---
title: "Provision of Operation, Maintenance & Management of CHPP & Boiler Park, Professional Services Other, Energy/Utility Consultants"
ocid: "ocds-h6vhtk-05fc4f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05fc4f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05fc4f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05fc4f.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "SELLAFIELD LIMITED"
published: "2025-12-23"
---

# Provision of Operation, Maintenance & Management of CHPP & Boiler Park, Professional Services Other, Energy/Utility Consultants

Buyer: SELLAFIELD LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-05fc4f

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## Summary

The contract for the provision of operation, maintenance, and management of the Combined Heat and Power Plant (CHPP) and Boiler Park at the Fellside site in Seascale, Cumbria, North West England has been awarded by Sellafield Limited. This procurement falls under the services category, specifically the operation of a power plant, aligning with CPV classification 65410000. The procurement process was completed through a limited method, awarded without prior publication of a call for competition, due to no suitable tenders being submitted initially. The contract was officially signed on 3rd December 2025, valued at approximately £128 million for a term of six years, with an optional two-year extension.

This contract is a significant opportunity for large businesses in the energy and utilities sector, particularly those capable of providing comprehensive operational, maintenance, and management services. The project not only involves ensuring the reliable supply of process and welfare steam to the Sellafield nuclear site but also contributes to nuclear safety, underscoring its importance in the field of energy consultancy and plant operations. Equans E&S Solutions Limited, the winning bidder, had the capability to meet these technical and price criteria, thus reflecting the potential for businesses adept in energy efficiency and decommissioning services to participate in and benefit from similar tenders. The award opens up subcontracting opportunities valued at £40 million, further enhancing business growth prospects for companies specializing in maintenance services.

## Notice

Sellafield Ltd has awarded a Contract to Equans E&S Solutions Limited for an Operation Maintenance and Management Agreement for its existing Combined Heat and Power Plant (CHPP) and Boiler Park at the Fellside site, which is adjacent to the Sellafield nuclear site in Cumbria, North West England.

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.

### Lot Information

Lot 1

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).

Options: Initial 6 year contract with an option of a 2 year extension.

### Procurement Information

No tenders were submitted in response to the Restricted Procedure originally used for this procurement. As a result of this Sellafield Ltd, in line with Regulation 32(2)(a) of the Public Contract Regulations 2015, undertook a Negotiated Procedure without Prior Publication to award a Contract for this procurement which resulted in two tenders being submitted and Equans E&S Solutions Ltd being awarded the Contract.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/085726-2025 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Limited |
| Procurement method details | Award procedure without prior publication of a call for competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

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

## Values

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

## Status

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

## 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 | TLD1 Cumbria |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | EQUANS EANDS 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 11:03 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/085726-2025

## Notice URLs

- https://www.gov.uk/government/organisations/sellafield-ltd

## 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-05fc4f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05fc4f.json.