Scope
Reference
C26852
Description
Prior Information Notification relating to the forthcoming procurement opportunity for ThermoChimie Phase 4. The ThermoChimie project (Thermo-Chimie (version applicative 4.4.0)) is a thermodynamic database development project, co-funded by Nuclear Waste Services, NIRAS-ONDRAF, and Andra.
A robust, traceable, exhaustive, and dependable thermodynamic database is essential for underpinning a future Environmental Safety Case for the surface, near-surface or deep geological disposal of radioactive waste, as well as to perform a range of sensitivity and scoping calculations in support of ongoing research activities.
This is a PIN for ThermoChimie Phase 4 please navigate to the project - C26852 on Atamis https://atamis-2464.my.site.com/s/Welcome
Phase 4 of the ThermoChimie project is planned to launch in January 2026. The ThermoChimie Phase 4 Framework has the overall objective of providing both specialist and non-technical support resource to the consortium, in the form of a range of desk-based and experimental data generation/selection activities. Outlined activities are in support of the four key project success factors: (i) database traceability, (ii) consistency, (iii) east of use, and (iv) exhaustivity.
Commercial tool
Establishes a framework
Total value (estimated)
- £2,500,000 excluding VAT
- £2,500,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 February 2026 to 31 January 2029
- Possible extension to 31 January 2031
- 5 years
Description of possible extension:
+1 +1
Main procurement category
Services
CPV classifications
- 73000000 - Research and development services and related consultancy services
Lot 1. Lot 1
Description
Secretariat
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 2. Lot 2
Description
Lot 2 - Database and Website Management / Maintenance
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 3. Lot 3
Description
Lot 3 - Desk Studies: Data Generation, Selection, Assessment and Verification
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Lot 4. Lot 4
Description
Lot 4 - Experimental Studies: Data Generation, Model Verification
Same for all lots
CPV classifications and contract dates are shown in the Scope section, because they are the same for all lots.
Framework
Maximum number of suppliers
Unlimited
Submission
Publication date of tender notice (estimated)
14 November 2025
Enquiry deadline
27 November 2025, 12:00pm
Tender submission deadline
11 December 2025, 12:00pm
Award decision date (estimated)
16 January 2026
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Technical | Quality | 70.00% |
| Commercial | Price | 20.00% |
| Social Value | Quality | 10.00% |
Procedure
Procedure type
Open procedure
Contracting authority
Nuclear Waste Services Limited
- Public Procurement Organisation Number: PNWB-5846-DYCH
Pelham House, Pelham Drive,
Calderbridge, Seascale
CA20 1DB
United Kingdom
Contact name: Hannah Armstrong
Email: hannah.armstrong@nuclearwasteservices.uk
Website: https://www.gov.uk/government/organisations/nuclear-waste-services/about
Region: UKD11 - West Cumbria
Organisation type: Public authority - sub-central government