Iljin Electric Secures Entire Scope of Offshore Wind Underground Transmission Lines

Accelerating Market Leadership in Europe’s Extra-High Voltage Power Grid Sector

Iljin Electric has secured an additional contract in the UK for the construction of extra-high voltage underground transmission lines worth approximately 190 billion won, bringing its total order intake for this single project to a record 271.6 billion won—the largest ever in the company’s cable business history.


On October 2, Iljin Electric announced that it had won an additional order for the extra-high voltage underground transmission line construction as part of the UK’s offshore wind power grid expansion project. The value of this additional order is around 104 million pounds (approximately 187.1 billion won). Including the 84.5 billion won contract awarded in July, the total value of contracts for this project alone amounts to 271.6 billion won. This represents the largest-ever contract for a single project since Iljin Electric entered the cable business.

Yoo Sangseok, CEO of Iljin Electric (right), is posing for a commemorative photo at the contract signing ceremony in the UK on the 1st (local time). Iljin Electric

Yoo Sangseok, CEO of Iljin Electric (right), is posing for a commemorative photo at the contract signing ceremony in the UK on the 1st (local time). Iljin Electric

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This project involves constructing underground transmission lines to deliver renewable energy generated from the UK's large offshore wind farms to urban areas and demand centers. With this additional contract, Iljin Electric will be solely responsible for supplying and constructing underground transmission lines across the entire project section. The company will play a core role in advancing the UK's government-driven initiatives to decarbonize its power grid and develop renewable energy infrastructure.


Underground transmission lines are a method of transmitting electricity via high-voltage cables buried underground in areas where it is difficult to build overhead towers, such as city centers or environmental protection zones. This advanced transmission technology is recognized for its superior aesthetics and safety, as it is less affected by adverse weather or natural disasters.


Earlier this year, Iljin Electric joined the "long-term supply chain partnership" program of a leading UK power company as a final partner. Gaining official certification of its technological reliability in the UK's highly regulated power market—where technical and quality barriers are high—paved the way for these large-scale contracts. Leveraging this achievement, Iljin Electric plans to further expand its participation in upcoming next-generation power grid projects ordered sequentially in the UK.



An Iljin Electric official stated, "This additional project is a monumental achievement that marks the greatest milestone in our cable business history. Based on our thoroughly proven extra-high voltage technology and construction capabilities, we will take an aggressive marketing approach, not only in the UK but also in extra-high voltage power grid projects across Europe, which is undergoing a major shift towards carbon neutrality."


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