---
title: "NNL Central Laboratory Replacement Chiller"
ocid: "ocds-h6vhtk-03ef2a"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-03ef2a"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-03ef2a.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-03ef2a.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NATIONAL NUCLEAR LABORATORY"
published: "2025-05-27"
---

# NNL Central Laboratory Replacement Chiller

Buyer: NATIONAL NUCLEAR LABORATORY  
Current stage: Award  
OCID: ocds-h6vhtk-03ef2a

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## Summary

The procurement process involved with the National Nuclear Laboratory, based in Warrington, UK, pertains to the procurement of a replacement chiller for the NNL Central Laboratory located on the Sellafield Nuclear Site in West Cumbria. The procurement falls under the industry category of cooling and ventilation equipment, and the procurement method used was an open procedure. The most recent stage of this process is the award stage, with the contract having been awarded on 27th May 2025 to Johnson Controls Building Efficiency UK Limited for a total value of GBP 600,000. The procurement was part of a tender initially activated in August 2023, with the tender period concluding on 15th September 2023.

This tender represents a significant opportunity for businesses specialising in the supply and installation of HVAC systems and related equipment, aiming for growth within the nuclear sector. The contract was awarded based on both technical merit and pricing, making it suitable for companies that excel in providing high-quality, innovative cooling solutions for complex environments, such as nuclear laboratories. The involvement of a known entity like Johnson Controls illustrates the competitive nature of such tenders, and businesses of a similar scale and capability would be well-placed to compete in future opportunities with the National Nuclear Laboratory or other public bodies looking for competent suppliers in this field. Small to medium enterprises or those from the EU did not submit bids, suggesting a niche yet scalable opportunity for larger organisations specialising in this domain.

## Notice

This specification is for the supply, installation and setting to work of a replacement for the aircooled process water chiller located outside in the NNL Central Laboratory (B170) south compound,on Sellafield Nuclear Site in West Cumbria.

### Lot Information

Lot 1

This specification is for the supply, installation and setting to work of a replacement for the aircooled process water chiller located outside in the NNL Central Laboratory (B170) south compound,on Sellafield Nuclear Site in West Cumbria.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/027822-2025 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 May 2025 |
| Submission deadline | 15 Sep 2023 |
| Future notice date | Not specified |
| Award date | 26 May 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £250,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £600,000 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATIONAL NUCLEAR LABORATORY |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6AE |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | JOHNSON CONTROLS BUILDING EFFICIENCY |

## CPV Codes

### Divisions

- 42 - Industrial machinery
- 45 - Construction work

### Codes

- 42500000 - Cooling and ventilation equipment
- 42510000 - Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery
- 42512300 - HVAC packages
- 42520000 - Ventilation equipment
- 45331200 - Ventilation and air-conditioning installation work

## Release History

- 27 May 2025 at 14:47 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/027822-2025
- 11 Aug 2023 at 14:06 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/023603-2023

## Notice URLs

- https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=71575&B=NNL
- https://uk.eu-supply.com/ctm/Company/CompanyInformation/Index/124934
- https://www.nnl.co.uk
- https://www.nnl.co.uk/

## 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-03ef2a. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-03ef2a.json.