The world’s longest land and subsea interconnector simply got here on-line


The world’s longest land and subsea interconnector – between the UK and Denmark – began business operations right this moment.

The brand new Viking Hyperlink electrical energy interconnector has a capability of 1.4 gigawatts (GW) and stretches for 475 miles underneath land and sea. It joins the Bicker Fen substation in Lincolnshire with the Revsing substation in southern Jutland, Denmark. 

Excessive wind era outputs within the UK and Denmark are unlikely to occur concurrently, so surplus vitality will likely be transmitted by means of the interconnector to the place the extent of demand is larger. 

The £1.7 billion ($2.16 billion) venture is a three way partnership between the UK’s Nationwide Grid and Danish nationwide transmission system operator Energinet. Nationwide Grid says that the world’s longest land and subsea interconnector can transport sufficient electrical energy for as much as 2.5 million UK properties, bringing over £500 million ($637 million) of cumulative financial savings for UK shoppers over the subsequent decade, because of cheaper imported energy from Denmark.

Initially, Viking Hyperlink will likely be working at a capability of 800 megawatts (MW) earlier than rising over time to 1.4 GW over the approaching yr.

In its first yr of operation, Viking Hyperlink is predicted to avoid wasting round 600,000 tonnes of carbon emissions – equal to taking roughly 280,000 vehicles off the highway.

Katie Jackson, the president of Nationwide Grid Ventures, which runs Nationwide Grid’s interconnector enterprise, mentioned:

As we deploy extra wind energy to satisfy our local weather and vitality safety targets, connections to our neighboring international locations will play a significant position [in] rising [the] safety of provide and decreasing costs for shoppers.

Stretching additional throughout land and sea than any of our current hyperlinks, it connects the UK to scrub, inexperienced Danish vitality, enhancing safety of provide and bringing large carbon and price financial savings for UK shoppers.

When it got here to the development of Viking Hyperlink, Prysmian Group manufactured the HVDC offshore cable and laid the cable on the seabed utilizing a custom-made vessel, the Leonardo Da Vinci, and it was buried utilizing Asso trenchers.  

Prysmian Group additionally manufactured the HVDC land cable, and Balfour Beatty put in it within the UK. NKT made the Danish land part, and Monck put in it.

Earlier this yr, Nationwide Grid introduced joint plans with Dutch transmission system operator TenneT for a brand new 1.8 GW interconnector between the UK and the Netherlands known as LionLink. It’s anticipated to return on-line within the early 2030s.

Learn extra: The world’s longest subsea cable that can ship clear vitality from Morocco to the UK simply obtained an enormous increase

Photograph: Nationwide Grid

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