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AFPS Upgrade

UK Atomic Energy Authority

This public procurement record has 1 release in its history.

Planning

14 Aug 2026 at 12:02

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

The UK Atomic Energy Authority is planning to expand and potentially fully upgrade its Auxiliary Field Power Supplies at its Culham Science Centre site in Oxfordshire. The existing installation consists of two modular, single-quadrant Regatron rectifiers in separate cubicles, each built from four Regatron LAB.TC modules. Each sub-module has a 415V, three-phase, 60A input and 32kW output. The requirement is for power-converter goods, potentially involving newer modular supplies and additional capacity. Two technical approaches are under consideration: upgrading to newer modular supplies while expanding from two to four supplies, or adding two different modern supplies and upgrading the system incrementally over a longer period. The authority is engaging the market before finalising the procurement.

This procurement is at the planning stage and is not yet an invitation to tender. The UK Atomic Energy Authority expects to use an open procedure for a goods contract, with one lot and an estimated value of £280,000 excluding VAT, or £336,000 including VAT. The anticipated contract period is 15 January 2027 to 15 July 2027. The authority plans to publish a future notice on 15 October 2026, subject to its planning. It has scheduled preliminary market engagement, including a webinar, with registration expected by 8 September 2026. The engagement is intended to inform the eventual specification and procurement approach. The requirement is above the relevant threshold, and the authority has identified the procurement as suitable for small and medium-sized enterprises.

This planned requirement should suit manufacturers and specialist suppliers of industrial power-conversion equipment, modular rectifiers and high-power electrical supply systems. Relevant firms are likely to need experience designing, supplying, integrating or upgrading modular power supplies in technically controlled environments. Useful preparation would include understanding the performance of Regatron LAB.TC systems, 415V three-phase inputs, 60A operating conditions and 32kW sub-module outputs, together with the challenges of expanding an existing installation without disrupting future upgrade paths. Suppliers able to offer either a complete replacement and expansion to four supplies, or a staged expansion using different modern supplies, should follow the market engagement. Smaller specialist engineering businesses are explicitly considered suitable, including those able to work with larger partners where necessary.

How relevant is this notice?

Notice Information

Notice Title

AFPS Upgrade

Notice Description

The United Kingdom Atomic Energy Authority has a requirement to expand our Auxiliary Field Power Supplies with the possibility of a full upgrade and expansion. The existing system comprises of: Two modular (x4 Regatron LAB.TC modules each) single-quadrant Regatron rectifiers in two separate cubicles.415V, 3 x 60A input and 32kW output from each sub-module. Options under consideration are upgrading the system to newer modular supplies and expanding from two to four supplies OR the expansion of the system to include two different more modern supplies with the intention to upgrade incrementally over a longer period. The UKAEA seeks market engagement to help inform the process prior to tender.

Planning Information

https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=108235&TID=100113301&B= Webinar registration form in Pre Market Engagement document.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06e489
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/077635-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Standard
Procurement Category
Goods
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

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

CPV Codes

31121110 - Power converters

Notice Value(s)

Tender Value
£280,000 £100K-£500K
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
14 Aug 20261 weeks ago
Submission Deadline
Not specified
Future Notice Date
15 Oct 20262 months to go
Award Date
Not specified
Contract Period
15 Jan 2027 - 15 Jul 2027 6-12 months
Recurrence
Not specified

Notice Status

Tender Status
Planning
Lots Status
Planning
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
UK Atomic Energy Authority
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
OXFORDSHIRE
Postcode
OX14 3DB
Postcode Area
Oxford
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ1 Berkshire, Buckinghamshire and Oxfordshire
Small Region (ITL 3)
TLJ14 Oxfordshire CC
Delivery Location
TLJ14 Oxfordshire CC
Local Authority
South Oxfordshire
Electoral Ward
Sandford & the Wittenhams
Westminster Constituency
Didcot and Wantage

Further Information

Notice Documents

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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