UK Public Sector Contracts & Tenders

NNL are looking to implement a electrochemical technology framework.

Required delivery of two schemes of work: - (A) Fabrication and installation of a HVAC system: reference Procurement specification IP20601062559 (B) Fabrication and installation of a Mezzanine platform: reference Procurement specification IP20601062569

This exercise is a request for information as part of a pre-tender market consultation, it does not constitute a formal procurement process. The purpose of this exercise is to assess the capabilities within current markets to delivery this contract. UK National Nuclear Laboratory (UKNNL) may choose to contact suppliers as a result of completing this questionnaire, if you wish for us not to contact you, please make this clear on your questionnaire response. We are looking for chemically compatible pumps that are robust for periods of extended use with both aqueous and organic reagents, delivering accurate and dependable flow rates. Please respond to the appended questionnaire.

This exercise is a request for information as part of a pre-tender market consultation, it does not constitute a formal procurement process. The purpose of this exercise is to assess the capabilities within current markets to delivery this contract. UK National Nuclear Laboratory (UKNNL) may choose to contact suppliers as a result of completing this questionnaire, if you wish for us not to contact you, please make this clear on your questionnaire response. We are looking for chemically compatible pumps that are robust for periods of extended use with both aqueous and organic reagents, delivering accurate and dependable flow rates. Please respond to the appended questionnaire.

United Kingdom National Nuclear Laboratory (UKNNL) intends to purchase three Diamond wire CNC cutting machines which will be situated within caves at UKNNL Windscale Laboratory to produce samples cut from zirconium, hafnium and zirconium composite plates. As the equipment is situated in-cave with no man access possible, any manual operations or maintenance, including the replacement of the diamond wire, will need to be carried out remotely using Master Slave Manipulators (MSM). The machines will be required to cut 500 to 1000 samples over a ten-year period. The supplier will be required to supply: • Remotely operated in-cave CNC controlled diamond wire saw. • Out of cave control system including software. • Set of umbilical cables to connect the in-cave right to the out of cave control system. The works contract is compiled of the following stages: • Design stages (Preliminary and Detailed) • Manufacturing and FAT Testing. If you are interested in this opportunity please email: izak.cartain-farish@uknnl.com

United Kingdom National Nuclear Laboratory (UKNNL) intends to purchase three Diamond wire CNC cutting machines which will be situated within caves at UKNNL Windscale Laboratory to produce samples cut from zirconium, hafnium and zirconium composite plates. As the equipment is situated in-cave with no man access possible, any manual operations or maintenance, including the replacement of the diamond wire, will need to be carried out remotely using Master Slave Manipulators (MSM). The machines will be required to cut 500 to 1000 samples over a ten-year period. The supplier will be required to supply: • Remotely operated in-cave CNC controlled diamond wire saw. • Out of cave control system including software. • Set of umbilical cables to connect the in-cave right to the out of cave control system. The works contract is compiled of the following stages: • Design stages (Preliminary and Detailed) • Manufacturing and FAT Testing. If you are interested in this opportunity please email: izak.cartain-farish@uknnl.com

This exercise is a request for information as part of a pre-tender market consultation, it does not constitute a formal procurement process. The purpose of this exercise is to assess the capabilities within current markets to delivery this contract. National Nuclear Laboratory (NNL) may choose to contact suppliers as a result of completing this questionnaire, if you wish for us not to contact you, please make this clear on your questionnaire response. Please read the information provided in the Datasheet prior to responding to this questionnaire. The Coated Particle Fuels (CPF) programme is to install an overall capability to produce Tri-structural Isotropic (TRISO) fuel in United Kingdom National Nuclear Laboratory (UKNNL)'s Preston Laboratory. The CPF line has four items of equipment that require cooling during operation - these fall in two systems, "Coater" (2 users) and "Compaction" (2 users). The purpose of this RFI is to determine whether it would be optimal to have 1 or 2 chillers supplying the system, what ancillaries would be recommended and to identify suitable suppliers. The attached Datasheet details the technical requirements of the chiller(s), and should be used to help determine the number of chillers. It details the scope of supply with respect to equipment items. Non-equipment items (e.g. details of paperwork, etc.) will be detailed in a separate specification which will be published with the full tender at a future date.

