Award

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

SELLAFIELD LIMITED

This public procurement record has 1 release in its history.

Award

23 Dec 2025 at 11:03

Summary of the contracting process

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.

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Notice Title

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

Notice Description

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.<br/><br/>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.<br/><br/>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.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05fc4f
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/085726-2025
Current Stage
Award
All Stages
Award

Procurement Classification

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

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

Notice Dates

Publication Date
23 Dec 20252 months ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
3 Dec 20252 months ago
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Cancelled
Awards Status
Active
Contracts Status
Active

Contracting Authority (Buyer)

Main Buyer
SELLAFIELD LIMITED
Contact Name
Hamish Fraser
Contact Email
hamish.x.fraser@sellafieldsites.com
Contact Phone
Not specified

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
TLD1 Cumbria

Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Supplier Information

Number of Suppliers
1
Supplier Name

EQUANS EANDS SOLUTIONS

Open Contracting Data Standard (OCDS)

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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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