Award

Provision of Operation, Maintenance & Management CHPP & Boiler Park

SELLAFIELD LIMITED

This public procurement record has 1 release in its history.

Award

23 Dec 2025 at 11:34

Award Notice
Summary of the contracting process

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.

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Notice Information

Notice Title

Provision of Operation, Maintenance & Management CHPP & Boiler Park

Notice Description

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.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-ebdf28a5-3a9f-4e9d-9480-a780f54caee0
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/ea194fc8-0eac-4300-a9ff-4242e7ee236c
Current Stage
Award
All Stages
Award

Procurement Classification

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

Common Procurement Vocabulary (CPV)

CPV 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

CPV 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

Notice Value(s)

Tender Value
£128,000,000 £100M-£1B
Lots Value
Not specified
Awards Value
£128,000,000 £100M-£1B
Contracts Value
Not specified

Notice Dates

Publication Date
23 Dec 20252 months ago
Submission Deadline
28 Feb 2025Expired
Future Notice Date
Not specified
Award Date
3 Dec 20252 months ago
Contract Period
3 Dec 2025 - 2 Dec 2031 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Not Specified
Awards Status
Active
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SELLAFIELD LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
WARRINGTON
Postcode
WA3 6GR
Post Town
Warrington
Country
England
Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
TLD North West (England)
Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Supplier Information

Number of Suppliers
1
Supplier Name

EQUANS E&S SOLUTIONS

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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