{
    "uri": "https://www.find-tender.service.gov.uk/api/1.0/ocdsRecordPackages/ocds-h6vhtk-06e5ea",
    "publisher": {
        "name": "Cabinet Office",
        "scheme": "GB-GOR",
        "uid": "D2",
        "uri": "https://www.gov.uk/government/organisations/cabinet-office"
    },
    "publishedDate": "2026-10-09T14:43:08+01:00",
    "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-06e5ea"
    ],
    "records": [
        {
            "ocid": "ocds-h6vhtk-06e5ea",
            "releases": [
                {
                    "ocid": "ocds-h6vhtk-06e5ea",
                    "id": "078250-2026",
                    "tag": [
                        "planning"
                    ],
                    "date": "2026-08-17T16:19:46+01:00",
                    "initiationType": "tender",
                    "planning": {
                        "documents": [
                            {
                                "id": "078250-2026",
                                "documentType": "plannedProcurementNotice",
                                "noticeType": "UK3",
                                "description": "Planned procurement notice on Find a Tender",
                                "url": "https://www.find-tender.service.gov.uk/Notice/078250-2026",
                                "datePublished": "2026-08-17T16:19:46+01:00",
                                "format": "text/html"
                            }
                        ]
                    },
                    "parties": [
                        {
                            "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC",
                            "id": "GB-COH-02366977",
                            "identifier": {
                                "scheme": "GB-COH",
                                "id": "02366977"
                            },
                            "additionalIdentifiers": [
                                {
                                    "scheme": "GB-PPON",
                                    "id": "PHHJ-6513-BWZT"
                                }
                            ],
                            "address": {
                                "streetAddress": "1 - 3 Strand",
                                "locality": "London",
                                "postalCode": "WC2N 5EH",
                                "country": "GB",
                                "countryName": "United Kingdom",
                                "region": "UKI32"
                            },
                            "contactPoint": {
                                "name": "Alana  Walburn",
                                "email": "Alana.Walburn@nationalgrid.com"
                            },
                            "roles": [
                                "buyer"
                            ],
                            "details": {
                                "classifications": [
                                    {
                                        "scheme": "UK_CA_TYPE",
                                        "id": "privateUtility",
                                        "description": "Private utility"
                                    }
                                ]
                            }
                        }
                    ],
                    "buyer": {
                        "id": "GB-COH-02366977",
                        "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                    },
                    "tender": {
                        "id": "WS5688383780",
                        "legalBasis": {
                            "id": "2023/54",
                            "scheme": "UKPGA",
                            "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                        },
                        "title": "ISS Works at Walham and Pentir",
                        "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir.",
                        "status": "planned",
                        "items": [
                            {
                                "id": "1",
                                "additionalClassifications": [
                                    {
                                        "scheme": "CPV",
                                        "id": "32235000",
                                        "description": "Closed-circuit surveillance system"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "34928200",
                                        "description": "Fences"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "35120000",
                                        "description": "Surveillance and security systems and devices"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "44221300",
                                        "description": "Gates"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45220000",
                                        "description": "Engineering works and construction works"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45232220",
                                        "description": "Substation construction work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312100",
                                        "description": "Fire-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312200",
                                        "description": "Burglar-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45314000",
                                        "description": "Installation of telecommunications equipment"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45340000",
                                        "description": "Fencing, railing and safety equipment installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79415200",
                                        "description": "Design consultancy services"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79933000",
                                        "description": "Design support services"
                                    }
                                ],
                                "deliveryAddresses": [
                                    {
                                        "region": "UK",
                                        "country": "GB",
                                        "countryName": "United Kingdom"
                                    }
                                ],
                                "relatedLot": "1"
                            },
                            {
                                "id": "2",
                                "additionalClassifications": [
                                    {
                                        "scheme": "CPV",
                                        "id": "32235000",
                                        "description": "Closed-circuit surveillance system"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "34928200",
                                        "description": "Fences"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "35120000",
                                        "description": "Surveillance and security systems and devices"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "44221300",
                                        "description": "Gates"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45220000",
                                        "description": "Engineering works and construction works"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45232220",
                                        "description": "Substation construction work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312100",
                                        "description": "Fire-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312200",
                                        "description": "Burglar-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45314000",
                                        "description": "Installation of telecommunications equipment"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45340000",
                                        "description": "Fencing, railing and safety equipment installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79415200",
                                        "description": "Design consultancy services"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79933000",
                                        "description": "Design support services"
                                    }
                                ],
                                "deliveryAddresses": [
                                    {
                                        "region": "UK",
                                        "country": "GB",
                                        "countryName": "United Kingdom"
                                    }
                                ],
                                "relatedLot": "2"
                            }
                        ],
                        "procurementMethod": "selective",
                        "procurementMethodDetails": "Competitive flexible procedure",
                        "procedure": {
                            "features": "To be advised."
