SSEN Transmission has begun early preparatory works for its Lewis Hub project with ecological surveys now under way at the Arnish Moor site.
The activities are designed to enable safe and efficient progression of the development while minimising disruption to the local community, the company said.
Survey work to monitor nesting birds and other protected species will continue throughout the project, according to SSEN Transmission.
Further early works in the coming weeks include installing deer fencing around the proposed AC substation and converter station sites, delivering cabins to a temporary storage area and removing invasive plant species.
Many of the tasks will be carried out by local contractors in line with SSEN Transmission’s commitment to supporting businesses across the Western Isles.
The preparatory works will inform the next stage of the consenting process, including applications for the approval and discharge of planning conditions set by Comhairle nan Eilean Siar.
Meanwhile, principal contractor Balfour Beatty has lodged a planning application for a temporary accommodation village in Stornoway to house up to 200 workers.
The proposed village on part of the former Dormitory Site off Willowglen Road would feature modular en-suite units with on-site catering, leisure and welfare facilities.
If consented, construction would start in autumn 2026 with use planned from mid-2027 to 2030.
“As part of our preparations for the development of the Lewis Hub site, we will be undertaking some essential activity in readiness for enabling works, which we hope to begin in spring,” said Callum Wardrop, SSEN Transmission’s project director for the Lewis Hub.
“While we do not expect the public to experience significant disruption as a result of this activity, we remain focused on minimising any impacts wherever possible.”
“We continue to make good progress in preparing further submissions to Comhairle nan Eilean Siar with a view to commencing development at the site, and enabling works and main construction activity will only proceed once the relevant planning conditions have been satisfied,” he added.
“Meanwhile, we are working with our principal contractors to proactively plan accommodation for the Lewis Hub workforce.”
Balfour Beatty’s director of operations George Young said: “Throughout the development of our proposals for the temporary accommodation village, we have worked closely with the local community to ensure all views are fully understood and reflected in our plans.”
“As we begin early preparatory works on the Lewis Hub we remain committed to contributing positively to the community and local businesses, leaving a lasting and positive legacy for the local area.”
RJ McLeod construction director Colin Maclean added: “We welcome the opportunity of being involved in the HVDC connection works on Lewis and to continue working jointly with SSEN Transmission and their partners, local suppliers and the local community.”