{ "uri": "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-064afb", "publisher": { "name": "Cabinet Office", "scheme": "GB-GOR", "uid": "D2", "uri": "https://www.gov.uk/government/organisations/cabinet-office" }, "publishedDate": "2026-02-09T11:57:54Z", "license": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/", "publicationPolicy": "https://www.gov.uk/government/publications/open-contracting", "version": "1.1", "extensions": [ "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json", "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json", "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json" ], "packages": [ "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-064afb" ], "records": [ { "ocid": "ocds-h6vhtk-064afb", "releases": [ { "ocid": "ocds-h6vhtk-064afb", "id": "011320-2026", "tag": [ "planning" ], "date": "2026-02-09T11:57:54Z", "initiationType": "tender", "parties": [ { "name": "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED", "id": "GB-COH-03857752", "identifier": { "scheme": "GB-COH", "id": "03857752" }, "additionalIdentifiers": [ { "scheme": "GB-PPON", "id": "PVXT-8784-YGNV" } ], "address": { "streetAddress": "Chadwick House Warrington Road", "locality": "Warrington", "postalCode": "WA3 6AE", "country": "GB", "countryName": "United Kingdom", "region": "UKD61" }, "contactPoint": { "email": "procurement@uknnl.com" }, "roles": [ "buyer" ], "details": { "url": "http://www.uknnl.com", "classifications": [ { "scheme": "UK_CA_TYPE", "id": "publicAuthoritySubCentralGovernment", "description": "Public authority - sub-central government" } ] } } ], "buyer": { "id": "GB-COH-03857752", "name": "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED" }, "planning": { "milestones": [ { "id": "engagement", "type": "engagement", "description": "This exercise is an Expression of interest and is 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 service.\nCompany Name :United Kingdom National Nuclear Laboratory\nDelivery address: Springfields, Salwick, Preston, Lancashire.\nPR4 0XJ\nContact :Procurement@uknnl.com \nOpportunity to attend site for pre-tender engagement will be provided depending on EOI received", "dueDate": "2026-02-20T23:59:59Z", "status": "scheduled" } ], "documents": [ { "id": "011320-2026", "documentType": "marketEngagementNotice", "noticeType": "UK2", "description": "Preliminary market engagement notice on Find a Tender", "url": "https://www.find-tender.service.gov.uk/Notice/011320-2026", "datePublished": "2026-02-09T11:57:54Z", "format": "text/html" } ] }, "tender": { "id": "ocds-h6vhtk-064afb", "legalBasis": { "id": "2023/54", "scheme": "UKPGA", "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents" }, "title": "Construction and commission of modular rig", "description": "UKNNL is seeking expressions of interest from suitably qualified and experienced contractors to support the assembly, installation verification, and inactive commissioning of a new modular experimental rig at the Preston facility.\nThe rig comprises a modular, three-storey structure incorporating multiple process and utility services. The appointed contractor will be responsible for mechanical assembly, installation checks, and inactive commissioning (without uranics) to enable active commissioning (with uranics) by others.\n2. Scope of Work\nThe contractor will be expected to undertake, as a minimum:\nMechanical Assembly\n•\tOffloading, positioning, and installation of prefabricated rig modules\n•\tMechanical assembly and integration of modules to form the complete structure\n•\tInstallation of access platforms, supports, and ancillary equipment\n•\tAlignment, fixing, and structural integrity checks\nInterface & Service Readiness\n•\tPreparation and verification of interfaces for:\no\tGas services\no\tExtraction/ventilation\no\tFluids\no\tElectrical supplies\n•\tCoordination with service installation contractors\n•\tEnsuring connection points are accessible, correctly labelled, and compliant with drawings/specifications\nElectrical, Controls and Instrumentation:\n•\tCross module connections\n•\tFinal install\n•\tConnection to Pilot Plant electrical distribution network\n1. Project Overview\nUKNNL is seeking expressions of interest from suitably qualified and experienced contractors to support the assembly, installation verification, and inactive commissioning of a new modular experimental rig at the Preston facility.\nThe rig comprises a modular, three-storey structure incorporating multiple process and utility services. The appointed contractor will be responsible for mechanical assembly, installation checks, and inactive commissioning (without uranics) to enable active commissioning (with uranics) by others.