Andersen, Aibel President and CEO, said:
“The successful installation of the DBC converter platform marks a proud milestone for Aibel and our partner Hitachi Energy. We are honoured to have contributed to the world’s largest offshore wind farm by delivering three lean and effective converter platforms. This achievement reflects the strength of our collaboration with the client partners, the dedication of our teams, and our shared commitment to accelerating the energy transition.”
Martijn Kuipers, Project Director for Doggerbank C at Heerema, said:
“Completing the installation of the Dogger Bank C offshore substation platform marks a proud milestone for Heerema. The thorough preparations and seamless collaboration between Sleipnir’s skilled crew, our project team, Dogger Bank Wind Farm and our subcontractors, enabled us to safely and successfully install the jacket and topside. This achievement reflects Heerema’s commitment to delivering complex offshore projects with precision and innovation, and we are proud to contribute to the UK’s energy transition.”
