Planning

Eastern Green Link 4 AC Digital Models Study

SCOTTISH POWER UK PLC

This public procurement record has 1 release in its history.

Planning

26 Mar 2026 at 13:14

UK3 - Planned Procurement Notice
Summary of the contracting process

Scottish Power UK PLC is the buying organisation for the upcoming Eastern Green Link 4 AC Digital Models Study, situated in Glasgow, United Kingdom. As a key player in the private utility sector, Scottish Power intends to appoint a Study Contractor to develop AC network models and test an HVDC Link control system. This procurement process is currently in the planning stage, following an open procedure method, with key events occurring between March 2026 and June 2026. The planned contract will start in November 2026 and run until March 2031, encompassing advisory services within the feasibility study and analysis category. Interested parties should note the deadline for tender submissions by 11th June 2026, conducted via the iBuy procurement platform.

Offering substantial opportunities for businesses specialising in network modelling, digital systems, and utility services, this tender is particularly well-suited for firms with robust technical capabilities and experience in feasibility studies, advisory services, and system analysis. Businesses focusing on digital model development and those equipped to collaborate on HVDC systems are encouraged to apply, as the project requires integration and testing of intricate control mechanisms. Achieving selection following satisfactory pre-qualification evaluations will enable companies to contribute to significant infrastructure development, potentially leading to long-term growth in the utilities sector.

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Notice Information

Notice Title

Eastern Green Link 4 AC Digital Models Study

Notice Description

the Employer is looking to appoint a Study Contractor. The Study Contractor will in a First Stage, develop the AC network models, and in a Second Stage, will work with an HVDC Contractor to test the EGL4 HVDC Link control system. Below is a brief description of the scope. In the First Stage, the Employer will provide the Study Contractor with AC network model information in DIgSILENT PowerFactory and PSCAD software. By March 2028, the Study Contractor shall: * Perform multi-infeed interaction factor (MIIF) and unit interaction factor (UIF) studies, identify the AC network nodes remote from the EGL4 converter stations which can be reduced to network equivalents, and prepare PowerFactory and PSCAD models of AC network as viewed from the EGL4 converter stations. * Replace confidential AC network plant models in PowerFactory and PSCAD networks with generic plant models. The generic plant models shall be designed and parameterised to replicate the confidential plant model performance, and this will be evidenced by a validation report for the approval of both the Employer and the HVDC Contractor. * Be responsible for obtaining the Non-Disclosure Agreements where required from third-party plant owners. The HVDC Contractor will design and develop the EGL4 HVDC Link specific models, based on the AC network models containing equivalenced plant models received from the Study Contractor. The HVDC Contractor will then share the EGL4 HVDC Link specific models with the Study Contractor. In the Second Stage, the Study Contractor shall: * Test the EGL4 HVDC Link specific models after integrating them into the PowerFactory and PSCAD network models developed in the First Stage. * Work with the HVDC Contractor to resolve any further issues related to dynamic performance and tuning of the EGL4 HVDC Link control system.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06751c
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/027919-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK3 - Planned Procurement Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Open procedure
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services

CPV Codes

71241000 - Feasibility study, advisory service, analysis

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
26 Mar 20261 weeks ago
Submission Deadline
11 Jun 20263 months to go
Future Notice Date
5 May 20262 months to go
Award Date
Not specified
Contract Period
1 Nov 2026 - 1 Mar 2031 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Planned
Lots Status
Planned
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SCOTTISH POWER UK PLC
Additional Buyers

NATIONAL GRID ELECTRICITY TRANSMISSION PLC

Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
GLASGOW
Postcode
G2 5AD
Post Town
Glasgow
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
Not specified
Local Authority
Westminster
Electoral Ward
St James's
Westminster Constituency
Cities of London and Westminster

Further Information

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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