North Sea Link - Worker with Fjord
North Sea Link
Discover more about our latest interconnector, connecting the UK and Norway to share clean energy via the world’s longest subsea cable.

Connecting the UK to clean, reliable energy

North Sea Link (NSL), a joint venture with Norwegian system operator Statnett, is our latest interconnector to come into operation. Stretching 720 kilometres under the North Sea, at depths of up to 700 metres, NSL is capable of sharing up to 1400 megawatts of electricity – enough to power around 1.4 million UK homes.

NSL is our fifth interconnector. We already have links connecting the UK to the energy systems of Belgium, France and the Netherlands. By 2024, National Grid will operate enough interconnector capacity to power around 8 million UK homes.

Working together to deliver a world first

An international team of experts spent more than 4 million working hours over 6 years to deliver the project, finding innovative ways to get the state-of-the-art cable through fjords and mountains and across the North Sea. ​

Find out more about this incredible partnership below.​

The building of North Sea Link

The building of North Sea Link

Two countries, six years, one goal. Watch our timelapse footage to get a behind the scenes view of the work at either end of the cable.

Watch our timelapse
North Sea Link in numbers

North Sea Link in numbers

Big projects mean big numbers. Find out the facts behind this engineering marvel under the sea.

Watch now
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Trade with clean energy

North Sea Link trades via the appointed Power Exchange, Nord Pool/EMCO​.

Contact the team today to register your interest.

Get in touch

ventures :

Interconnectors – separating the myths from the facts

There are a lot of common misconceptions about interconnectors and the role they play in helping us to reach net zero. Find out the truth about these giant undersea electricity cables and how they’re helping to provide us with cleaner, greener energy.

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North Sea Link Energy Education Centre

A free facility designed to kick start pupils’ understanding of energy, sustainability and interconnectors, and encourage an interest in STEM subjects and careers.

Energy explained icon interconnector

What are electricity interconnectors?

Electricity interconnectors are high-voltage cables that connect the electricity systems of neighbouring countries. Find out more about them here.

COP26: Coming together to tackle climate change

COP26 is the world’s most significant summit on climate change, and in 2021 it’s being hosted in the UK. Find out more about the conference and why we’re excited to be one of the COP26 Principal Partners.