\n________________________________________\n2. Scope of Work\nThe contractor will be expected to undertake, as a minimum:\nMechanical Assembly\n•\tOffloading, positioning, and installation of prefabricated rig modules\n•\tMechanical assembly and integration of modules to form the complete structure\n•\tInstallation of access platforms, supports, and ancillary equipment\n•\tAlignment, fixing, and structural integrity checks\nInterface & Service Readiness\n•\tPreparation and verification of interfaces for:\no\tGas services\no\tExtraction/ventilation\no\tFluids\no\tElectrical supplies\n•\tCoordination with service installation contractors\n•\tEnsuring connection points are accessible, correctly labelled, and compliant with drawings/specifications\nElectrical, Controls and Instrumentation:\n•\tCross module connections\n•\tFinal install\n•\tConnection to Pilot Plant electrical distribution network\nInstallation Verification\n•\tCompletion of installation checks against drawings and specifications\n•\tQA/QC inspections and documentation\n•\tIdentification and resolution of defects or non-conformances\n•\tAs-built documentation and redlining\nInactive Commissioning\n•\tMechanical completion checks\n•\tPressure/leak testing (where applicable)\n•\tFunctional checks (non-energised / non-process)\n•\tSafety and compliance verification\n•\tHandover documentation and commissioning packs\n________________________________________\n3. Contractor Requirements\nInterested parties should demonstrate:\n•\tExperience assembling modular or multi-storey industrial/process rigs or plant\n•\tExperience working with multi-disciplinary service interfaces (gas, fluids, extraction, electrical)\n•\tCommissioning and mechanical completion experience\n•\tStrong health, safety, and quality management systems to comply with CDM regulations\n•\tAbility to work within an operational facility environment\n•\tRelevant certifications and competencies\n________________________________________\n4. Deliverables\nThe appointed contractor will be expected to provide:\n•\tMethod statements and risk assessments\n•\tInstallation and commissioning plans\n•\tInspection and test records\n•\tMechanical completion dossiers\n•\tAs-built documentation\n•\tHandover pack\n________________________________________\n5. Programme (Indicative)\n•\tSite readiness: June 2026\n•\tAssembly period: 3 months\n•\tHandover to active commissioning: September 2026", "items": [ { "id": "1", "additionalClassifications": [ { "scheme": "CPV", "id": "45000000", "description": "Construction work" }, { "scheme": "CPV", "id": "51000000", "description": "Installation services (except software)" } ], "deliveryAddresses": [ { "region": "UK", "country": "GB", "countryName": "United Kingdom" } ], "relatedLot": "1" } ], "mainProcurementCategory": "works", "aboveThreshold": false, "lots": [ { "id": "1", "suitability": { "sme": true }, "contractPeriod": { "startDate": "2026-06-01T00:00:00+01:00", "endDate": "2026-09-30T23:59:59+01:00" }, "status": "planning" } ], "status": "planning" }, "language": "en", "extensions": [ "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json", "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json", "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json" ] } ], "compiledRelease": { "tag": [ "compiled" ], "id": "ocds-h6vhtk-064afb-2026-02-09T11:57:54Z", "date": "2026-02-09T11:57:54Z", "ocid": "ocds-h6vhtk-064afb", "initiationType": "tender", "parties": [ { "id": "GB-COH-03857752", "name": "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED", "identifier": { "scheme": "GB-COH", "id": "03857752" }, "additionalIdentifiers": [ { "scheme": "GB-PPON", "id": "PVXT-8784-YGNV" } ], "address": { "streetAddress": "Chadwick House Warrington Road", "locality": "Warrington", "postalCode": "WA3 6AE", "country": "GB", "countryName": "United Kingdom", "region": "UKD61" }, "contactPoint": { "email": "procurement@uknnl.com" }, "roles": [ "buyer" ], "details": { "url": "http://www.uknnl.com", "classifications": [ { "scheme": "UK_CA_TYPE", "id": "publicAuthoritySubCentralGovernment", "description": "Public authority - sub-central government" } ] } } ], "buyer": { "id": "GB-COH-03857752", "name": "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED" }, "planning": { "milestones": [ { "id": "engagement", "type": "engagement", "description": "This exercise is an Expression of interest and is 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 service.\nCompany Name :United Kingdom National Nuclear Laboratory\nDelivery address: Springfields, Salwick, Preston, Lancashire.\nPR4 0XJ\nContact :Procurement@uknnl.com \nOpportunity to attend site for pre-tender engagement will be provided depending on EOI received", "dueDate": "2026-02-20T23:59:59Z", "status": "scheduled" } ], "documents": [ { "id": "011320-2026", "documentType": "marketEngagementNotice", "noticeType": "UK2", "description": "Preliminary market engagement notice on Find a Tender", "url": "https://www.find-tender.service.gov.uk/Notice/011320-2026", "datePublished": "2026-02-09T11:57:54Z", "format": "text/html" } ] }, "tender": { "id": "ocds-h6vhtk-064afb", "legalBasis": { "id": "2023/54", "scheme": "UKPGA", "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents" }, "title": "Construction and commission of modular rig", "description": "UKNNL is seeking expressions of interest from suitably qualified and experienced contractors to support the assembly, installation verification, and inactive commissioning of a new modular experimental rig at the Preston facility.