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Introducing the Scotland to England Green Link – SEGL1
Delivering a cleaner, greener future

Introducing SEGL1

Clouds and field SEGL1

The UK is a world leader in offshore wind energy and its target of becoming net-zero in all greenhouse gases by 2050 for England and Wales, and 2045 for Scotland is now enshrined in law.

As the country shifts away from traditional forms of fuel to heat homes, charge vehicles and power businesses, there will be a greater need for green electricity. By the end of this decade, the Government aims for every home in the country to be powered by offshore wind. To help deliver this greener energy to homes and businesses across the UK, we need to increase the capability of our network between Scotland, with its many renewable energy sources, and the rest of the UK. To do this, we are proposing to construct two new High Voltage Direct Current (HVDC) electricity ‘superhighways’; one from the Torness area in East Lothian, to Hawthorn Pit in County Durham (SEGL1) and the other from Peterhead in Aberdeenshire to Drax in North Yorkshire (SEGL2).

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Both links will run under the North Sea, with SEGL1 running from a converter station in the Torness area, before coming on land just north of Seaham in County Durham.

The link will then run underground for around 9km to a new converter station at Hawthorn Pit. We will also install a new substation here, and a connection between Hawthorn Pit and the substation.

This project is being developed in partnership with Scottish Power Transmission (SPT), the Transmission Owner for Central and Southern Scotland.

We are in the early planning stages and we will need consent from local authorities before our plans are finalised.

If approved, we intend to begin construction in 2023 and complete the works in 2027.

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Your opportunity to shape our plans

As part of the consenting process, it is important that we hear the views of local people and we’ll be speaking to local communities, elected members and interested groups to explain our plans and ask for feedback. Knowing what matters to you, matters to us, so that we can see if we can take that into account when developing our plans.

We will be holding public consultation events in the Spring of 2021, where we look forward to hearing your views. This website will be updated with more information closer to the time, but if you have any questions in the meantime, please visit the contact us page of this website to get in touch.

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About National Grid


About us

National Grid sits at the heart of Britain’s energy system, connecting millions of people and businesses to the energy they use every day. We bring energy to life – in the heat, light and power we bring to our customer’s homes and businesses; in the way that we support our communities and help them to grow; and in the way we show up in the world. It is our vision to be at the heart of a clean, fair and affordable energy future.

Our individual companies run the systems and infrastructure that deliver electricity and gas across the country.

National Grid Electricity Transmission own, build, and manage the electricity grid in England and Wales to which many different energy sources are connected. National Grid Gas Transmission own, build, and manage the gas transmission network in Great Britain, making gas available when and where it’s needed. National Grid ESO (Electricity System Operator) control the movement of electricity around the country ensuring supply meets demand. Finally, National Grid Ventures (NGV) is the competitive division of National Grid, investing in energy projects, technologies, and partnerships to accelerate the development of our clean energy future.

Learn more about us by visiting our main site.

Contact us

If you have any questions about our project, please get in touch with a member of our community relations team.

You can call or email the team on 0808 1968 405 or at [email protected]

You can also register for updates from the project by filling out the form below.