United Kingdom National Nuclear Laboratory are hosting a supplier engagement day to advertise upcoming procurement opportunities relating to the HALEU (High Assay Low Enriched Uranium) Deconversion Fuels programme. The event will take place on 6th March 2025 at the Tickled Trout Hotel in Preston. The event will focus on providing the supply chain with an understanding on HALEU fuel technology and capability requirements needed to ensure the UK has a domestic supply of enriched HALEU fuel for the next generation of nuclear reactors. UKNNL are tasked with designing, building, and delivering an operable pilot scale demonstration rig that will assist the commercial nuclear fuels market in developing HALEU fuel on a commercial scale. For UKNNL to achieve this deliverable we are seeking the assistance of the UK supply chain to provide through a tendering process the following services & system technologies. Mechanical, Process and Electrical consultancy design, System control and integration, Rotary kiln, Chemical & gas Off gas scrubber abatement systems, lifting and handling equipment, weighing systems, trace heated pipe systems & control, high temperature reaction vessels, high temperature steam generator, Uranium Hexafluoride feed system, Welding & Fabrication, Mechanical and Electrical assembly. Please note places are limited to 50 suppliers with 2 representatives from each respective company. If you are interested in attending the event please register your interest and secure your place. Please visit the ticketing website to register your place and where you will also find more information about the event. Event Timings: Please arrive from 9.30am onwards for a 10am start. There will be food and drinks on arrival. 10am -10.45am there will be introductions and presentation from UKNNL. 10.45am onwards, open room where you will have the opportunity to speak to UKNNL staff. Lunch will be provided at 12.30pm.

United Kingdon National Nuclear Laboratory are hosting a supplier engagement day to advertise upcoming procurement opportunities relating to the HALEU (High Assy Low Enriched Uranium) Deconversion Fuels programme. The event will take place on 6th March 2025 at the Tickled Trout Hotel in Preston. The event will focus on providing the supply chain with an understanding on HALEU fuel technology and capability requirements needed to ensure the UK has a domestic supply of enriched HALEU fuel for the next generation of nuclear reactors. UKNNL are tasked with designing, building, and delivering an operable pilot scale demonstration rig that will assist the commercial nuclear fuels market in developing HALEU fuel on a commercial scale. For UKNNL to achieve this deliverable we are seeking the assistance of the UK supply chain to provide through a tendering process the following services & system technologies. Mechanical, Process and Electrical consultancy design, System control and integration, Rotary kiln, Chemical & gas Off gas scrubber abatement systems, lifting and handling equipment, weighing systems, trace heated pipe systems & control, high temperature reaction vessels, high temperature steam generator, Uranium Hexafluoride feed system, Welding & Fabrication, Mechanical and Electrical assembly. Please note places are limited to 50 suppliers with 2 representatives from each respective company. If you are interested in attending the event please register your interest and secure your place. Please visit the ticketing website to register your place and where you will also find more information about the event. Event Timings: Please arrive from 9.30am onwards for a 10am start. There will be food and drinks on arrival. 10am -10.45am there will be introductions and presentation from UKNNL. 10.45am onwards, open room where you will have the opportunity to speak to UKNNL staff. Lunch will be provided at 12.30pm.

This exercise is a request for information as part of a pre-tender market consultation, it does not constitute a formal procurement process. The purpose of this exercise is to assess the capabilities within current markets to delivery this contract. United Kingdom National Nuclear Laboratory (UKNNL) may choose to contact suppliers as a result of completing this questionnaire, if you wish for us not to contact you, please make this clear on your questionnaire response. Please read the information provided in the attached specification document before responding to this questionnaire. An independent programmer may be required to review software source code written in FORTRAN77. The reviewer will be expected to be up to date with best software development practises as well as the latest security issues with FORTRAN77. This review will cover the following: • Review the code using software such as Sonarqube or other appropriate code analysis software. • Identify any security vulnerabilities in the code and make recommendations to fix these. • Make any recommendations for improving the code. • Recommend best current FORTRAN compilers for future development. • Define the best structures for documenting/tracking the code. Additional information: How to apply: Follow the instructions given in the description or the more information section.

The UKNNL is introducing an open framework for software solutions and hardware in support of technical and scientific computing applications. This is a Preliminary Market Engagement Notice for the procurement to gather expressions of interest and advise of an upcoming market engagement session. The Framework will be lotted into the following lots: Lot 1 – Infrastructure Support Lot 2 Software Development Lot 3 Edge Computing & IoT Lot 4 Scientific Computation Facilities Lot 5 Research activities Lot 6 Full solution build If you are interested in attending the session please register your interest and secure your place. Please visit the ticketing website in the link below to register your place: https://www.ticketsource.co.uk/national-nuclear-laboratory/t-nopxyeo The session will take place on 29th May 2025 via Microsoft Teams at 10am. Please also ensure to sign up to the CTM portal link held in this notice to express your interest and download the scope of this framework.

The United Kingdom National Nuclear Lab (UKNNL) requires the provision of and Advanced Thermal Hydraulics Modelling Tool.

The United Kingdom National Nuclear Lab (UKNNL) requires the provision of and Advanced Thermal Hydraulics Modelling Tool.

The United Kingdom National Nuclear Lab (UKNNL) requires the provision of Occupational Health and Related Services. To ensure a comprehensive view on the current situation, we are issuing the attached Early Engagement RFI to receive input from the supply market. Early Engagement RFI Submission Deadline = 09/07/2025 (complete and return Early Engagement RFI OHRS). This exercise is a request for information, it does not constitute a formal procurement process. The purpose of this exercise is to assess the interest and capabilities within current markets to deliver this service. UKNNL may choose to contact suppliers based on the information provided in this questionnaire. If you prefer not to be contacted, please clearly indicate this preference in your questionnaire response. UKNNL assure you that any information provided during this exercise will not adversely affect the evaluation of any offers you may submit in response to any future Invitations to Tender. Instructions: Please populate ALL and ONLY the yellow shaded cells, as applicable. Please note some fields to be completed include a predefined drop down list. Do not add, delete, insert, move, or otherwise change any cells, rows, or columns in any of the worksheets. Please return this questionnaire to james.ngoe@uknnl.com before 17:0 PM on Friday 9th July 2025.