\nThe rig comprises a modular, three-storey structure incorporating multiple process and utility services. The appointed contractor will be responsible for mechanical assembly, installation checks, and inactive commissioning (without uranics) to enable active commissioning (with uranics) by others.\n2. Scope of Work\nThe contractor will be expected to undertake, as a minimum:\nMechanical Assembly\n•\tOffloading, positioning, and installation of prefabricated rig modules\n•\tMechanical assembly and integration of modules to form the complete structure\n•\tInstallation of access platforms, supports, and ancillary equipment\n•\tAlignment, fixing, and structural integrity checks\nInterface & Service Readiness\n•\tPreparation and verification of interfaces for:\no\tGas services\no\tExtraction/ventilation\no\tFluids\no\tElectrical supplies\n•\tCoordination with service installation contractors\n•\tEnsuring connection points are accessible, correctly labelled, and compliant with drawings/specifications\nElectrical, Controls and Instrumentation:\n•\tCross module connections\n•\tFinal install\n•\tConnection to Pilot Plant electrical distribution network\n1. Project Overview\nUKNNL is seeking expressions of interest from suitably qualified and experienced contractors to support the assembly, installation verification, and inactive commissioning of a new modular experimental rig at the Preston facility.\nThe rig comprises a modular, three-storey structure incorporating multiple process and utility services. The appointed contractor will be responsible for mechanical assembly, installation checks, and inactive commissioning (without uranics) to enable active commissioning (with uranics) by others.\n________________________________________\n2. Scope of Work\nThe contractor will be expected to undertake, as a minimum:\nMechanical Assembly\n•\tOffloading, positioning, and installation of prefabricated rig modules\n•\tMechanical assembly and integration of modules to form the complete structure\n•\tInstallation of access platforms, supports, and ancillary equipment\n•\tAlignment, fixing, and structural integrity checks\nInterface & Service Readiness\n•\tPreparation and verification of interfaces for:\no\tGas services\no\tExtraction/ventilation\no\tFluids\no\tElectrical supplies\n•\tCoordination with service installation contractors\n•\tEnsuring connection points are accessible, correctly labelled, and compliant with drawings/specifications\nElectrical, Controls and Instrumentation:\n•\tCross module connections\n•\tFinal install\n•\tConnection to Pilot Plant electrical distribution network\nInstallation Verification\n•\tCompletion of installation checks against drawings and specifications\n•\tQA/QC inspections and documentation\n•\tIdentification and resolution of defects or non-conformances\n•\tAs-built documentation and redlining\nInactive Commissioning\n•\tMechanical completion checks\n•\tPressure/leak testing (where applicable)\n•\tFunctional checks (non-energised / non-process)\n•\tSafety and compliance verification\n•\tHandover documentation and commissioning packs\n________________________________________\n3. Contractor Requirements\nInterested parties should demonstrate:\n•\tExperience assembling modular or multi-storey industrial/process rigs or plant\n•\tExperience working with multi-disciplinary service interfaces (gas, fluids, extraction, electrical)\n•\tCommissioning and mechanical completion experience\n•\tStrong health, safety, and quality management systems to comply with CDM regulations\n•\tAbility to work within an operational facility environment\n•\tRelevant certifications and competencies\n________________________________________\n4. Deliverables\nThe appointed contractor will be expected to provide:\n•\tMethod statements and risk assessments\n•\tInstallation and commissioning plans\n•\tInspection and test records\n•\tMechanical completion dossiers\n•\tAs-built documentation\n•\tHandover pack\n________________________________________\n5. Programme (Indicative)\n•\tSite readiness: June 2026\n•\tAssembly period: 3 months\n•\tHandover to active commissioning: September 2026", "items": [ { "id": "1", "additionalClassifications": [ { "scheme": "CPV", "id": "45000000", "description": "Construction work" }, { "scheme": "CPV", "id": "51000000", "description": "Installation services (except software)" } ], "deliveryAddresses": [ { "region": "UK", "country": "GB", "countryName": "United Kingdom" } ], "relatedLot": "1" } ], "mainProcurementCategory": "works", "aboveThreshold": false, "lots": [ { "id": "1", "suitability": { "sme": true }, "contractPeriod": { "startDate": "2026-06-01T00:00:00+01:00", "endDate": "2026-09-30T23:59:59+01:00" }, "status": "planning" } ], "status": "planning" }, "language": "en", "extensions": [ "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json", "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json", "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json" ] }, "versionedRelease": { "ocid": "ocds-h6vhtk-064afb", "initiationType": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "tender" } ], "parties": [ { "id": "GB-COH-03857752", "name": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED" } ], "identifier": { "scheme": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "GB-COH" } ], "id": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "03857752" } ] }, "additionalIdentifiers": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": [ { "scheme": "GB-PPON", "id": "PVXT-8784-YGNV" } ] } ], "address": { "streetAddress": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "Chadwick House Warrington Road" } ], "locality": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "Warrington" } ], "postalCode": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "WA3 6AE" } ], "country": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "GB" } ], "countryName": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "United Kingdom" } ], "region": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UKD61" } ] }, "contactPoint": { "email": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "procurement@uknnl.com" } ] }, "roles": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": [ "buyer" ] } ], "details": { "url": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "http://www.uknnl.com" } ], "classifications": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": [ { "scheme": "UK_CA_TYPE", "id": "publicAuthoritySubCentralGovernment", "description": "Public authority - sub-central government" } ] } ] } } ], "buyer": { "id": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "GB-COH-03857752" } ], "name": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED" } ] }, "planning": { "milestones": [ { "id": "engagement", "type": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "engagement" } ], "description": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "This exercise is an Expression of interest and is 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 service.\nCompany Name :United Kingdom National Nuclear Laboratory\nDelivery address: Springfields, Salwick, Preston, Lancashire.\nPR4 0XJ\nContact :Procurement@uknnl.com \nOpportunity to attend site for pre-tender engagement will be provided depending on EOI received" } ], "dueDate": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "2026-02-20T23:59:59Z" } ], "status": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "scheduled" } ] } ], "documents": [ { "id": "011320-2026", "documentType": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "marketEngagementNotice" } ], "noticeType": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UK2" } ], "description": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "Preliminary market engagement notice on Find a Tender" } ], "url": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "https://www.find-tender.service.gov.uk/Notice/011320-2026" } ], "datePublished": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "2026-02-09T11:57:54Z" } ], "format": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "text/html" } ] } ] }, "tender": { "id": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "ocds-h6vhtk-064afb" } ], "legalBasis": { "id": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "2023/54" } ], "scheme": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UKPGA" } ], "uri": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "https://www.legislation.gov.uk/ukpga/2023/54/contents" } ] }, "title": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "Construction and commission of modular rig" } ], "description": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UKNNL is seeking expressions of interest from suitably qualified and experienced contractors to support the assembly, installation verification, and inactive commissioning of a new modular experimental rig at the Preston facility.\nThe rig comprises a modular, three-storey structure incorporating multiple process and utility services. The appointed contractor will be responsible for mechanical assembly, installation checks, and inactive commissioning (without uranics) to enable active commissioning (with uranics) by others.\n2. Scope of Work\nThe contractor will be expected to undertake, as a minimum:\nMechanical Assembly\n•\tOffloading, positioning, and installation of prefabricated rig modules\n•\tMechanical assembly and integration of modules to form the complete structure\n•\tInstallation of access platforms, supports, and ancillary equipment\n•\tAlignment, fixing, and structural integrity checks\nInterface & Service Readiness\n•\tPreparation and verification of interfaces for:\no\tGas services\no\tExtraction/ventilation\no\tFluids\no\tElectrical supplies\n•\tCoordination with service installation contractors\n•\tEnsuring connection points are accessible, correctly labelled, and compliant with drawings/specifications\nElectrical, Controls and Instrumentation:\n•\tCross module connections\n•\tFinal install\n•\tConnection to Pilot Plant electrical distribution network\n1. Project Overview\nUKNNL is seeking expressions of interest from suitably qualified and experienced contractors to support the assembly, installation verification, and inactive commissioning of a new modular experimental rig at the Preston facility.