Helping us to build a cleaner, greener energy system. 

About interconnectors

Interconnectors are high voltage cables that are used to connect the electricity systems of neighbouring countries. They allow us to trade excess power, such as renewable energy created by the sun, wind and water, between different countries.

We already have interconnectors linking us to France, Belgium, Norway and the Netherlands, and each year they power five million homes. We’re currently working on another interconnector to link us with Denmark, and by 2030, 90% of the energy imported by our interconnectors will be from zero carbon energy sources.

Our latest interconnector: North Sea Link

North Sea Link (NSL) is our latest interconnector. This high voltage direct current (HVDC) electrical interconnector connects the British electricity network at ​Blyth in Northumberland with the Norwegian village of Kvilldal, and is able to transport enough clean electricity to power 1.4 million UK homes.

Mountains and Sea

About North Sea Link: Our latest interconnector

Find out more about the world’s longest sub-sea interconnector, the benefits it will deliver and the people who helped bring this exceptional feat of engineering to life.

Discover North Sea Link

Interconnectors in operation



BritNed is an independent joint venture with TenneT, connecting the UK and the Netherlands since 2011.

IFA construction worker


IFA is our first link between the UK and France, operated together with RTE since 1986.

Nemo Link

Nemo Link

A joint venture with Elia connecting the UK and Belgium. In operation since January 2019.  

IFA2 construction worker


Find out more about our second link to France, developed with RTE.

Mountains and Sea

North Sea Link

Find out more about the world’s longest subsea interconnector, linking the UK and Norway.

Viking Link

Under construction: Viking Link

Viking Link is an electricity Interconnector currently under construction together with Energinet. When complete, Viking Link will be the world's longest sub-sea and land connection between Denmark and the UK. ​

Find out more about the project by watching the video or following the button below.

More about Viking Link
A map of connecting countries via interconnectors and MPIs

The next generation interconnector

Interconnectors already provide a way to share electricity between countries safely and reliably. But what if they could do much more than that? What if interconnectors could become an offshore connection hub for green energy?

More on Multi-Purpose Interconnectors

Learn more about our interconnectors

Watch this animation to discover which countries are already connected by our interconnectors and where they’re under construction. And see all the different regions that will benefit from the exchange of clean and green energy thanks to these interconnector projects.