Hornsea 3

Hornsea 3 Offshore Wind Farm will deliver enough green energy to power more than 3 million UK homes. An £8.5 billion infrastructure project, Hornsea 3 will make a significant contribution toward UK energy security, as well the local and national economy.

Image showing offshore wind farm blades at Siemens Gamesa Renewable Energy’s blade manufacturing facility in Hull

Latest construction updates


Get the latest construction updates and view our interactive cable route map.

Ørsted technicians working at the Hornsea 2 offshore wind farm

Frequently asked questions


We answer some of the most frequently asked questions about the Hornsea 3 Offshore Wind Farm.  
Ørsted community event

Working with the community


We have committed £7 million to support local social and environmental projects in areas near our sites in Norfolk and Suffolk through our Hornsea 3 Community Benefit Fund.

Your top five questions answered

  • What’s going on in Oulton and Swardeston?

    We’ve begun to build the onshore part of Hornsea 3.  We are currently laying the cables that will bring the energy generated offshore by Hornsea 3 and connect it to our onshore electricity substation in Swardeston, near Norwich, Norfolk.  

    From there, the energy will be connected to the National Grid so it can be distributed to millions of homes across the UK. So far, we’ve laid about 6 km of cable out of a total of 51 km, so we’re still in the early stages. 

    We’ve also been doing some work on our onshore substation including landscaping. And we’re preparing the land for the battery energy storage system.  

    Read the full Hornsea 3 FAQ document here

  • Why do such large lorries have to go along such small roads?

    As this is such a large national infrastructure project, traffic and deliveries to and from the sites are unavoidable. But we’ve been working closely with local authorities and residents to give advance notice of works taking place to help minimise disruption. 

    Read the full Hornsea 3 FAQ document here

  • Why are you digging up the countryside?

    We’re laying the cabling that will bring energy onshore from our offshore wind farm once it’s built. That requires 51 km of cables to be buried underground onshore. We have agreements in place with landowners on how and where we work. Once cables have been laid, we’ll make good all construction sites and carefully restore the land to how it was before. 

    Read the full Hornsea 3 FAQ document here

  • How will local residents benefit from this project?

    Norfolk is becoming a key hub for green energy, which will bring long-term investment and jobs to the region. We’ve also just launched our Hornsea 3  Community Benefit Fund which commits £7 million (£700,000 every year for the next ten years) to projects developed by, and for the benefit of, the local community in the North Norfolk and East Anglia region. We are committed to making a positive impact in the communities where we construct and operate our offshore wind farms.  

    Learn more about our Hornsea 3 Community Benefit fund

  • How can I get in touch with you?
    You can reach us via freephone: 0800 158 2354 or email: community@hornsea3.co.uk
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Contact us

We are always available for further questions about the construction progress of Hornsea 3. Please feel free to reach out to a member of our Community Relations Team. Our free telephone line is open between 9 am to 5:30 pm. If you are unable to reach us there, please leave a voicemail or email us and we will get back to you. 


Email: community@hornsea3.co.uk

Telephone: 0800 158 2354

Explore more about the project

Seagrass

Protecting & restoring nature


Learn about the steps we are taking to protect and restore nature during the construction and operation of what will be the world’s single largest offshore wind farm.
Offshore wind construction

Glossary of Hornsea 3 terms


This guide helps explain some of the specialised terms used to describe the engineering and construction of offshore wind farms.
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Hornsea 3 Compulsory Purchase Order


On 14 March 2024 the Secretary of State for Energy Security and Net Zero confirmed with modifications the Compulsory Purchase Order for new rights in Hartlepool.