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PROCUREMENT OPPORTUNITY

FW Services - Specialist Engineering Services 1030

SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC · Pipeline notice on Find a Tender

Tender information last checkedLast checked 30 Sept 2026, 05:40.

Opportunity overview

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.

Classification

  • CPV71300000 — Engineering services
  • CPV71320000 — Engineering design services
  • CPV71356000 — Technical services

Lots

  • HVDC & FACTS£55m
  • Cable Systems£55m
  • AC Networks£55m
  • Offshore and Subsea Services£55m

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
10244
Status
active
Above Threshold
Yes
Procurement Method
selective
Main Procurement Category
services
How to submit
Scottish Hydro Electric Transmission plc invite interested suppliers to view the PQQ Documents on our Jaggaer eprocurement system under "Current Opportunities" here: https://sse.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=436 Full details of the service required and how to respond to the Pre-Qualification Questionnaire can be found on that page
Procurement Method Details
Competitive flexible procedure
Expression Of Interest Deadline
2 Oct 2025, 12:00

Procedure

Features
PQQ to be issued - Two step procedure under PA23 utilising Jaggaer / Find a tender. Following PQQ evaluation, down selection will be made to move to ITT stage. Awards will be made per Lot. Total of four (4) available Lots

Amendments

Entry 1
Id
058412-2025
Description
Submission deadline extension to 02/10/25

Legal basis

Id
2023/54
Scheme
UKPGA

Techniques

Has Framework Agreement
Yes

Framework Agreement

Type
closed
Method
withAndWithoutReopeningCompetition
Description
Detailed in PQQ / ITT documentation

Expected award period

Ends
24 Nov 2025, 23:59

Communication

Future Notice Date
30 Sept 2025, 23:59

Enquiry period

Ends
25 Sept 2025, 12:00

Special regime

utilities

Submission terms

Electronic Submission Policy
allowed

Languages

en

Lots and requirements

Entry 1
Id
1
Title
HVDC & FACTS
Status
active
Has Renewal
Yes
Description
Expertise for all aspects of HVDC & FACTS devices including but not limited to: (1) System design, (2) Network & system studies, (3) Earthing system design, (4) Station / Equipment layout design, (5) Plant & Equipment design / testing, (6) DC Control & Protection design and settings development, (7) DC Control & Protection system testing using PSCAD and RSCAD/RTDS, (8) AC & DC Control & Protection interfacing and integration, (9) AC Protection & Control scheme designAC Protection & Control setting calculation including short-circuit modelling and calculations, (11) Operator interfaces & SCADA systems, (12) Auxiliary power systems, (13) Secondary mechanical & electrical systems, (14) Commissioning and commissioning management, and (15) Operations & maintenance.

Value

Amount
55,000,000
Currency
GBP
Including VAT
66,000,000

Renewal

Description
2 x 12 months extensions

Suitability

Sme
Yes

Award criteria

Weighting Description
As per PQQ documentation

Criteria

Criterion 1
Name
As per PQQ documentation
Type
quality

Contract period

Ends
9 Dec 2028, 23:59
Starts
10 Dec 2025, 00:00
Max Extent Date
9 Dec 2030, 23:59

Selection criteria

Criteria

Criterion 1
Type
economic
Description
As per PQQ documentation
Criterion 2
Type
technical
Description
As per PQQ documentation
Entry 2
Id
2
Title
Cable Systems
Status
active
Has Renewal
Yes
Description
Expertise for HV Cable Systems: This scope pertains to AC and DC technology, for land and submarine applications. (1) Cable system design (i.e., thermal rating calculations using both analytical and finite element methods, induced voltages / currents, electro-magnetic fields, etc), (2) Cable routing design and risk assessment, (3) Installation design (i.e., pulling tensions, thermo-mechanical & marine engineering calculations), (4) Mechanical protection design, (5) Monitoring & communication fibre optic cable system design, (6) Testing and test witnessing (factory and site), (7) Site and vessel representation for installation activities, (8) Factory audit (quality & technical), (9) Failure investigation and root cause analysis (RCA), (10) Reliability, availability & maintainability analysis, (11) Operations & maintenance strategy and planning, (12) Technical training to Employer’s personnel, (13) Diagnosis, analysis, and interpretation of cable system health & integrity based on monitoring data acquired from field.

Value

Amount
55,000,000
Currency
GBP
Including VAT
66,000,000

Renewal

Description
2 x 12 months extensions

Suitability

Sme
Yes

Award criteria

Weighting Description
As per PQQ documentation

Criteria

Criterion 1
Name
As per PQQ documentation
Type
quality

Contract period

Ends
9 Dec 2028, 23:59
Starts
10 Dec 2025, 00:00
Max Extent Date
9 Dec 2030, 23:59

Selection criteria

Criteria

Criterion 1
Type
economic
Description
As per PQQ documentation
Criterion 2
Type
technical
Description
As per PQQ documentation
Entry 3
Id
3
Title
AC Networks
Status
active
Has Renewal
Yes
Description
Expertise for all aspects of AC Networks including but not limited to: (1) Station design, (2) Earthing system design, (3) Plant & Equipment design / testingProtection & Control scheme design, (5) Protection & Control setting calculation including short-circuit modelling and calculations, (6) Protection & Control system testing, (7) Operator interfaces & SCADA systems, (8) Overhead line design, consenting, and installation, (9) Auxiliary power systems, (10) Secondary mechanical & electrical systems, (11) Commissioning and commissioning management, and (12) Operations & maintenance

