The Viking Link Interconnector project will allow power to flow between the UK and Denmark. Credit: National Grid.

Electricity and gas transmission company National Grid, along with Siemens Energy, has begun construction of the Viking Link electricity interconnector.

The Viking Link Interconnector project will create the longest power interconnector in the world. The high-voltage direct-current (HVDC) link will connect the UK and Denmark via subsea cable.

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Spanning 765km subsea and onshore, the Viking Link is a 1.4GW high voltage electricity interconnector project, connecting Bicker Fen in Lincolnshire, UK to Revsing in South Jutland, Denmark.

The project is owned and operated by National Grid Ventures, an arm of National Grid. It has formed the Viking Link joint venture with Energinet, a Danish electricity system owner and operator.

In a statement, National Grid says the initiation of the project represents a significant step in the UK’s journey towards net zero.

National Grid Ventures Viking Link project director Mike Elmer said: “We’ve already completed the initial groundwork with archaeological and ecological surveys as well as waterworks studies, however, this is a key construction milestone for the project.

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“Viking Link will play a vital role in helping to decarbonise the UK’s power supply on the journey to a net zero-carbon energy system. It will enable access to a cleaner greener supply of electricity, which will make energy more secure and affordable for consumers.”

National Grid has said it intends to offer employment opportunities to the local community. It also aims to procure products and services from local companies throughout the project.

Siemens Energy will construct the converter stations on both ends of the interconnector link.

The company initiated the first stage of works this month, starting with a 2.4km long access road for the Bicker Fen converter station. This will take 9 months to build, while it plans to complete the project by 2023.

Once completed, the €2bn subsea electricity cable will have the capacity to power more than a million homes in the UK.