The power cables were installed by the NKT Victoria cable-laying vessel. Credit: © NKT.

Danish cable supplier NKT has announced the commissioning of the 220kV high voltage alternative current (HVAC) cable system for the 1.3GW Hornsea II offshore wind farm.

Owned by Ørsted, Hornsea II is located around 89km from England’s east coast and is said to become the world’s largest offshore wind facility once fully operational.

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The offshore facility features 165 wind turbines and will have the capacity to power 1.3 million households.

It is expected to come online later this year.

Ørsted Hornsea II programme director Patrick Harnett said: “Constructing a project of this size and scale is only possible through strong collaboration, hard work, and dedication.

“We work very closely with our partner companies and have the finishing line in sight as we install the remaining turbines and continue testing, commissioning and energising Hornsea II.”

Power cables for Hornsea II were produced at NKT’s factory in Karlskrona, Sweden, and installed by the NKT Victoria cable-laying vessel.

The factory is said to be powered by fully renewable energy, minimising the cable system’s carbon footprint.

HV Solutions Karlskrona executive vice-president and head Claes Westerlind said: “Offshore wind is a cornerstone in mitigating climate change and we are pleased to continue to be a key player in making offshore wind a main element in the green transformation of the UK power supply.

“With Hornsea II, we are happy to continue the long-term collaboration with Ørsted in connecting a greener world.”

Other wind parks that NKT has connected to the UK mainland include Hornsea I, Moray East and the Walney Extension.

Last month, Ørsted agreed to sell its 50% stake in the Hornsea II project to AXA IM Alts and Crédit Agricole Assurances for £3bn ($3.9bn).

The deal is expected to close in the second half of this year once the wind farm has been fully commissioned.