Value

Amount
55,000,000
Currency
GBP
Including VAT
66,000,000

Renewal

Description
2 x 12 months extensions

Suitability

Sme
Yes

Award criteria

Weighting Description
As per PQQ documentation

Criteria

Criterion 1
Name
As per PQQ documentation
Type
quality

Contract period

Ends
9 Dec 2028, 23:59
Starts
10 Dec 2025, 00:00
Max Extent Date
9 Dec 2030, 23:59

Selection criteria

Criteria

Criterion 1
Type
economic
Description
As per PQQ documentation
Criterion 2
Type
technical
Description
As per PQQ documentation
Entry 4
Id
4
Title
Offshore and Subsea Services
Status
active
Has Renewal
Yes
Description
Expertise for all aspects of preparation of requirements & specification documents to provide technical direction and governance for design, delivery, operation, maintenance, and decommissioning of offshore substation installations including but not limited to: (1) Site selection and desktop studies for option selection stage, (2) Cable routing design and selection including burial risk assessment (CBRA), (3) Unexploded ordinance (UXO) survey and risk assessment, (4) Cable protection system (CPS) design and analysis, (5) On-bottom stability and free span analysis for subsea cable installation, (6) Burial assessment study (BAS) for subsea cable installation, (7) Design, feasibility and risk assessment for horizontal directional drilling (HDD), (8) Corrosion analysis for subsea cable installation, (9) Loadout, spooling, unspooling of subsea cable systems, (10) Jacket primary & topside secondary structural design, (11) Pile foundation and grouted connection for jacket sleeved piles, (12) Geotechnical ground modelling and interpretation (structures, piles, and subsea cable installation) (13) Metocean interpretation for structural design jacket & topside, (14) Fabrication, transportation, and installation studies (HLV & float over options), (15) Material, fabrication, corrosion, & protection design for topside and substructure, (16) LV electrical design for ducting, cable routing and cable cabinets, interfacing with topside structural design (17)Lifecycle and condition monitoring for jacket primary and secondary topside structures, (18) Operations and maintenance requirements for complete offshore substation asset, (19) Design risk management, from concept design through to decommissioning, (20) Decommissioning, and (21) Design verification and certification support

Value

Amount
55,000,000
Currency
GBP
Including VAT
66,000,000

Renewal

Description
2 x 12 months extensions

Suitability

Sme
Yes

Award criteria

Weighting Description
As per PQQ documentation

Criteria

Criterion 1
Name
As per PQQ documentation
Type
quality

Contract period

Ends
9 Dec 2028, 23:59
Starts
10 Dec 2025, 00:00
Max Extent Date
9 Dec 2030, 23:59

Selection criteria

Criteria

Criterion 1
Type
economic
Description
As per PQQ documentation
Criterion 2
Type
technical
Description
As per PQQ documentation

Items and delivery

Item 1
Id
1
Related Lot
1

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom
Entry 5
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71300000
Scheme
CPV
Description
Engineering services
Entry 2
Id
71320000
Scheme
CPV
Description
Engineering design services
Entry 3
Id
71356000
Scheme
CPV
Description
Technical services
Item 2
Id
2
Related Lot
2

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71300000
Scheme
CPV
Description
Engineering services
Entry 2
Id
71320000
Scheme
CPV
Description
Engineering design services
Entry 3
Id
71356000
Scheme
CPV
Description
Technical services
Item 3
Id
3
Related Lot
3

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71300000
Scheme
CPV
Description
Engineering services
Entry 2
Id
71320000
Scheme
CPV
Description
Engineering design services
Entry 3
Id
71356000
Scheme
CPV
Description
Technical services
Item 4
Id
4
Related Lot
4

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom
Entry 2
Region
UK
Country
GB
Country Name
United Kingdom
Entry 3
Region
UK
Country
GB
Country Name
United Kingdom
Entry 4
Region
UK
Country
GB
Country Name
United Kingdom

Additional Classifications

Entry 1
Id
71300000
Scheme
CPV
Description
Engineering services
Entry 2
Id
71320000
Scheme
CPV
Description
Engineering design services
Entry 3
Id
71356000
Scheme
CPV
Description
Technical services

Published documents

Entry 1
Id
conflictOfInterest
Description
Not published
Document Type
conflictOfInterest
Entry 2
Id
051536-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
27 Aug 2025, 11:38
Entry 3
Id
051616-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
27 Aug 2025, 14:11
Entry 4
Id
051623-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
27 Aug 2025, 14:24
Entry 5
Id
058412-2025
Format
text/html
Notice Type
UK4
Description
Tender notice on Find a Tender
Document Type
tenderNotice
Published
22 Sept 2025, 11:16

Planning and budget

Documents

Entry 1
Id
038970-2025
Format
text/html
Notice Type
UK1
Description
Pipeline notice on Find a Tender
Document Type
plannedProcurementNotice
Published
10 Jul 2025, 14:09

Buyer, suppliers and contacts

Organisation 1
Id
GB-COH-SC213461
Name
SCOTTISH HYDRO ELECTRIC TRANSMISSION PLC

Roles

buyer

Address

Region
UKM77
Country
GB
Locality
Perth
Postal Code
PH1 3AQ
Country Name
United Kingdom
Street Address
Inveralmond House, 200 Dunkeld Road

Details

Classifications

Entry 1
Id
privateUtility
Scheme
UK_CA_TYPE
Description
Private utility

Identifier

Id
SC213461
Scheme
GB-COH

Contact

Name
Janis Hepburn

Recorded locations

  • Buyer location · Perth · UKM77 · PH1 3AQ · United Kingdom
  • Delivery location · UK · United Kingdom

Notice and amendment history

1 published notice version reviewed by ProcuraAxis.

1 VERSION
  1. ocds-h6vhtk-055cfb-2025-09-22T11:16:21+01:00Pipeline notice on Find a Tender ·