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What is North Sea Link (NSL)? | NSN Link

What is North Sea Link (NSL)?

Statnett and National Grid NSL Limited are working together on proposals to construct an electricity link between Norway and the UK, North Sea Link (NSL).

NSL will connect the electricity systems of the two countries via high voltage subsea cables from Kvilldal in Norway to Blyth in the UK.

Linking Nordic and British energy markets will bring a number of benefits, including:

  • Increasing the security of electricity supplies for both countries.
  • Providing opportunities for shared use of renewable energy – helping both countries to meet domestic and international renewable and climate change targets.
  • Providing additional transmission capacity for electricity to be traded between both countries, supporting economic growth in Norway and the UK.

Passing through Norwegian and British waters, NSL aims to be operational in 2021 and will be the longest subsea interconnector in the world.


  • Owners: Statnett and National Grid NSL Limited
  • Locations: The cables will link Kvilldal in Norway and Blyth in the UK
  • Planned capacity: 1400 MW
  • Voltage: 515 kV
  • Length: 720 km
  • Completion: 2021