Interconnectors are part of how the European energy market moves to a sustainable future and GridLink will contribute to the transformation.

The market’s many challenges relate to meeting environmental targets while overcoming the aging of existing infrastructure. Meeting these challenges requires both greater use of renewable energy and an improved transmission network to distribute energy and ensure security of supply.


The European Commission awarded GridLink the status of Project of Common Interest (PCI) in 2017. This recognises the project’s key contribution to realising Europe-wide goals related to energy policy and climate change.

Please use the link below for information on Projects of Common Interest:


GridLink intends to positively engage with all stakeholders throughout the development phase, construction works and during operation of the interconnector. We have prepared this information leaflet as a short introduction to the overall project.

For more detailed information, please see our Non-Technical Summary and Environmental Impact Assessment.

Please find a link to the Information Leaflet below:


Please find a link to the Non-Technical Summary below:

For more detailed information on environmental issues, please see our Environmental Impact Assessment.

Design of the Converter Stations and Cables

We have designed the interconnector to the highest industry standards and to deliver optimal efficiency when it comes online in 2025. The design also takes into account ways to minimise environmental impacts during construction and operations by ‘building-in’ best practices and mitigation measures from an early stage.


GridLink carried out a study of the network constraints in the UK with National Grid Electricity Transmission (NGET).


GridLink carried out a study of the network constraints in France with réseau de transport d'électricité (RTE).

environmental impact assessment

GridLink’s impact on the environment is one of our primary concerns and we have taken environmental issues and constraints into account from the start of the project.

  1. Avoid, wherever practicable, negative effects on the environment;

  2. Reduce any negative effects that cannot be avoided as much as reasonably practicable;

  3. Compensate for any potentially significant residual effects.


Building and operating the new GridLink interconnector requires a number of permissions, authorisations and licenses (together known as “permits”) from regulatory authorities in the UK and France.

The main permits that are required in the UK are:

Permit Applicable Legislation Competent Authority 
License to use seabed Crown Estate Act 1961 Crown Estate 
Planning Permission Town and Country Planning Act 1990 Medway Council 
Marine Licence Marine and Coastal Access Act 2009 Marine Management Organisation 
Environmental Permit for flood risk activitiesEnvironmental Permitting (England and Wales) Regulations 2010 Environment Agency 
Land Drainage Consent Land Drainage Act 1991, as amended Lower Medway Internal Drainage Board 
River Works License
(Medway Estuary) 
Medway Ports Act 1973 Peel Ports 
River Works License
(Thames Estuary) 
Port of London Act 1968 Port of London Authority 

The main permits that are required in France are:

Permit Applicable Legislation Competent Authority 
Environmental authorisation / Unique authorisation, including the procedures required for the Water Laws, Protected Species and ESPOO Convention Ordonnance n°2014-619 and Environment Code  Prefecture du Nord represented by Direction Départementale du Territoire et de la Mer (DDTM)  
Maritime public area utilisation concession – Port of Dunkerque (DPM GPMD) Public Property Code Grand Port Maritime de Dunkerque (GPMD) 
Maritime public area utilisation concession – territorial water (DPM TW) Public Property Code Prefecture du Nord Délégation à la Mer et au Littoral (DML) 
Marine archaeological preventative convention Heritage Code Département des recherches archéologiques subaquatiques et sous-marines (DRASSM) 
Archaeological preventative decision  Heritage Code  LDirection Régionale des Affaires Culturelles (DRAC) 
Building permit Town Planning Code  Grand Port Maritime de Dunkerque (GPMD)