                        },
                        "mainProcurementCategory": "works",
                        "specialRegime": [
                            "utilities"
                        ],
                        "aboveThreshold": true,
                        "submissionTerms": {
                            "languages": [
                                "en"
                            ]
                        },
                        "expressionOfInterestDeadline": "2026-10-07T17:00:00+01:00",
                        "awardPeriod": {
                            "endDate": "2027-01-28T23:59:59Z"
                        },
                        "lots": [
                            {
                                "id": "1",
                                "title": "ISS Walham, Gloucestershire",
                                "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham.",
                                "status": "planned",
                                "contractPeriod": {
                                    "startDate": "2027-02-26T00:00:00Z",
                                    "endDate": "2028-02-25T23:59:59Z"
                                }
                            },
                            {
                                "id": "2",
                                "title": "ISS Pentir, Gwynedd",
                                "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir.",
                                "status": "planned",
                                "contractPeriod": {
                                    "startDate": "2027-02-26T00:00:00Z",
                                    "endDate": "2028-02-25T23:59:59Z"
                                }
                            }
                        ],
                        "documents": [
                            {
                                "id": "L-1",
                                "documentType": "biddingDocuments",
                                "description": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login",
                                "url": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                            }
                        ],
                        "communication": {
                            "futureNoticeDate": "2026-09-28T23:59:59+01:00"
                        }
                    },
                    "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"
                    ]
                },
                {
                    "id": "095732-2026",
                    "tag": [
                        "tender"
                    ],
                    "date": "2026-10-09T14:43:08+01:00",
                    "initiationType": "tender",
                    "ocid": "ocds-h6vhtk-06e5ea",
                    "parties": [
                        {
                            "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC",
                            "id": "GB-COH-02366977",
                            "identifier": {
                                "scheme": "GB-COH",
                                "id": "02366977"
                            },
                            "additionalIdentifiers": [
                                {
                                    "scheme": "GB-PPON",
                                    "id": "PHHJ-6513-BWZT"
                                }
                            ],
                            "address": {
                                "streetAddress": "1 - 3 Strand",
                                "locality": "London",
                                "postalCode": "WC2N 5EH",
                                "country": "GB",
                                "countryName": "United Kingdom",
                                "region": "UKI32"
                            },
                            "contactPoint": {
                                "email": "Alana.Walburn@nationalgrid.com"
                            },
                            "roles": [
                                "buyer"
                            ],
                            "details": {
                                "classifications": [
                                    {
                                        "scheme": "UK_CA_TYPE",
                                        "id": "privateUtility",
                                        "description": "Private utility"
                                    }
                                ]
                            }
                        }
                    ],
                    "buyer": {
                        "id": "GB-COH-02366977",
                        "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                    },
                    "tender": {
                        "id": "WS5688383780",
                        "legalBasis": {
                            "id": "2023/54",
                            "scheme": "UKPGA",
                            "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                        },
                        "title": "Integrated Security Solutions (ISS) Works at Walham and Pentir",
                        "description": "National Grid Electricity Transmission Plc is seeking experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir. The requirement is divided into two separate Lots: Lot 1 (Walham) and Lot 2 (Pentir). Suppliers may submit tenders for one or both Lots; however, no supplier will be awarded more than one Lot.\nFurther details in relation to the scope are set out in the Instructions to Tenderers.",
                        "status": "active",
                        "items": [
                            {
                                "id": "1",
                                "additionalClassifications": [
                                    {
                                        "scheme": "CPV",
                                        "id": "32235000",
                                        "description": "Closed-circuit surveillance system"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "34928200",
                                        "description": "Fences"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "35120000",
                                        "description": "Surveillance and security systems and devices"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "44221300",
                                        "description": "Gates"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45220000",
                                        "description": "Engineering works and construction works"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45232220",
                                        "description": "Substation construction work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312100",
                                        "description": "Fire-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312200",
                                        "description": "Burglar-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45314000",
                                        "description": "Installation of telecommunications equipment"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45340000",
                                        "description": "Fencing, railing and safety equipment installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79415200",
                                        "description": "Design consultancy services"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79933000",
                                        "description": "Design support services"
                                    }
                                ],
                                "deliveryAddresses": [
                                    {
                                        "region": "UKK",
                                        "country": "GB",
                                        "countryName": "United Kingdom"
                                    }
                                ],
                                "relatedLot": "1"
                            },
                            {
                                "id": "2",
                                "additionalClassifications": [
                                    {
                                        "scheme": "CPV",
                                        "id": "32235000",
                                        "description": "Closed-circuit surveillance system"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "34928200",
                                        "description": "Fences"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "35120000",
                                        "description": "Surveillance and security systems and devices"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "44221300",
                                        "description": "Gates"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45220000",
                                        "description": "Engineering works and construction works"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45232220",
                                        "description": "Substation construction work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312100",
                                        "description": "Fire-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45312200",
                                        "description": "Burglar-alarm system installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45314000",
                                        "description": "Installation of telecommunications equipment"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "45340000",
                                        "description": "Fencing, railing and safety equipment installation work"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79415200",
                                        "description": "Design consultancy services"
                                    },
                                    {
                                        "scheme": "CPV",
                                        "id": "79933000",
                                        "description": "Design support services"
                                    }
                                ],
                                "deliveryAddresses": [
                                    {
                                        "region": "UKL",
                                        "country": "GB",
                                        "countryName": "United Kingdom"
                                    }
                                ],
                                "relatedLot": "2"
                            }
                        ],
                        "value": {
                            "amountGross": 25200000,
                            "amount": 21000000,
                            "currency": "GBP"
                        },
                        "procurementMethod": "selective",
                        "procurementMethodDetails": "Competitive flexible procedure",
                        "procedure": {
                            "features": "National Grid intends to conduct a Competitive Flexible Procedure with a multi-stage process. Suppliers are requested to register their interest to enable secure onboarding to National Grid's Ariba sourcing platform. Following onboarding, National Grid will issue the confidential procurement documents through Ariba, This will be a qualification questionnaire and associated documents.\n Suppliers must submit a completed request to participate by the deadline stated in the notice. National Grid will assess responses against the published conditions of participation and, where applicable, the published criteria for limiting supplier numbers. Suppliers selected to proceed will then be invited to submit tenders through Ariba. \nThe multi-stage includes:\nStage 1: Pre-qualification \nStage 2: Request for Proposal (RFP) including evaluation, optional negotiation and resubmission\nFurther details are included in the Instructions to Tenderers and associated procurement documents which will be issued via ARIBA."
