---
title: "Provision of Operation, Maintenance & Management CHPP & Boiler Park"
ocid: "ocds-b5fd17-ebdf28a5-3a9f-4e9d-9480-a780f54caee0"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-ebdf28a5-3a9f-4e9d-9480-a780f54caee0"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-ebdf28a5-3a9f-4e9d-9480-a780f54caee0.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-ebdf28a5-3a9f-4e9d-9480-a780f54caee0.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "SELLAFIELD LIMITED"
published: "2025-12-23"
---

# Provision of Operation, Maintenance & Management CHPP & Boiler Park

Buyer: SELLAFIELD LIMITED  
Current stage: Award  
OCID: ocds-b5fd17-ebdf28a5-3a9f-4e9d-9480-a780f54caee0

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## Summary

Sellafield Limited has entered the award stage for a contract focused on the "Provision of Operation, Maintenance & Management CHPP & Boiler Park". The procurement involves managing the Combined Heat and Power Plant and Boiler Park located at the Sellafield nuclear site in North West England, aimed at maintaining a safe and continuous supply of steam crucial for the site's operations. This strategic contract was awarded to Equans E&S Solutions Limited and covers a duration of up to eight years, beginning on 3rd December 2025, with an estimated total value of £128 million. The procurement process adopted was a limited negotiation procedure without prior publication, reflecting the specific requirements and scale of the project within the energy services sector.

Businesses with expertise in gas turbines, steam generators, power plant operations, and energy efficiency consultancy services will find significant growth opportunities in this contract. Large-scale service providers capable of handling comprehensive decommissioning and precision maintenance services are ideally positioned to benefit. This contract not only ensures high levels of operational availability at Sellafield but also supports sustainable and secure site stewardship, aligning with the Nuclear Decommissioning Authority's outcomes. Companies that specialise in energy services and infrastructure management in the nuclear industry, particularly those familiar with UK nuclear site licence conditions, will find this project aligns with their capabilities and strategic interests.

## Notice

The purpose of Sellafield Ltd. is to create a clean and safe environment for future generations. Sellafield Ltd. commits to safe, secure, sustainable, site stewardship enabled by the management of a smart, agile, and resilient site. 'Fellside' comprises the Combined Heat and Power Plant (CHPP) and Fellside Boiler Park (FBP); its purpose is to provide a continuous, safe supply of process and welfare steam to the Sellafield nuclear site. Steam has an associated nuclear safety case (in compliance with Nuclear Site Licence Conditions). Fellside is therefore a critical enabler to the achievement of Sellafield Ltd's mission and towards the Nuclear Decommissioning Authority's (NDA) strategic outcomes. Sellafield Ltd has engaged with Equans E&S Solutions Limited as a suitable Operations, Maintenance and Management partner to ensure continued safe operations of the Fellside site while delivering high levels of availability of both process and welfare steam for the Sellafield site. This agreement is the Operations, Maintenance & Management Agreement (OM&M Agreement). The duration of the contract is for an initial term of six years with an option to extend the agreement by up to two further years. The estimated value of the 8-year contract is PS128M. The contract commenced on 03/12/2025.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/ea194fc8-0eac-4300-a9ff-4242e7ee236c |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Limited |
| Procurement method details | Negotiated procedure without prior publication (above threshold) |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 23 Dec 2025 |
| Submission deadline | 28 Feb 2025 |
| Future notice date | Not specified |
| Award date | 3 Dec 2025 |
| Contract period | 3 Dec 2025 - 2 Dec 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £128,000,000 |
| Lots value | Not specified |
| Awards value | £128,000,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SELLAFIELD LIMITED |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6GR |
| 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 | TLD North West (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | EQUANS E&S SOLUTIONS |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 42 - Industrial machinery
- 50 - Repair and maintenance services
- 65 - Public utilities
- 71 - Architectural, construction, engineering and inspection services
- 98 - Other community, social and personal services

### Codes

- 31124000 - Steam-turbine generator and related apparatus
- 42112100 - Steam turbines
- 42112300 - Gas turbines
- 42113100 - Parts of steam turbines
- 42160000 - Boiler installations
- 42162000 - Steam-generating boilers
- 42163000 - Steam generators
- 42164000 - Auxiliary plant for use with boilers
- 50430000 - Repair and maintenance services of precision equipment
- 65410000 - Operation of a power plant
- 71314300 - Energy-efficiency consultancy services
- 98391000 - Decommissioning services

## Release History

- 23 Dec 2025 at 11:34 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/ea194fc8-0eac-4300-a9ff-4242e7ee236c

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/ea194fc8-0eac-4300-a9ff-4242e7ee236c
  23rd December 2025 - Awarded contract notice on Contracts Finder

## Provenance

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