\nThe rig comprises a modular, three-storey structure incorporating multiple process and utility services. The appointed contractor will be responsible for mechanical assembly, installation checks, and inactive commissioning (without uranics) to enable active commissioning (with uranics) by others.\n________________________________________\n2. Scope of Work\nThe contractor will be expected to undertake, as a minimum:\nMechanical Assembly\n•\tOffloading, positioning, and installation of prefabricated rig modules\n•\tMechanical assembly and integration of modules to form the complete structure\n•\tInstallation of access platforms, supports, and ancillary equipment\n•\tAlignment, fixing, and structural integrity checks\nInterface & Service Readiness\n•\tPreparation and verification of interfaces for:\no\tGas services\no\tExtraction/ventilation\no\tFluids\no\tElectrical supplies\n•\tCoordination with service installation contractors\n•\tEnsuring connection points are accessible, correctly labelled, and compliant with drawings/specifications\nElectrical, Controls and Instrumentation:\n•\tCross module connections\n•\tFinal install\n•\tConnection to Pilot Plant electrical distribution network\nInstallation Verification\n•\tCompletion of installation checks against drawings and specifications\n•\tQA/QC inspections and documentation\n•\tIdentification and resolution of defects or non-conformances\n•\tAs-built documentation and redlining\nInactive Commissioning\n•\tMechanical completion checks\n•\tPressure/leak testing (where applicable)\n•\tFunctional checks (non-energised / non-process)\n•\tSafety and compliance verification\n•\tHandover documentation and commissioning packs\n________________________________________\n3. Contractor Requirements\nInterested parties should demonstrate:\n•\tExperience assembling modular or multi-storey industrial/process rigs or plant\n•\tExperience working with multi-disciplinary service interfaces (gas, fluids, extraction, electrical)\n•\tCommissioning and mechanical completion experience\n•\tStrong health, safety, and quality management systems to comply with CDM regulations\n•\tAbility to work within an operational facility environment\n•\tRelevant certifications and competencies\n________________________________________\n4. Deliverables\nThe appointed contractor will be expected to provide:\n•\tMethod statements and risk assessments\n•\tInstallation and commissioning plans\n•\tInspection and test records\n•\tMechanical completion dossiers\n•\tAs-built documentation\n•\tHandover pack\n________________________________________\n5. Programme (Indicative)\n•\tSite readiness: June 2026\n•\tAssembly period: 3 months\n•\tHandover to active commissioning: September 2026" } ], "items": [ { "id": "1", "additionalClassifications": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": [ { "scheme": "CPV", "id": "45000000", "description": "Construction work" }, { "scheme": "CPV", "id": "51000000", "description": "Installation services (except software)" } ] } ], "deliveryAddresses": [ { "region": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "UK" } ], "country": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "GB" } ], "countryName": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "United Kingdom" } ] } ], "relatedLot": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "1" } ] } ], "mainProcurementCategory": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "works" } ], "aboveThreshold": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": false } ], "lots": [ { "id": "1", "suitability": { "sme": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": true } ] }, "contractPeriod": { "startDate": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "2026-06-01T00:00:00+01:00" } ], "endDate": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "2026-09-30T23:59:59+01:00" } ] }, "status": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "planning" } ] } ], "status": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "planning" } ] }, "language": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": "en" } ], "extensions": [ { "releaseID": "011320-2026", "releaseDate": "2026-02-09T11:57:54Z", "releaseTag": [ "planning" ], "value": [ "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_amendment_rationale_classifications_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_budget_breakdown_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_contract_completion_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_documentation_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_pagination_extension/master/extension.json", "https://raw.githubusercontent.com/open-contracting-extensions/ocds_suitability_extension/master/extension.json", "https://raw.githubusercontent.com/portaledcahn/ocds_Links_extension/main/extension.json", "https://raw.githubusercontent.com/cabinetoffice/ocds_uk_extension/main/extension.json" ] } ] } } ] }