                        },
                        "mainProcurementCategory": "works",
                        "specialRegime": [
                            "utilities"
                        ],
                        "aboveThreshold": true,
                        "submissionMethodDetails": "Suppliers wishing to participate in this opportunity should complete the Expression of Interest link.\nSuppliers are requested to register their interest 16th October 2026 to enable Ariba onboarding and secure access to the documents. Registration is an administrative access step and is not an evaluated stage. Suppliers that miss this date should contact National Grid promptly. Access may be facilitated where reasonably practicable before the submission deadline.\nNational Grid Procurement will issue the tender documents via SAP Ariba (https://service.ariba.com) to those suppliers that have expressed their interest in response to this notice.",
                        "submissionTerms": {
                            "electronicSubmissionPolicy": "allowed",
                            "languages": [
                                "en"
                            ]
                        },
                        "expressionOfInterestDeadline": "2026-10-19T23:59:59+01:00",
                        "awardPeriod": {
                            "endDate": "2027-02-01T23:59:59Z"
                        },
                        "lots": [
                            {
                                "id": "1",
                                "title": "Lot 1. ISS Walham, Gloucestershire",
                                "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham.",
                                "status": "active",
                                "value": {
                                    "amountGross": 10800000,
                                    "amount": 9000000,
                                    "currency": "GBP"
                                },
                                "awardCriteria": {
                                    "criteria": [
                                        {
                                            "type": "quality",
                                            "name": "Technical",
                                            "numbers": [
                                                {
                                                    "number": 75,
                                                    "weight": "percentageExact"
                                                }
                                            ]
                                        },
                                        {
                                            "type": "cost",
                                            "name": "Commercial",
                                            "numbers": [
                                                {
                                                    "number": 25,
                                                    "weight": "percentageExact"
                                                }
                                            ]
                                        }
                                    ]
                                },
                                "selectionCriteria": {
                                    "criteria": [
                                        {
                                            "type": "economic",
                                            "description": "Suppliers may be required to demonstrate that they have the legal and financial capacity to perform the contract. This will include demonstrating sufficient financial standing, taking account of the nature, complexity, value, duration and risk profile of the contract, and an ability to meet all applicable legal, statutory and regulatory requirements relevant to its performance. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA."
                                        },
                                        {
                                            "type": "technical",
                                            "description": "Suppliers will be required to demonstrate the technical ability, relevant experience, competent resources, systems and organisational capability necessary to perform the contract. This includes meeting National Grid's applicable standard supplier requirements and all project-specific technical requirements. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA. References to particular qualifications, accreditations or standards include permitted equivalents."
                                        },
                                        {
                                            "description": "There is no maximum number of suppliers invited to participate in Stage 1: Prequalification.\nThere will be a maximum number of suppliers invited to Stage 2: Request to Participate. The criteria used to select suppliers will be set out in the procurement documentation issued via Ariba. This stage will include additional pass/fail questions, followed by more detailed scored questions that will be used to assess and rank suppliers. Only the highest-ranking suppliers, up to the specified maximum number, will be invited to progress.",
                                            "forReduction": true
                                        }
                                    ]
                                },
                                "contractPeriod": {
                                    "startDate": "2027-05-17T00:00:00+01:00",
                                    "endDate": "2028-01-14T23:59:59Z"
                                },
                                "hasOptions": true,
                                "options": {
                                    "description": "The Contract is based on the NEC4 ECC form of contract, which includes the right for the Project Manager to issue instructions to the Contractor which may have the impact of changing Key Dates/Completion Dates/the total of the Prices. Not all such instructions constitute modifications within the meaning set out in the Procurement Act 2023, but National Grid note the following Project Manager's instructions which may, depending on their content, give rise to modifications under the Procurement Act 2023 are permitted modifications (para 11 Schedule 8): \n•\tA Project Manager's instruction changing the Scope/ or the boundaries of the Site (clause 14.3, 60.1(1));\n•\tA Project Manager's instruction to omit any part(s) of the Scope (clause Z23).\nThe Client may also in accordance with ECI clause X22 i) issue a notice to proceed instructing the Contractor to complete Stage 2 of the works or b) issue an instruction that a notice to proceed to Stage 2 will not be issued and that the contract will terminate/ Stage 2 of the works will be removed from the Scope.\nThis procurement is for the appointment of a contractor under NEC4 Engineering and Construction Contract Option C with Secondary Option X22 Early Contractor Involvement. The successful Contractor will initially be appointed to undertake Stage One ECI activities including design development, buildability assessments, risk reduction, programme optimisation and preparation of an open-book Target Cost.\nFollowing completion of Stage One the Client will determine whether to issue a notice to proceed for Stage Two construction activities. Progression to Stage Two is subject to agreement of the Target Cost, satisfactory risk reduction outcomes, business case approval and funding confirmation. If a notice that the works will not proceed to Stage Two is issued, the contract will terminate/Stage Two of the works will be removed from the Scope."
