NSN Link

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Not to be confused with Scotland-Norway interconnector.
NSN Link
Location
Country Norway
United Kingdom
General direction east–west–east
From Kvilldal, Norway
Passes through North Sea
To Blyth, England
Ownership information
Partners Statnett
National Grid plc
Construction information
Manufacturer of substations ABB
Installer of substations ABB
Expected 2020
Technical information
Type submarine cable
Type of current HVDC
Total length 750 km (470 mi)
Power rating 1,400 MW
Number of circuits 2

The NSN Link (also known as North Sea Network, HVDC Norway–Great Britain, and Norway–UK interconnector) is a subsea high-voltage direct current electricity cable under construction between Norway and the United Kingdom. It is a joint project of the transmission system operators Statnett and National Grid plc.

History[edit]

The project was first proposed in 2003 when Statnett and National Grid prepared a 1,200 MW interconnector between Suldal in Norway and Easington, County Durham, in the United Kingdom. This project was suspended.[1][2]

On 6 October 2009, Statnett and National Grid announced they were conducting a feasibility study of the cable. According to the pre-feasibility study the project will be economically and technologically feasible. It will be a commercial cable jointly owned by Statnett and National Grid NSN Link Limited, a subsidiary of National Grid.[3] In March 2015, Statnett and National Grid announced a decision to "start the construction phase",[4][5][6] a month after announcing the "Nemo link", a similar connection between the United Kingdom and Belgium.[7]

Route[edit]

The cable will run from Kvilldal, Suldal, in Norway, to Blyth in the United Kingdom.[8] The route survey was conducted by MMT in 2012.[9][10]

The interconnection may also connect the North Sea wind farms as well as offshore oil and gas platforms, becoming the backbone of the proposed North Sea Offshore Grid.[1][11]

Technical description[edit]

The cable will be 730 kilometres (450 mi) long.[8] It has a planned capacity of 1,400 MW.[4] It is estimated to cost €2 billion and become operational in 2021.[4][12] The offshore cable will be supplied by Prysmian. The cable will be manufactured at the Arco Felice factory in Naples, Italy, and it will be installed by the cable-laying vessel Giulio Verne.[8] Cable for the fjord, tunnel and lake sections, and the onshore connection in Norway will be manufactured at the Halden plant in Norway and supplied by Nexans. It will be laid by using Capjet trenching system and the cable-laying vessel Skagerrak.[8] The HVDC converter stations will be built and installed by the ABB Group.[8]

See also[edit]

References[edit]

  1. ^ a b Bradbury, John (2009-10-06). "UK Norway "supergrid" agreement". Offshore247.com (Offshore Media Group AS). Retrieved 2010-11-14. 
  2. ^ "National Grid plans UK-Norway interconnector". Power Engineering International (PennWell Corporation). 2009-10-07. Retrieved 2010-11-14. 
  3. ^ "Will explore HVDC connection between Norway and Great Britain" (Press release). Statnett. 2009-10-06. Retrieved 2010-11-14. 
  4. ^ a b c National Grid. "The world's longest interconnector gets underway". Retrieved 26 March 2015. 
  5. ^ "Norge og Storbritannia nær avgjørelse om verdens lengste sjøkabel" [Norway and Great Britain are close to the decision on the world's longest submarine cable]. Teknisk Ukeblad (in Norwegian). 2015-01-05. Retrieved 2015-07-14. 
  6. ^ "UK, Norway roll with 1.4GW link". reNEWS. 2015-03-23. Retrieved 2015-07-14. 
  7. ^ "National Grid rolls with Nemo link". reNEWS. 2015-02-27. Retrieved 2015-07-14. 
  8. ^ a b c d e Lee, Andrew (2015-07-14). "ABB, Prysmian and Nexans share UK-Norway link bounty". ReCharge. (subscription required). Retrieved 2015-07-14. 
  9. ^ "MMT to Survey UK-Norway HVDC Cable Route". Offshore WIND. 2012-03-30. Retrieved 2014-11-20. 
  10. ^ Pagnamenta, Robin (2009-10-07). "North Sea cable could bring Norway's energy to UK". The Sunday Times (Times Newspapers Ltd). Retrieved 2010-11-14. 
  11. ^ Gibbs, Walter (2010-08-17). "Norway hydro can aid Europe move to renewables-IEA". Fox Business (FOX News Network). Retrieved 2010-11-14. 
  12. ^ "Cable to the UK". Statnett. 2014-10-17. Retrieved 2014-10-17. 

External links[edit]