Award

Heat network techno-economic feasibility study for Culham

SOUTH OXFORDSHIRE DISTRICT COUNCIL

This public procurement record has 3 releases in its history.

Award

27 Mar 2026 at 12:41

Tender

17 Nov 2025 at 14:57

Planning

04 Sep 2025 at 14:45

Summary of the contracting process

South Oxfordshire District Council has awarded a contract to AECOM LIMITED for a techno-economic feasibility study of a heat network in Culham, South Oxfordshire. This project is centred around the potential development of a heat network utilising waste heat from large data centres being constructed in Culham Campus, which is designated as the first AI Growth Zone by the UK Government. The procurement was conducted via an open method below the threshold for competition and the contract, with a value of £60,453, will run from 26th March 2026 to 31st December 2026. This award follows a series of procurement stages, including planning activities initiated on 4th September 2025, with a tender notice published on 17th November 2025. The focus lies in consulting services within the environmental and energy-efficiency engineering domains, aiming to support upcoming planning applications pertinent to the site and the strategic use of renewable heat sources.

This tender presents significant opportunities for businesses specialising in environmental engineering, energy efficiency, and heating technology to gain a foothold within the burgeoning AI Growth Zone. Companies with expertise in heat network development, particularly those incorporating low carbon solutions, stand to benefit from this initiative as it sets the groundwork for extensive projects involving new residential and commercial building developments. The consultancy services required align with cutting-edge environmental engineering objectives, providing SMEs and large-scale businesses with the chance to position themselves as leaders in sustainable development practices and contribute to the long-term energy efficiency goals set within South Oxfordshire’s strategic planning framework.

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Notice Title

Heat network techno-economic feasibility study for Culham

Notice Description

Culham has been designated as the first AI Growth Zone by the UK Government. As part of this, a 100MW data centre is being developed on Culham Campus, with aspirations for up to 500MW of data centres in the longer term. There may also be a further data centre proposed for the adjacent No. 1 site which is allocated for employment use. There is an opportunity to recycle waste heat from large computer systems storing internal data to supply heating for the local community, supplying heat to multiple buildings from a central source. The National Zoning Model does not yet identify this area as a potential heat network zone as the waste heat sources do not yet exist. The timescales for completion of the data centre are uncertain and subject to planning permission, however it is likely to be within the next five years, with an ambitious completion date suggested to be April 2028. Therefore, the council urgently needs to better understand how to capture the opportunities for low carbon heat networks arising from these developments. The South Oxfordshire Local Plan 2035 (adopted December 2020) has allocated: * land adjacent to Culham Campus for construction of 3,500 new homes - this development is a potential end user of the heat network. * A net increase of at least 7.3 hectares of employment land at/adjacent to Culham Campus - this may be a heat supplier or end user depending on the types of commercial development which come forward. A Local Development Order is being developed for the site. A previous heat mapping and energy masterplanning study for Culham was developed in 2017. This proposed three different potential heat network technologies for the site: * gas engine CHP with supplementary backup gas boilers; * centralised biomass boilers with supplementary backup gas boilers; * water source heat pump in River Thames with supplementary backup gas boilers. While the modelling and information in this study remains useful as background information, there have since been significant technological advances and changes to planned development for the site which means that this work would need to be revisited and updated as part of the techno-economic feasibility study. At this stage, the council has not committed to taking forward beyond the techno-economic feasibility study stage. Restrictions associated with local government reorganisation (LGR) will limit this council's ability to progress this project beyond the feasibility stage. However, the feasibility study will put the project in the best possible position for a third party or the successor authority, once established, to decide to progress the scheme. Furthermore, the planning applications for data centres and other nearby development are highly likely to be submitted before LGR is complete in 2028. Therefore, information is needed now so that South Oxfordshire District Council can consider whether planning powers could be utilised to require developments to be designed and constructed to supply or connect to a future heat network, including through the forthcoming Culham Local Development Order. The Council is seeking a single supplier to provide these consultancy services.

Planning Information

We are seeking to undertake soft market engagement to understand the abilities and indicative costs of the supply chain in relation to undertaking heat network feasibility studies to a potential site at Culham, South Oxfordshire. Participants are requested to provide their responses in the boxes within the Specification document and return these via the Proactis portal message function no later than 5pm Monday 22 September 2025. This deadline will not be extended. https://procontract.due-north.com/Advert?advertId=e2f4898b-ed87-f011-813a-005056b64545&p=08800155-5442-e511-80ed-000c29c9ba21

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05945d
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/028497-2026
Current Stage
Award
All Stages
Planning, Tender, Award

Procurement Classification

Notice Type
UK7 - Contract Details Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Below threshold - open competition
Tender Suitability
SME, VCSE
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services


CPV Codes

71313000 - Environmental engineering consultancy services

71314300 - Energy-efficiency consultancy services

71314310 - Heating engineering services for buildings

Notice Value(s)

Tender Value
£88,000 Under £100K
Lots Value
£88,000 Under £100K
Awards Value
Not specified
Contracts Value
£60,453 Under £100K

Notice Dates

Publication Date
27 Mar 20264 weeks ago
Submission Deadline
5 Jan 2026Expired
Future Notice Date
22 Sep 2025Expired
Award Date
26 Mar 20264 weeks ago
Contract Period
26 Mar 2026 - 31 Dec 2026 6-12 months
Recurrence
Not specified

Notice Status

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

Contracting Authority (Buyer)

Main Buyer
SOUTH OXFORDSHIRE DISTRICT COUNCIL
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
ABINGDON
Postcode
OX14 3JE
Post Town
Oxford
Country
England

Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ1 Berkshire, Buckinghamshire and Oxfordshire
Small Region (ITL 3)
TLJ14 Oxfordshire CC
Delivery Location
TLJ14 Oxfordshire CC

Local Authority
Vale of White Horse
Electoral Ward
Abingdon Abbey Northcourt
Westminster Constituency
Oxford West and Abingdon

Supplier Information

Number of Suppliers
1
Supplier Name

AECOM

Further Information

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