Being delivered for a joint venture between the UK National Grid and Norwegian transmission system operator Statnett SF, the 1.4GW high voltage direct current (HVDC) interconnector will be the longest subsea line ever laid and a key artery in the construction of a future European supergrid.

"This project's moving ahead is a clear signal that similar offshore projects in Europe have robust business cases and more credibility now that we are progressing towards an interconnected single market," Raul Gil, chief operating officer of Prysmian Powerlink, tells Recharge.

"This