Linxon UK Ltd has been awarded a major contract worth £143 million by SSE plc for the construction of an alternating-current (AC) electricity substation on the Isle of Lewis, according to a contract award notice published on the UK Government’s Find a Tender service.

The notice confirms that the contract was formally concluded on 22 December 2025 following a competitive procedure with negotiation — a procurement route typically used for complex works requiring buyer-supplier dialogue before final tender submission.

Project and procurement details

• Contracting authority: SSE plc, headquartered in Perth, Scotland (region code UKM – Scotland).

-- Advertisement --

• Contract title: AC Substation, Isle of Lewis.

• Type of contract: Works, classified under substation construction work (CPV code 45232220).

• Procurement value: £142,953,074.40 (excluding VAT).

• Awarded to: Linxon UK Ltd, based in Epsom, Surrey (not an SME).

• Place of performance: Isle of Lewis, Scotland.

• Number of tenders received: 1.

According to the notice, the work covers the initial construction phase of the proposed substation — a critical infrastructure component to support electricity transmission needs in the Outer Hebrides. The award was made on the basis of price.

The Find a Tender service is the UK Government’s official portal for high-value public sector and utilities procurements, where contracts with an estimated value above statutory thresholds are published in compliance with procurement regulations.

This award follows the broader Western Isles transmission upgrades programme by SSEN Transmission and other developers, aimed at enhancing grid capacity and reliability in the Highlands and Islands — a region with ongoing renewable generation and network reinforcement projects.