                                }
                            },
                            {
                                "id": "2",
                                "title": "Lot 2. ISS Pentir, Gwynedd",
                                "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir.",
                                "status": "active",
                                "value": {
                                    "amountGross": 14400000,
                                    "amount": 12000000,
                                    "currency": "GBP"
                                },
                                "awardCriteria": {
                                    "criteria": [
                                        {
                                            "type": "quality",
                                            "name": "Technical",
                                            "numbers": [
                                                {
                                                    "number": 75,
                                                    "weight": "percentageExact"
                                                }
                                            ]
                                        },
                                        {
                                            "type": "cost",
                                            "name": "Commercial",
                                            "numbers": [
                                                {
                                                    "number": 25,
                                                    "weight": "percentageExact"
                                                }
                                            ]
                                        }
                                    ]
                                },
                                "selectionCriteria": {
                                    "criteria": [
                                        {
                                            "type": "economic",
                                            "description": "Suppliers may be required to demonstrate that they have the legal and financial capacity to perform the contract. This will include demonstrating sufficient financial standing, taking account of the nature, complexity, value, duration and risk profile of the contract, and an ability to meet all applicable legal, statutory and regulatory requirements relevant to its performance. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA."
                                        },
                                        {
                                            "type": "technical",
                                            "description": "Suppliers will be required to demonstrate the technical ability, relevant experience, competent resources, systems and organisational capability necessary to perform the contract. This includes meeting National Grid's applicable standard supplier requirements and all project-specific technical requirements. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA. References to particular qualifications, accreditations or standards include permitted equivalents."
                                        },
                                        {
                                            "description": "There is no maximum number of suppliers invited to participate in Stage 1: Prequalification.\nThere will be a maximum number of suppliers invited to Stage 2: Request to Participate. The criteria used to select suppliers will be set out in the procurement documentation issued via Ariba. This stage will include additional pass/fail questions, followed by more detailed scored questions that will be used to assess and rank suppliers. Only the highest-ranking suppliers, up to the specified maximum number, will be invited to progress.",
                                            "forReduction": true
                                        }
                                    ]
                                },
                                "contractPeriod": {
                                    "startDate": "2027-05-17T00:00:00+01:00",
                                    "endDate": "2028-01-14T23:59:59Z"
                                },
                                "hasOptions": true,
                                "options": {
                                    "description": "The Contract is based on the NEC4 ECC form of contract, which includes the right for the Project Manager to issue instructions to the Contractor which may have the impact of changing Key Dates/Completion Dates/the total of the Prices. Not all such instructions constitute modifications within the meaning set out in the Procurement Act 2023, but National Grid note the following Project Manager's instructions which may, depending on their content, give rise to modifications under the Procurement Act 2023 are permitted modifications (para 11 Schedule 8): \n•\tA Project Manager's instruction changing the Scope/ or the boundaries of the Site (clause 14.3, 60.1(1));\n•\tA Project Manager's instruction to omit any part(s) of the Scope (clause Z23).\nThe Client may also in accordance with ECI clause X22 i) issue a notice to proceed instructing the Contractor to complete Stage 2 of the works or b) issue an instruction that a notice to proceed to Stage 2 will not be issued and that the contract will terminate/ Stage 2 of the works will be removed from the Scope.\nThis procurement is for the appointment of a contractor under NEC4 Engineering and Construction Contract Option C with Secondary Option X22 Early Contractor Involvement. The successful Contractor will initially be appointed to undertake Stage One ECI activities including design development, buildability assessments, risk reduction, programme optimisation and preparation of an open-book Target Cost.\nFollowing completion of Stage One the Client will determine whether to issue a notice to proceed for Stage Two construction activities. Progression to Stage Two is subject to agreement of the Target Cost, satisfactory risk reduction outcomes, business case approval and funding confirmation. If a notice that the works will not proceed to Stage Two is issued, the contract will terminate/Stage Two of the works will be removed from the Scope."
                                }
                            }
                        ],
                        "lotDetails": {
                            "maximumLotsAwardedPerSupplier": 1,
                            "awardCriteriaDetails": "Tenderers may submit bids for one or both Lots; however, a Tenderer may only be awarded a maximum of one Lot. Further details of the Lot award methodology are provided within the Instructions to Tenderers."
