This public procurement record has 1 release in its history.

Tender

15 Jul 2026 at 09:49

Summary of the contracting process

Scottish Hydro Electric Power Distribution PLC, alongside Southern Electric Power Distribution PLC, is in the tender stage for a significant procurement titled "FW Supply and Install - Primary Transformers - Multi Site 0338." This project involves establishing a multi-supplier framework agreement focused on the supply, installation, and commissioning of medium power oil-immersed three-phase primary transformers across various UK sites. The procurement is listed under the works category within the utilities industry and employs a selective procurement method known as the competitive flexible procedure. Key dates include an expression of interest deadline on 17 August 2026, with the contract award period concluding on 31 March 2027. The process is conducted through the Jaggaer platform, where all relevant details and submission requirements can be found.

This tender represents a substantial opportunity for businesses specialising in transformer manufacturing, electrical engineering services, and related industries. Companies capable of delivering high-quality transformer and installation services, particularly those familiar with scalable and modular design approaches, would be well-suited to compete. The framework, valued at approximately £510.585 million, seeks between 3 to 5 suppliers, offering significant potential for business growth. Collaborative partners will be integral in supporting SSEN's long-term network investments, especially in the strategic regions of northern Scotland and southern central England.

How relevant is this notice?

Notice Title

FW Supply and Install - Primary Transformers - Multi Site 0338

Notice Description

Scottish Hydro Electric Power Distribution plc and Southern Electric Power Distribution plc (SSEN) intends to establish a multi-supplier Framework Agreement for the supply, delivery to site, off-loading onto prepared foundations, installation, preparation for service and commissioning of medium power oil immersed three-phase double-wound primary transformers. The transformers will operate at primary voltages of 33kV, 22kV and 11kV, with power ratings ranging from approximately 1.5MVA to 20/40MVA. Each transformer shall be designed to operate as part of a parallel supply scheme and be capable of carrying full rated load continuously in the event of the loss of a partner transformer. Transformers shall also be capable of operating under reverse power flow conditions. The scope includes all associated equipment required to provide a fully operational installation, including, but not limited to: Cooling systems Tap changers Control and monitoring equipment Transformer protection interfaces Initial oil fill Installation and commissioning services As part of the procurement, SSEN intends to adopt a standardised and modular transformer design philosophy to support a "design once, build many" approach. The objective is to reduce design variation, improve manufacturing efficiency, enhance security of supply and support long-term network investment requirements.

Lot Information

Lot 1

Renewal: The initial Framework term will be used until 31st March 2038 with the option of 2 x 1 year extension terms.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06cbac
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/066628-2026
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Framework
Procurement Category
Works
Procurement Method
Selective
Procurement Method Details
Competitive flexible procedure
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

31 - Electrical machinery, apparatus, equipment and consumables; lighting

45 - Construction work

51 - Installation services (except software)


CPV Codes

31170000 - Transformers

31174000 - Power supply transformers

45232221 - Transformer substation

51111300 - Installation services of transformers

Notice Value(s)

Tender Value
£510,585,000 £100M-£1B
Lots Value
£510,585,000 £100M-£1B
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
15 Jul 2026Today
Submission Deadline
10 Aug 20264 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
31 Mar 2028 - 31 Mar 2038 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Contracting Authority (Buyer)

Main Buyer
SCOTTISH HYDRO ELECTRIC POWER DISTRIBUTION PLC
Additional Buyers

SOUTHERN ELECTRIC POWER DISTRIBUTION 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
PERTH
Postcode
PH1 3AQ
Post Town
Perth
Country
England

Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ1 Berkshire, Buckinghamshire and Oxfordshire
Small Region (ITL 3)
TLJ16 Berkshire West
Delivery Location
Not specified

Local Authority
Reading
Electoral Ward
Thames
Westminster Constituency
Reading Central

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

JSON Markdown

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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