AB Rig: UKNNL Require a Design and Manufacture of remote operated AB Rig and associated equipment to size reduce material and allow for moving material in the X, Y & Z axis. The AB Rig consists of 4 plant items; XY Table Z Drive & Rotational Rig Powered Hacksaw Slitting Saw Assembly Additional equipment shall be present on the AB Rig either as part of the 4 plant items or as standalone ancillary items; Clamping Capability Cameras Lifting Capability Temperature Probe Milling Head Support Bracket For further information with regards to this opportunity, please contact: Izak.Cartain-Farish@uknnl.com

UKNNL are seeking expressions of interest from suppliers who are able to support with waste disposal service in West Cumbria. UKNNL are interested in hearing from suppliers who can process one or more of the following types of waste: - Office based waste - Ground waste - Chemical Waste - Grout/Cement Waste - Glass & Wood Recycling - Oil Supplier's are asked to email Emma.Kirkpatrick@uknnl to express an interest and should provide information on the services available to help inform a potential future tender exercise.

UKNNL is conducting preliminary market engagement to see if there are any suppliers who can supply a Leica DMi 5000 microscope (New or Refurbished) for the purpose of being used as spare parts for existing equipment.

Safeguards-related training courses. UKNNL on behalf of our customers has a long-term requirement for a wide range of safeguards-related training courses. New safeguards inspectors require training and practical experience on fuel cycle plants and the techniques and procedures to be applied during inspections. More advanced courses are required for senior inspectors, whilst specialised courses are desirable for other key personnel. To undertake this training, access to appropriate expertise and nuclear facilities, is required and in some cases made only available by Member States. Inspectors need to develop specific listening and negotiation skills to deal confidently with difficult situations arising from disagreements with local, regional and State authorities, facility personnel in planning, conducting and reporting safeguards inspections and other activities based on Safeguards Agreements. The course objectives must be developed with the purpose to help IAEA staff and inspectors fine-tune their skills, with an emphasis on providing insights and guidance applicable in all structured negotiating situations, and specific tips for dealing with inflexible interlocutors and for handling issues arising from cultural differences and difficult personality traits. Skills required in this course include direct/positive speaking, careful listening, asking 'open' questions, impartiality, confidentiality, handling emotions, self-esteem and 'face-saving' strategies, differing ethnic/cultural value systems, and dealing with 'spoilers' and 'bad leaders'. The course facilitators must have extensive experience in diplomatic negotiation, with the ability to utilise experts and former diplomats with a high-level of experience in negotiation and professional mediation. The proposed contractor must have experience in international or multilateral political environments and must be familiar with the responsibilities and activities of the IAEA and its inspectors. The specific target for the research is considered sensitive and, therefore suppliers must meet the minimum security requirements to handle, OFFICIAL SENSITIVE information.

Development of 3D Models for Nuclear Facilities. The International Atomic Energy Agency (IAEA) maintains its ability to verify the nuclear programmes of non-nuclear weapon State (NNWS), including the capability to rapidly respond to any significant changes required for the implementation of safeguards-related activities in the field. As one part of its longer-term preparedness activities to date, the Department of Safeguards has already been able to acquire and demonstrate a limited technical capability in using Virtual Reality (VR) navigation inside real-world 3D scans, including the ability to attach relevant geobased data sources to 2D optical imagery. Lessons learned from previous VR projects have already been applied in the development of the current capability. However, to be more effective in its ability to rapidly respond to potentially significant changes in the short term, there is a need for the Department of Safeguards to develop 3D models of a number of very specific critical facilities. As part of its long term preparedness activities, the Department of Safeguards needs to develop the ability to develop and use 3D and Virtual Reality (VR) models for training, analysis and knowledge management. This task will support the creation of models for a number of different nuclear facilities and sites, in close consultation with IAEA experts and inspectors. The 3D models will provide tangible benefits in terms of knowledge management and implementation of safeguards. This will include the training/familiarization of inspectors who may have limited experience of the specific processes at the selected critical nuclear facilities and implementation of safeguards therein. The activity within this task is highly specialised, requiring significant technical knowledge and capabilities with advanced state-of-the-art 3D modelling technology. The proposed contractor must have experience of developing 3D models and resources similar to the facilities of interest. In addition, models must have the capability of being integrated with relevant IAEA Safeguards IT architecture, standards, policies and procedures. The proposed contractor must demonstrable experience of working with the nuclear sector. The specific target for the research is considered sensitive and, therefore suppliers must meet the minimum security requirements to handle, OFFICIAL SENSITIVE information.