                        },
                        "documents": [
                            {
                                "id": "conflictOfInterest",
                                "documentType": "conflictOfInterest",
                                "description": "Not published"
                            },
                            {
                                "id": "L-1",
                                "documentType": "biddingDocuments",
                                "description": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nFollowing receipt of expressions of interest, an Ariba profile will be created and a questionnaire issued via Ariba to conclude onboarding.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login",
                                "url": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                            },
                            {
                                "id": "095732-2026",
                                "documentType": "tenderNotice",
                                "noticeType": "UK4",
                                "description": "Tender notice on Find a Tender",
                                "url": "https://www.find-tender.service.gov.uk/Notice/095732-2026",
                                "datePublished": "2026-10-09T14:43:08+01:00",
                                "format": "text/html"
                            }
                        ]
                    },
                    "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-06e5ea-2026-10-09T14:43:08+01:00",
                "date": "2026-10-09T14:43:08+01:00",
                "ocid": "ocds-h6vhtk-06e5ea",
                "initiationType": "tender",
                "planning": {
                    "documents": [
                        {
                            "id": "078250-2026",
                            "documentType": "plannedProcurementNotice",
                            "noticeType": "UK3",
                            "description": "Planned procurement notice on Find a Tender",
                            "url": "https://www.find-tender.service.gov.uk/Notice/078250-2026",
                            "datePublished": "2026-08-17T16:19:46+01:00",
                            "format": "text/html"
                        }
                    ]
                },
                "parties": [
                    {
                        "id": "GB-COH-02366977",
                        "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC",
                        "identifier": {
                            "scheme": "GB-COH",
                            "id": "02366977"
                        },
                        "additionalIdentifiers": [
                            {
                                "scheme": "GB-PPON",
                                "id": "PHHJ-6513-BWZT"
                            }
                        ],
                        "address": {
                            "streetAddress": "1 - 3 Strand",
                            "locality": "London",
                            "postalCode": "WC2N 5EH",
                            "country": "GB",
                            "countryName": "United Kingdom",
                            "region": "UKI32"
                        },
                        "contactPoint": {
                            "name": "Alana  Walburn",
                            "email": "Alana.Walburn@nationalgrid.com"
                        },
                        "roles": [
                            "buyer"
                        ],
                        "details": {
                            "classifications": [
                                {
                                    "scheme": "UK_CA_TYPE",
                                    "id": "privateUtility",
                                    "description": "Private utility"
                                }
                            ]
                        }
                    }
                ],
                "buyer": {
                    "id": "GB-COH-02366977",
                    "name": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                },
                "tender": {
                    "id": "WS5688383780",
                    "legalBasis": {
                        "id": "2023/54",
                        "scheme": "UKPGA",
                        "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                    },
                    "title": "Integrated Security Solutions (ISS) Works at Walham and Pentir",
                    "description": "National Grid Electricity Transmission Plc is seeking experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir. The requirement is divided into two separate Lots: Lot 1 (Walham) and Lot 2 (Pentir). Suppliers may submit tenders for one or both Lots; however, no supplier will be awarded more than one Lot.\nFurther details in relation to the scope are set out in the Instructions to Tenderers.",
                    "status": "active",
                    "items": [
                        {
                            "id": "1",
                            "additionalClassifications": [
                                {
                                    "scheme": "CPV",
                                    "id": "32235000",
                                    "description": "Closed-circuit surveillance system"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "34928200",
                                    "description": "Fences"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "35120000",
                                    "description": "Surveillance and security systems and devices"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "44221300",
                                    "description": "Gates"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45220000",
                                    "description": "Engineering works and construction works"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45232220",
                                    "description": "Substation construction work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312100",
                                    "description": "Fire-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312200",
                                    "description": "Burglar-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45314000",
                                    "description": "Installation of telecommunications equipment"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45340000",
                                    "description": "Fencing, railing and safety equipment installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79415200",
                                    "description": "Design consultancy services"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79933000",
                                    "description": "Design support services"
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": "UK",
                                    "country": "GB",
                                    "countryName": "United Kingdom"
                                },
                                {
                                    "region": "UKK",
                                    "country": "GB",
                                    "countryName": "United Kingdom"
                                }
                            ],
                            "relatedLot": "1"
                        },
                        {
                            "id": "2",
                            "additionalClassifications": [
                                {
                                    "scheme": "CPV",
                                    "id": "32235000",
                                    "description": "Closed-circuit surveillance system"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "34928200",
                                    "description": "Fences"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "35120000",
                                    "description": "Surveillance and security systems and devices"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "44221300",
                                    "description": "Gates"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45220000",
                                    "description": "Engineering works and construction works"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45232220",
                                    "description": "Substation construction work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312100",
                                    "description": "Fire-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45312200",
                                    "description": "Burglar-alarm system installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45314000",
                                    "description": "Installation of telecommunications equipment"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "45340000",
                                    "description": "Fencing, railing and safety equipment installation work"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79415200",
                                    "description": "Design consultancy services"
                                },
                                {
                                    "scheme": "CPV",
                                    "id": "79933000",
                                    "description": "Design support services"
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": "UK",
                                    "country": "GB",
                                    "countryName": "United Kingdom"
                                },
                                {
                                    "region": "UKL",
                                    "country": "GB",
                                    "countryName": "United Kingdom"
                                }
                            ],
                            "relatedLot": "2"
                        }
                    ],
                    "procurementMethod": "selective",
                    "procurementMethodDetails": "Competitive flexible procedure",
                    "procedure": {
                        "features": "National Grid intends to conduct a Competitive Flexible Procedure with a multi-stage process. Suppliers are requested to register their interest to enable secure onboarding to National Grid's Ariba sourcing platform. Following onboarding, National Grid will issue the confidential procurement documents through Ariba, This will be a qualification questionnaire and associated documents.\n Suppliers must submit a completed request to participate by the deadline stated in the notice. National Grid will assess responses against the published conditions of participation and, where applicable, the published criteria for limiting supplier numbers. Suppliers selected to proceed will then be invited to submit tenders through Ariba. \nThe multi-stage includes:\nStage 1: Pre-qualification \nStage 2: Request for Proposal (RFP) including evaluation, optional negotiation and resubmission\nFurther details are included in the Instructions to Tenderers and associated procurement documents which will be issued via ARIBA."
