Section one: Contracting authority
one.1) Name and addresses
Sellafield Limited
Hinton House, Birchwood Park Avenue
Warrington
WA3 6GR
Contact
Hamish Fraser
hamish.x.fraser@sellafieldsites.com
Country
United Kingdom
Region code
UKD1 - Cumbria
National registration number
01002607
Internet address(es)
Main address
https://www.gov.uk/government/organisations/sellafield-ltd
Buyer's address
https://www.gov.uk/government/organisations/sellafield-ltd
one.4) Type of the contracting authority
Body governed by public law
one.5) Main activity
Other activity
Nuclear Decommissioning
Section two: Object
two.1) Scope of the procurement
two.1.1) Title
Provision of Operation, Maintenance & Management of CHPP & Boiler Park, Professional Services Other, Energy/Utility Consultants
two.1.2) Main CPV code
- 65410000 - Operation of a power plant
two.1.3) Type of contract
Services
two.1.4) Short 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.
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 £128M.
The contract commenced on 03/12/2025.
two.1.6) Information about lots
This contract is divided into lots: No
two.1.7) Total value of the procurement (excluding VAT)
Value excluding VAT: £128,000,000
two.2) Description
two.2.2) Additional CPV code(s)
- 31124000 - Steam-turbine generator and related apparatus
- 42162000 - Steam-generating boilers
- 98391000 - Decommissioning services
- 50430000 - Repair and maintenance services of precision equipment
- 42113100 - Parts of steam turbines
- 71314300 - Energy-efficiency consultancy services
- 42163000 - Steam generators
- 42164000 - Auxiliary plant for use with boilers
- 42112100 - Steam turbines
- 42112300 - Gas turbines
- 42160000 - Boiler installations
two.2.3) Place of performance
NUTS codes
- UKD1 - Cumbria
Main site or place of performance
Sellafield - Seascale Cumbria
two.2.4) Description of the procurement
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).
two.2.5) Award criteria
Quality criterion - Name: Technical / Weighting: 70
Price - Weighting: 30
two.2.11) Information about options
Options: Yes
Description of options
Initial 6 year contract with an option of a 2 year extension.
two.2.13) Information about European Union Funds
The procurement is related to a project and/or programme financed by European Union funds: No
Section four. Procedure
four.1) Description
four.1.1) Type of procedure
Award of a contract without prior publication of a call for competition in the cases listed below
- No tenders or no suitable tenders/requests to participate in response to restricted procedure
Explanation:
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.
four.1.8) Information about the Government Procurement Agreement (GPA)
The procurement is covered by the Government Procurement Agreement: Yes
Section five. Award of contract
A contract/lot is awarded: Yes
five.2) Award of contract
five.2.1) Date of conclusion of the contract
3 December 2025
five.2.2) Information about tenders
Number of tenders received: 2
Number of tenders received from SMEs: 0
Number of tenders received from tenderers from other EU Member States: 0
Number of tenders received from tenderers from non-EU Member States: 0
Number of tenders received by electronic means: 2
The contract has been awarded to a group of economic operators: No
five.2.3) Name and address of the contractor
Equans EandS Solutions Limited
Becket House, 1 Lambeth Palace Road
London
SE1 7EU
Country
United Kingdom
NUTS code
- UKI - London
National registration number
04243192
The contractor is an SME
No
five.2.4) Information on value of contract/lot (excluding VAT)
Initial estimated total value of the contract/lot: £128,000,000
Total value of the contract/lot: £128,000,000
five.2.5) Information about subcontracting
The contract is likely to be subcontracted
Value or proportion likely to be subcontracted to third parties
Value excluding VAT: £40,000,000
Short description of the part of the contract to be subcontracted
Maintenance services
Section six. Complementary information
six.4) Procedures for review
six.4.1) Review body
Sellafield Limited
Hinton House, Birchwood Park Avenue
Warrington
WA3 6GR
Country
United Kingdom
Internet address
https://www.gov.uk/government/organisations/sellafield-ltd
six.4.2) Body responsible for mediation procedures
Sellafield Limited
Hinton House, Birchwood Park Avenue
Warrington
WA3 6GR
Country
United Kingdom
Internet address
https://www.gov.uk/government/organisations/sellafield-ltd
six.4.4) Service from which information about the review procedure may be obtained
Sellafield Limited
Hinton House, Birchwood Park Avenue
Warrington
WA3 6GR
Country
United Kingdom