---
title: "D15 Project Feasibility Study"
ocid: "ocds-h6vhtk-05e49d"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e49d"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05e49d.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05e49d.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "UK ATOMIC ENERGY AUTHORITY"
published: "2025-11-19"
---

# D15 Project Feasibility Study

Buyer: UK ATOMIC ENERGY AUTHORITY  
Current stage: Award  
OCID: ocds-h6vhtk-05e49d

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05e49d)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-05e49d.json)

## Summary

The UK Atomic Energy Authority, based in Oxfordshire, has recently completed the procurement process for the D15 Project Feasibility Study. This initiative falls under the services category and pertains to a feasibility assessment for upgrading J52 power supplies for the MAST-U D15 project. The procurement followed a direct method below the threshold, without competition, and was awarded to the supplier JEMA. Key dates include the signing of the contract on 13th November 2025, with the contract period running from 18th November 2025 to 6th January 2026. The procurement process is now in the award stage, and the status of the awarded contract is active.

This tender presents significant opportunities for businesses specialising in technical and feasibility studies within the energy sector, particularly those focusing on power supply optimisation and repurposing of existing infrastructure. Businesses adept at handling similar scale projects, especially those qualified as small to medium enterprises (SMEs), would find compatible growth opportunities in leveraging their expertise to participate in future or similar procurements undertaken by large entities such as the UK Atomic Energy Authority. The study's outcomes could pave the way for subsequent project phases or related contracts, fostering ongoing engagement and business development.

## Notice

The required works are for a feasibility study into an upgrade of the J52 power supplies, supplied and commissioned by JEMA, which will be repurposed for the MAST-U D15 project. The study will determine the technical and practical requirements for optimising the power supplies to operate within MAST-U parameters. This activity is required to confirm that the proposed modifications are technically feasible, to ensure that the modifications meet the performance requirements of the MAST-U PINIs and to define the specific modifications necessary to achieve the desired upgrade.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/075329-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 Nov 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 13 Nov 2025 |
| Contract period | 18 Nov 2025 - 6 Jan 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £40,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UK ATOMIC ENERGY AUTHORITY |
| 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 | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | JEMA |

## CPV Codes

### Divisions

- 79 - Business services: law, marketing, consulting, recruitment, printing and security

### Codes

- 79314000 - Feasibility study

## Release History

- 19 Nov 2025 at 15:25 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/075329-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/075329-2025
  19th November 2025 - Contract details notice on Find a Tender

## Notice URLs

- 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-05e49d. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05e49d.json.