                    },
                    "mainProcurementCategory": "works",
                    "specialRegime": [
                        "utilities"
                    ],
                    "aboveThreshold": true,
                    "submissionTerms": {
                        "languages": [
                            "en"
                        ],
                        "electronicSubmissionPolicy": "allowed"
                    },
                    "expressionOfInterestDeadline": "2026-10-19T23:59:59+01:00",
                    "awardPeriod": {
                        "endDate": "2027-02-01T23:59:59Z"
                    },
                    "lots": [
                        {
                            "id": "1",
                            "title": "Lot 1. ISS Walham, Gloucestershire",
                            "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham.",
                            "status": "active",
                            "contractPeriod": {
                                "startDate": "2027-05-17T00:00:00+01:00",
                                "endDate": "2028-01-14T23:59:59Z"
                            },
                            "value": {
                                "amountGross": 10800000,
                                "amount": 9000000,
                                "currency": "GBP"
                            },
                            "awardCriteria": {
                                "criteria": [
                                    {
                                        "type": "quality",
                                        "name": "Technical",
                                        "numbers": [
                                            {
                                                "number": 75,
                                                "weight": "percentageExact"
                                            }
                                        ]
                                    },
                                    {
                                        "type": "cost",
                                        "name": "Commercial",
                                        "numbers": [
                                            {
                                                "number": 25,
                                                "weight": "percentageExact"
                                            }
                                        ]
                                    }
                                ]
                            },
                            "selectionCriteria": {
                                "criteria": [
                                    {
                                        "type": "economic",
                                        "description": "Suppliers may be required to demonstrate that they have the legal and financial capacity to perform the contract. This will include demonstrating sufficient financial standing, taking account of the nature, complexity, value, duration and risk profile of the contract, and an ability to meet all applicable legal, statutory and regulatory requirements relevant to its performance. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA."
                                    },
                                    {
                                        "type": "technical",
                                        "description": "Suppliers will be required to demonstrate the technical ability, relevant experience, competent resources, systems and organisational capability necessary to perform the contract. This includes meeting National Grid's applicable standard supplier requirements and all project-specific technical requirements. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA. References to particular qualifications, accreditations or standards include permitted equivalents."
                                    },
                                    {
                                        "description": "There is no maximum number of suppliers invited to participate in Stage 1: Prequalification.\nThere will be a maximum number of suppliers invited to Stage 2: Request to Participate. The criteria used to select suppliers will be set out in the procurement documentation issued via Ariba. This stage will include additional pass/fail questions, followed by more detailed scored questions that will be used to assess and rank suppliers. Only the highest-ranking suppliers, up to the specified maximum number, will be invited to progress.",
                                        "forReduction": true
                                    }
                                ]
                            },
                            "hasOptions": true,
                            "options": {
                                "description": "The Contract is based on the NEC4 ECC form of contract, which includes the right for the Project Manager to issue instructions to the Contractor which may have the impact of changing Key Dates/Completion Dates/the total of the Prices. Not all such instructions constitute modifications within the meaning set out in the Procurement Act 2023, but National Grid note the following Project Manager's instructions which may, depending on their content, give rise to modifications under the Procurement Act 2023 are permitted modifications (para 11 Schedule 8): \n•\tA Project Manager's instruction changing the Scope/ or the boundaries of the Site (clause 14.3, 60.1(1));\n•\tA Project Manager's instruction to omit any part(s) of the Scope (clause Z23).\nThe Client may also in accordance with ECI clause X22 i) issue a notice to proceed instructing the Contractor to complete Stage 2 of the works or b) issue an instruction that a notice to proceed to Stage 2 will not be issued and that the contract will terminate/ Stage 2 of the works will be removed from the Scope.\nThis procurement is for the appointment of a contractor under NEC4 Engineering and Construction Contract Option C with Secondary Option X22 Early Contractor Involvement. The successful Contractor will initially be appointed to undertake Stage One ECI activities including design development, buildability assessments, risk reduction, programme optimisation and preparation of an open-book Target Cost.\nFollowing completion of Stage One the Client will determine whether to issue a notice to proceed for Stage Two construction activities. Progression to Stage Two is subject to agreement of the Target Cost, satisfactory risk reduction outcomes, business case approval and funding confirmation. If a notice that the works will not proceed to Stage Two is issued, the contract will terminate/Stage Two of the works will be removed from the Scope."
