Factory/PlantOther manufacturingOverseas

Sumitomo Electric opens UK's first HVDC submarine cable manufacturing plant at Nigg Port

Sumitomo Electric Industries, Ltd.Nigg, ScotlandPublished Oct 20, 2026

InvestmentGBP 350M

PhaseCompleted

StartMay 2024

CompletionOct 19, 2026

Construction

Today

20252026

Completed.

Sumitomo Electric opened its new HVDC submarine power cable manufacturing plant at Nigg Port in Scotland's Highland region. The company invested £350 million in the facility, which manufactures 525 kV XLPE-insulated submarine cables and serves as its European offshore cable hub.

Project facts

Owner: Sumitomo Electric Industries, Ltd.
Listing: 5802 Tokyo
Facility: Factory/Plant
Sector: Other manufacturing
Location: Nigg, Scotland (overseas)
Investment: GBP 350M — total
Scale / capacity: 58,000 sqm manufacturing space; 525 kV HVDC XLPE-insulated submarine cables
Construction start: May 2024
Completion: Oct 19, 2026
Announced: Oct 19, 2026
Themes: power-grid, renewable-energy

Figures and schedules are as announced by the company or the public body concerned; plans can change. Amounts that were not disclosed are recorded as not disclosed, never estimated.

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