Summary
- OCID:
- ocds-h6vhtk-05d5ac
- Published by:
- UK ATOMIC ENERGY AUTHORITY
- Authority ID:
- AA83572
- Publication date:
- 29 October 2025
- Deadline date:
- 11 November 2025
- Notice type:
- UK2
- Has documents:
- No
- Has SPD:
- No
- Has Carbon Reduction Plan:
- N/A
Abstract
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.
Full notice text
Scope
Procurement reference
T/RAF119/25
Procurement description
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.
Additional categories
Works
Total value (estimated)
450000 GBP Excluding VAT
540000 GBP Including VAT
Contract dates (estimated)
01 February 2026, 00:00AM to 27 March 2026, 23:59PM
Extension end date (if all the extensions are used): 26 March 2027
Contracting authority
UK Atomic Energy Authority
Procedure
Is the total value above threshold?
Above threshold
Lots
Divided into 1 lots
Lot number: LOT-0000 CPV classifications
- 31210000 - Electrical apparatus for switching or protecting electrical circuits
- 31000000 - Electrical machinery, apparatus, equipment and consumables; lighting
- 45311200 - Electrical fitting work
- 45317300 - Electrical installation work of electrical distribution apparatus
Sustainability
Small and medium-sized enterprises (SME)
Contract start date (estimated)
01 February 2026, 00:00AM
Contract end date (estimated)
27 March 2026, 23:59PM
Extension end date (estimated)
26 March 2027, 23:59PM
Can the contract be extended?
Yes
Engagement
Engagement process description
https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=99488&B=
Due date
11 November 2025, 23:59PM
Has the engagement period already ended?
No
Submission
Publication date of tender notice (estimated)
21 November 2025
Coding
Commodity categories
| ID |
Title
|
Parent category
|
| 31210000 |
Electrical apparatus for switching or protecting electrical circuits |
Electricity distribution and control apparatus |
| 45311200 |
Electrical fitting work |
Electrical wiring and fitting work |
| 45317300 |
Electrical installation work of electrical distribution apparatus |
Other electrical installation work |
| 31000000 |
Electrical machinery, apparatus, equipment and consumables; lighting |
Technology and Equipment |
Delivery locations
| ID |
Description
|
|
There are no delivery locations for this notice.
|
Alert region restrictions
The buyer has restricted the alert for this notice to suppliers based in the following regions.
| ID |
Description
|
|
There are no alert restrictions for this notice.
|
About the buyer
- Main contact:
- N/a
- Admin contact:
- N/a
- Technical contact:
- N/a
- Other contact:
- N/a
Further information
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Date
|
Details
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No further information has been uploaded.
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