                            }
                        },
                        {
                            "id": "2",
                            "title": "Lot 2. ISS Pentir, Gwynedd",
                            "description": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir.",
                            "status": "active",
                            "contractPeriod": {
                                "startDate": "2027-05-17T00:00:00+01:00",
                                "endDate": "2028-01-14T23:59:59Z"
                            },
                            "value": {
                                "amountGross": 14400000,
                                "amount": 12000000,
                                "currency": "GBP"
                            },
                            "awardCriteria": {
                                "criteria": [
                                    {
                                        "type": "quality",
                                        "name": "Technical",
                                        "numbers": [
                                            {
                                                "number": 75,
                                                "weight": "percentageExact"
                                            }
                                        ]
                                    },
                                    {
                                        "type": "cost",
                                        "name": "Commercial",
                                        "numbers": [
                                            {
                                                "number": 25,
                                                "weight": "percentageExact"
                                            }
                                        ]
                                    }
                                ]
                            },
                            "selectionCriteria": {
                                "criteria": [
                                    {
                                        "type": "economic",
                                        "description": "Suppliers may be required to demonstrate that they have the legal and financial capacity to perform the contract. This will include demonstrating sufficient financial standing, taking account of the nature, complexity, value, duration and risk profile of the contract, and an ability to meet all applicable legal, statutory and regulatory requirements relevant to its performance. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA."
                                    },
                                    {
                                        "type": "technical",
                                        "description": "Suppliers will be required to demonstrate the technical ability, relevant experience, competent resources, systems and organisational capability necessary to perform the contract. This includes meeting National Grid's applicable standard supplier requirements and all project-specific technical requirements. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA. References to particular qualifications, accreditations or standards include permitted equivalents."
                                    },
                                    {
                                        "description": "There is no maximum number of suppliers invited to participate in Stage 1: Prequalification.\nThere will be a maximum number of suppliers invited to Stage 2: Request to Participate. The criteria used to select suppliers will be set out in the procurement documentation issued via Ariba. This stage will include additional pass/fail questions, followed by more detailed scored questions that will be used to assess and rank suppliers. Only the highest-ranking suppliers, up to the specified maximum number, will be invited to progress.",
                                        "forReduction": true
                                    }
                                ]
                            },
                            "hasOptions": true,
                            "options": {
                                "description": "The Contract is based on the NEC4 ECC form of contract, which includes the right for the Project Manager to issue instructions to the Contractor which may have the impact of changing Key Dates/Completion Dates/the total of the Prices. Not all such instructions constitute modifications within the meaning set out in the Procurement Act 2023, but National Grid note the following Project Manager's instructions which may, depending on their content, give rise to modifications under the Procurement Act 2023 are permitted modifications (para 11 Schedule 8): \n•\tA Project Manager's instruction changing the Scope/ or the boundaries of the Site (clause 14.3, 60.1(1));\n•\tA Project Manager's instruction to omit any part(s) of the Scope (clause Z23).\nThe Client may also in accordance with ECI clause X22 i) issue a notice to proceed instructing the Contractor to complete Stage 2 of the works or b) issue an instruction that a notice to proceed to Stage 2 will not be issued and that the contract will terminate/ Stage 2 of the works will be removed from the Scope.\nThis procurement is for the appointment of a contractor under NEC4 Engineering and Construction Contract Option C with Secondary Option X22 Early Contractor Involvement. The successful Contractor will initially be appointed to undertake Stage One ECI activities including design development, buildability assessments, risk reduction, programme optimisation and preparation of an open-book Target Cost.\nFollowing completion of Stage One the Client will determine whether to issue a notice to proceed for Stage Two construction activities. Progression to Stage Two is subject to agreement of the Target Cost, satisfactory risk reduction outcomes, business case approval and funding confirmation. If a notice that the works will not proceed to Stage Two is issued, the contract will terminate/Stage Two of the works will be removed from the Scope."
                            }
                        }
                    ],
                    "documents": [
                        {
                            "id": "L-1",
                            "documentType": "biddingDocuments",
                            "description": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nFollowing receipt of expressions of interest, an Ariba profile will be created and a questionnaire issued via Ariba to conclude onboarding.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login",
                            "url": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                        },
                        {
                            "id": "conflictOfInterest",
                            "documentType": "conflictOfInterest",
                            "description": "Not published"
                        },
                        {
                            "id": "095732-2026",
                            "documentType": "tenderNotice",
                            "noticeType": "UK4",
                            "description": "Tender notice on Find a Tender",
                            "url": "https://www.find-tender.service.gov.uk/Notice/095732-2026",
                            "datePublished": "2026-10-09T14:43:08+01:00",
                            "format": "text/html"
                        }
                    ],
                    "communication": {
                        "futureNoticeDate": "2026-09-28T23:59:59+01:00"
                    },
                    "value": {
                        "amountGross": 25200000,
                        "amount": 21000000,
                        "currency": "GBP"
                    },
                    "submissionMethodDetails": "Suppliers wishing to participate in this opportunity should complete the Expression of Interest link.\nSuppliers are requested to register their interest 16th October 2026 to enable Ariba onboarding and secure access to the documents. Registration is an administrative access step and is not an evaluated stage. Suppliers that miss this date should contact National Grid promptly. Access may be facilitated where reasonably practicable before the submission deadline.\nNational Grid Procurement will issue the tender documents via SAP Ariba (https://service.ariba.com) to those suppliers that have expressed their interest in response to this notice.",
                    "lotDetails": {
                        "maximumLotsAwardedPerSupplier": 1,
                        "awardCriteriaDetails": "Tenderers may submit bids for one or both Lots; however, a Tenderer may only be awarded a maximum of one Lot. Further details of the Lot award methodology are provided within the Instructions to Tenderers."
