Constructed by Scottish & Southern Electricity Networks, it is capable of transmitting up to 1,200 MW of power.

[2] It was officially completed in January 2019, under budget at a cost of £970 million, and was reported as the largest single investment in the northern Scottish electricity network since the 1950s.

[3][1][4] The link was constructed to improve the connectivity of the Scottish electricity transmission network, and allow increased flow of electricity from renewable energy sources in the north of Scotland, such as the Beatrice and Dorenell wind farms.

[5] The Caithness–Moray link was approved by regulators in 2014,[5] with the contract for laying the undersea cable awarded to NKT.

[7] After the addition of the converter station, Blackhillock Substation became the largest in the UK, at the size of 24 football pitches.