Main construction starts on central part of interconnection between Western Isles and UK

SSEN Transmission has started main construction of the Lewis Hub project, a central part of the interconnector that will link the Scottish Western Isles to the UK national electricity transmission network for the first time.

The groundbreaking, which marks the project’s progression from initial site preparation into main construction, was held on November 5 at the Lewis Hub site at Arnish Moor near Stornoway.

Lewis Hub will comprise a high-voltage direct current (HVDC) converter station and AC substation and will form a central part of the wider Western Isles HVDC Link.

The 1.8 GW interconnector will consist of approximately 83 kilometers of underground cable and 81 kilometers of subsea cable, connecting the Lewis Hub HVDC converter station and AC substation on the Isle of Lewis to the mainland.

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