---
title: "Supply and Install of 415V AC Distribution, Metering and Inter-Trip Panels"
ocid: "ocds-h6vhtk-05d5ac"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d5ac"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d5ac.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d5ac.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "UK ATOMIC ENERGY AUTHORITY"
published: "2026-05-21"
---

# Supply and Install of 415V AC Distribution, Metering and Inter-Trip Panels

Buyer: UK ATOMIC ENERGY AUTHORITY  
Current stage: Tender  
OCID: ocds-h6vhtk-05d5ac

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## Summary

The UK Atomic Energy Authority, a central government public authority based in Oxfordshire, initiated a tender for the supply and installation of 415V AC distribution, metering, and inter-trip panels at their Culham Science Centre. This procurement process, which was initially in the planning stage as of 28th October 2025, ultimately faced cancellation by 21st May 2026. The tender involved the design, manufacture, and commissioning of new electrical distribution systems to support an upgrade of their substation facilities. The procurement was classified under the goods category, focusing on electrical apparatus and fitting work, with an estimated value of £540,000. The opportunity would have been suitable for small and medium enterprises, with arrangements for a contract period beginning in February 2026 and potential renewals until March 2027.

This project offered significant opportunities for businesses specialising in electrical apparatus and installation work, particularly those experienced with high-voltage power systems and integration with advanced SCADA systems. Companies equipped to handle large-scale electrical upgrades and committed to delivering high technical compliance would have been well-suited to compete. Despite the cancellation, the market engagement notice from 2025 had already set a pathway for businesses to understand requirements and align their capabilities in anticipation, indicating robust opportunities for future tenders of a similar nature by the UK Atomic Energy Authority.

## Notice

The UK Atomic Energy Authority's main HV Pulsed Power supply to the Culham site is via a dedicated overhead line fed directly from the National Grid at 400kV, transformed down to 33kV. The main distribution substation for this supply is J5 substation, located at the north end of Culham Campus. The substation is undergoing a significant upgrade in 2026. The scope is for part of that upgrade. It covers the design, manufacture, delivery, installation, and commissioning of: * A replacement 415V AC Distribution Board, * 3 replacement auxiliary supply cubicles including isolation transformers, * A new 400/33 kV inter-trip panel to transfer trip signals between the 400 kV and 33 kV substations, and * A new 400 kV revenue metering panel capable of metering the 400 kV supply for each of the three Super-Grid Transformers (SGTs). All of the above must be capable of integration with a new IEC 61850 SCADA system.

### Planning Information

https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=99488&B=

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/046959-2026 |
| Notice type | UK12 - Procurement Termination Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning, Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 21 May 2026 |
| Submission deadline | Not specified |
| Future notice date | 21 Nov 2025 |
| Award date | Not specified |
| Contract period | 1 Feb 2026 - 27 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £450,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Withdrawn |
| Lots status | Withdrawn |
| Awards status | Cancelled |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UK ATOMIC ENERGY AUTHORITY |
| Additional buyers | Missing |
| Locality | OXFORDSHIRE |
| Post town | Oxford |
| Postcode | OX14 3DB |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 | TLJ14 Oxfordshire CC |
| Local authority | South Oxfordshire |
| Electoral ward | Sandford & the Wittenhams |
| Westminster constituency | Didcot and Wantage |
| Delivery location | TLJ14 Oxfordshire CC |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 45 - Construction work

### Codes

- 31000000 - Electrical machinery, apparatus, equipment and consumables; lighting
- 31210000 - Electrical apparatus for switching or protecting electrical circuits
- 45311200 - Electrical fitting work
- 45317300 - Electrical installation work of electrical distribution apparatus

## Release History

- 21 May 2026 at 10:42 - TenderCancellation - UK12 - Procurement Termination Notice - https://www.find-tender.service.gov.uk/Notice/046959-2026
- 28 Oct 2025 at 16:52 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/069137-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/046959-2026
  21st May 2026 - Procurement termination notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/069137-2025
  28th October 2025 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=99488&B=
- https://www.gov.uk/government/organisations/uk-atomic-energy-authority
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-05d5ac. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d5ac.json.