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SSEN Transmission is the licence holder for the transmission system in the north of Scotland. To meet the government’s target for renewable generation, and for the development of the existing infrastructure, significant work is being undertaken on the transmission system. This work includes the building and rebuilding of overhead lines, the development of grid substations, the construction of HVDC converter and cable systems, and the construction of FACTS devices. The projects and work being undertaken are in line with the NESO (National Electric System Operator) published Holistic Network Design (HND, Pathway to 2030 and Beyond 2030) reports. SSEN Transmission is responsible for delivering the complex technology and network solutions relating to any Scottish Island or network solutions with offshore assets. Particularly, any electricity system transmission infrastructure, either offshore or onshore, including HVDC, FACTs, AC networks, cable systems, and offshore installations
The purpose of establishing this Services Framework is to ensure SSEN Transmission has access to a range of specialist engineering services.
The Services will include but not be limited to engineering competencies related to engineering management, engineering drawings, plant/equipment/system specification, electrical design, civil design, offshore installation design, offshore works, construction-site support, installation support, commissioning support, consent related works, engineering compliance, risk management, risk analysis, and design assurance.
The Consultant will be able to provide support during all project stages including concept, option selection, FEED, detailed design, manufacturing, testing, construction, installation, and commissioning stages.
The Services will be Lotted.
Lot 1: HVDC & FACTS: Expertise in all aspects of HVDC and FACTS devices.
Lot 2 :Cable Systems: Expertise in HV Cable Systems, covering both AC and DC technology for land and submarine applications.
Lot 3; AC Networks: Expertise in all aspects of AC Networks.
Lot 4: Offshore and Subsea Services: Expertise in preparing requirements and specification documents to provide technical direction and governance for the design, delivery, operation, maintenance, and decommissioning of offshore substation installations.
No supplier information available.
This procurement was divided into 4 lots, each awarded separately.
| Lot | Value | Status |
|---|---|---|
| Lot 1 HVDC & FACTS Dec 2025 – Dec 2028 | £55,000,000 | active |
| Lot 2 Cable Systems Dec 2025 – Dec 2028 | £55,000,000 | active |
| Lot 3 AC Networks Dec 2025 – Dec 2028 | £55,000,000 | active |
| Lot 4 Offshore and Subsea Services Dec 2025 – Dec 2028 | £55,000,000 | active |
Weightings from the notice, applied to every lot.
Changes the buyer published to this notice after it first appeared.
Submission deadline extension to 02/10/25