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Application approved

Latest update

On 30 October 2026, the Secretary of State for Energy Security and Net Zero granted development consent for Sea Link. You can read more about the decision on the Planning Inspectorate's website here.

The granting of development consent allows us to move towards construction, and help meet the UK's growing need for cleaner, more secure and homegrown power. 

With construction expected to commence in early 2027, we will now work with local authorities and other key stakeholder to agree final technical details and obligations. These include precise measures for traffic and environmental management. This process is known as discharging requirements. It is similar to meeting the conditions set on local planning applications. 

We know you will want to know more about how and when we'll be working in your area. Over the next few months, we will share more information on our website and publicise this by email and our project WhatsApp channels. We will also publish a community newsletter before construction begins. You can register to receive future email updates about the project here.

About Sea Link 

Sea Link is a new 138 km primarily offshore high voltage electricity link between Kent and Suffolk.

Sea Link is a key part of The Great Grid Upgrade, the largest overhaul of the electricity grid in generations. It will help provide homes and businesses with secure, cleaner, home-grown British energy from more affordable sources. 

With demand for energy set to double by 2050, Sea Link will carry energy between Kent and Suffolk in either direction to where it is needed, whilst avoiding existing bottlenecks on the network around London. 

Why Sea Link is needed?

The existing electricity network in both Kent and Suffolk needs upgrading. This is because the UK’s electricity grid was originally built in the 1960s to connect electricity generated in power stations from fossil fuels, such as coal, from the North and Midlands of England and South Wales.   

As the UK moves away from fossil fuels and increases clean energy generation, which is largely offshore, we need to connect electricity in new places.

Demand for electricity is also expected to increase by 50% by 2035, and double by 2050, as we decarbonise the energy that’s used for things like heating and transport. 

Therefore, significant new infrastructure is needed to connect this clean energy from where it’s now generated to homes and businesses.  

Project timeline

2022 - 2024

Pre-application public consultations

March 2025

Submission of application for development consent

2025 - 2026

Examination of application for development consent

Late 2026

Application for development consent approved

2027-2031

Construction works take place

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Contact the team

If you have any questions or comments about Sea Link, please get in touch by emailing [email protected], by calling 0808 134 9569 or by writing to Freepost SEA LINK. 

Sea Link is just one of several electricity network reinforcements that are needed to ensure the electricity transmission network is fit for the future. To read more about he Great Grid Upgrade, please click below.

The Great Grid Upgrade

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