---
title: "FW Supply and Install - Primary Transformers - Multi Site 0338"
ocid: "ocds-h6vhtk-06cbac"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06cbac"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06cbac.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06cbac.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "SCOTTISH HYDRO ELECTRIC POWER DISTRIBUTION PLC"
published: "2026-07-15"
---

# FW Supply and Install - Primary Transformers - Multi Site 0338

Buyer: SCOTTISH HYDRO ELECTRIC POWER DISTRIBUTION PLC  
Current stage: Tender  
OCID: ocds-h6vhtk-06cbac

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## Summary

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.

## Notice

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.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/066628-2026 |
| 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 |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 15 Jul 2026 |
| Submission deadline | 10 Aug 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 31 Mar 2028 - 31 Mar 2038 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £510,585,000 |
| Lots value | £510,585,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SCOTTISH HYDRO ELECTRIC POWER DISTRIBUTION PLC |
| Additional buyers | SOUTHERN ELECTRIC POWER DISTRIBUTION PLC |
| Locality | PERTH |
| Post town | Perth |
| Postcode | PH1 3AQ |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 | TLJ16 Berkshire West |
| Local authority | Reading |
| Electoral ward | Thames |
| Westminster constituency | Reading Central |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 45 - Construction work
- 51 - Installation services (except software)

### Codes

- 31170000 - Transformers
- 31174000 - Power supply transformers
- 45232221 - Transformer substation
- 51111300 - Installation services of transformers

## Release History

- 15 Jul 2026 at 09:49 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/066628-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/066628-2026
  15th July 2026 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-19114
  Service Information
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-19115
  Procurement Document
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-19116
  PQQ Toolbox

## Notice URLs

- http://www.ssen.co.uk
- https://sse.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=448
- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://www.sse.com/potential-suppliers

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06cbac. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06cbac.json.