---
title: "STEP P&T - High Heat Flux Testing and Verification Facility"
ocid: "ocds-h6vhtk-055ed8"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-055ed8"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-055ed8.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-055ed8.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "UK INDUSTRIAL FUSION SOLUTIONS LTD"
published: "2025-12-05"
---

# STEP P&T - High Heat Flux Testing and Verification Facility

Buyer: UK INDUSTRIAL FUSION SOLUTIONS LTD  
Current stage: Award  
OCID: ocds-h6vhtk-055ed8

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## Summary

The public procurement process initiated by UK Industrial Fusion Solutions Ltd, based in Abingdon, Oxfordshire, entails the completion of a project titled "STEP P&T – High Heat Flux Testing and Verification Facility." This tender was managed through a direct award procurement method and classified under the services category. The process, which is now at the contract stage, was awarded to ICS Cool Energy Limited, located in Southampton. Key dates include the signing of the contract on 5th December 2025, with the project beginning on 8th December 2025 and concluding by 31st March 2026. The project encompasses the installation and commissioning of a cooling system critical for high heat flux testing, with the location for the services being within the UK.

This tender presents a significant business opportunity, particularly for companies involved in the design and provision of heat-exchange units, air-conditioning, refrigerating equipment, and related engineering services. Businesses that specialise in installation, commissioning, and research and development will find this project well-aligned with their expertise. The collaboration with ICS Cool Energy, who have a history of working with UK Industrial Fusion Solutions, illustrates the potential for long-term partnerships and further opportunities in maintaining and developing similar technological solutions. Moreover, the direct procurement approach underscores the value of existing relationships and the importance of tailoring service offerings to specific technical requirements, thereby creating strategic growth prospects through tailored innovations.

## Notice

An integrated system that will provide cooling for the high heat flux testing for the STEP in-vessel components, as well as cooling the auxiliary systems required for operation, as part of the High Heat Flux Testing and Verification Facility. This system will include: Temperature Control Unit (226 kW cooling capacity, 150 kW heating capacity and a maximum operating temperature of 350degC) Chiller (350 kW cooling capacity) Design of the Temperature Control Unit and Chiller System, along with all necessary components for operation. Commissioning of the system. Installation of the system. This system is very similar to the operational HIVE test rig which has used this supplier for the last seven years and shares the same fundamental design concept, many similar components, the cooling system and operational principles. These specific nuances are currently only understood by ICS Cool Energy. This project is an extension of the organisation's Induction-heating based HHF testing programme and there is a stakeholder requirement to ensure equipment is directly comparable, and compatible to the HIVE facility, including physical interfaces, control, and data acquisition (see approved TD-0012050-A: SHR-010, SHR-011, SHR-013). As a result another supplier would have to retrofit the HIVE test to match the proposed HHFTVF facility increasing the cost beyond what we have been quoted. The absence of this system poses a significant technical risk to the project, as it will result in certain key stakeholder requirements falling out of scope and lead to a diminished operational capability, such as the inability to accurately replicate the first wall environment as well as future use cases. (see approved TD-0012050-A: SHR-008, SHR-009, SHR-016) To view this notice, please click here: https://ukifs.delta-esourcing.com/delta/viewNotice.html?noticeId=997133124

### Procurement Information

This project is an extension of the organisation's induction heating-based HHF testing program, with a stakeholder requirement to ensure that the equipment is directly comparable and compatible with the HIVE facility which has utilised a very similar cooling system from this supplier for the last seven years. This includes physical interfaces, control systems, and data acquisition (see approved TD-0012050-A: SHR-013). Our facility needs a distinctive combination of components, most of which are commercial off-the-shelf and suitable for their intended purpose. However, addressing our specific requirements requires a deeper understanding of our needs. The proposed supplier has extensive experience with the HIVE facility, making them uniquely qualified to provide post-purchase support as an extension of their current HIVE services. Using the same supplier allows for consolidation of maintenance contracts which in turn will lead to cost savings through economies of scale, streamlined administrative processes, and improved response times, ultimately enhancing budget predictability and reducing overall operational expenses. The team responsible for operating HIVE will also manage HHFTVF. Utilizing equipment from the same manufacturer will mitigate the inherent risks associated with operating new machinery and reduce the costs associated with training staff to operate and troubleshoot a new test rig. ICS Cool Energy is the best positioned supplier to fully satisfies specific requirements for the temperature control unit, including heating power, cooling power, and operational temperature. (see TCU & Chiller Market Research Document)

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/080201-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Direct award |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 5 Dec 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 14 Jul 2025 |
| Contract period | 8 Dec 2025 - 31 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £293,959 |
| Contracts value | £293,959 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UK INDUSTRIAL FUSION SOLUTIONS LTD |
| Locality | ABINGDON |
| 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 | ICS COOL ENERGY |

## CPV Codes

### Divisions

- 42 - Industrial machinery
- 45 - Construction work
- 50 - Repair and maintenance services
- 51 - Installation services (except software)
- 71 - Architectural, construction, engineering and inspection services
- 73 - Research and development services and related consultancy services

### Codes

- 42510000 - Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery
- 45331230 - Installation work of cooling equipment
- 50721000 - Commissioning of heating installations
- 51100000 - Installation services of electrical and mechanical equipment
- 71321000 - Engineering design services for mechanical and electrical installations for buildings
- 73100000 - Research and experimental development services
- 73430000 - Test and evaluation

## Release History

- 5 Dec 2025 at 14:05 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/080201-2025
- 16 Oct 2025 at 18:05 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/066094-2025
- 14 Jul 2025 at 15:05 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/039725-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/080201-2025
  5th December 2025 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/066094-2025
  16th October 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/039725-2025
  14th July 2025 - Transparency notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-8771

## Notice URLs

- https://ukifs.delta-esourcing.com/delta/viewNotice.html?noticeId=997133124
- 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-055ed8. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-055ed8.json.