                    }
                },
                "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-06e5ea",
                "initiationType": [
                    {
                        "releaseID": "078250-2026",
                        "releaseDate": "2026-08-17T16:19:46+01:00",
                        "releaseTag": [
                            "planning"
                        ],
                        "value": "tender"
                    }
                ],
                "planning": {
                    "documents": [
                        {
                            "id": "078250-2026",
                            "documentType": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "plannedProcurementNotice"
                                }
                            ],
                            "noticeType": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "UK3"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Planned procurement notice on Find a Tender"
                                }
                            ],
                            "url": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "https://www.find-tender.service.gov.uk/Notice/078250-2026"
                                }
                            ],
                            "datePublished": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "2026-08-17T16:19:46+01:00"
                                }
                            ],
                            "format": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "text/html"
                                }
                            ]
                        }
                    ]
                },
                "parties": [
                    {
                        "id": "GB-COH-02366977",
                        "name": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                            }
                        ],
                        "identifier": {
                            "scheme": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "GB-COH"
                                }
                            ],
                            "id": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "02366977"
                                }
                            ]
                        },
                        "additionalIdentifiers": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": [
                                    {
                                        "scheme": "GB-PPON",
                                        "id": "PHHJ-6513-BWZT"
                                    }
                                ]
                            }
                        ],
                        "address": {
                            "streetAddress": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "1 - 3 Strand"
                                }
                            ],
                            "locality": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "London"
                                }
                            ],
                            "postalCode": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "WC2N 5EH"
                                }
                            ],
                            "country": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "GB"
                                }
                            ],
                            "countryName": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "United Kingdom"
                                }
                            ],
                            "region": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "UKI32"
                                }
                            ]
                        },
                        "contactPoint": {
                            "name": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Alana  Walburn"
                                }
                            ],
                            "email": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Alana.Walburn@nationalgrid.com"
                                }
                            ]
                        },
                        "roles": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": [
                                    "buyer"
                                ]
                            }
                        ],
                        "details": {
                            "classifications": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": [
                                        {
                                            "scheme": "UK_CA_TYPE",
                                            "id": "privateUtility",
                                            "description": "Private utility"
                                        }
                                    ]
                                }
                            ]
                        }
                    }
                ],
                "buyer": {
                    "id": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "GB-COH-02366977"
                        }
                    ],
                    "name": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "NATIONAL GRID ELECTRICITY TRANSMISSION PLC"
                        }
                    ]
                },
                "tender": {
                    "id": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "WS5688383780"
                        }
                    ],
                    "legalBasis": {
                        "id": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "2023/54"
                            }
                        ],
                        "scheme": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "UKPGA"
                            }
                        ],
                        "uri": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
                            }
                        ]
                    },
                    "title": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "ISS Works at Walham and Pentir"
                        },
                        {
                            "releaseID": "095732-2026",
                            "releaseDate": "2026-10-09T14:43:08+01:00",
                            "releaseTag": [
                                "tender"
                            ],
                            "value": "Integrated Security Solutions (ISS) Works at Walham and Pentir"
                        }
                    ],
                    "description": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir."
                        },
                        {
                            "releaseID": "095732-2026",
                            "releaseDate": "2026-10-09T14:43:08+01:00",
                            "releaseTag": [
                                "tender"
                            ],
                            "value": "National Grid Electricity Transmission Plc is seeking experienced and suitably qualified suppliers capable of delivering a fully integrated security solution for critical national infrastructure sites at Walham and Pentir. The requirement is divided into two separate Lots: Lot 1 (Walham) and Lot 2 (Pentir). Suppliers may submit tenders for one or both Lots; however, no supplier will be awarded more than one Lot.\nFurther details in relation to the scope are set out in the Instructions to Tenderers."
                        }
                    ],
                    "status": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "planned"
                        },
                        {
                            "releaseID": "095732-2026",
                            "releaseDate": "2026-10-09T14:43:08+01:00",
                            "releaseTag": [
                                "tender"
                            ],
                            "value": "active"
                        }
                    ],
                    "items": [
                        {
                            "id": "1",
                            "additionalClassifications": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": [
                                        {
                                            "scheme": "CPV",
                                            "id": "32235000",
                                            "description": "Closed-circuit surveillance system"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "34928200",
                                            "description": "Fences"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "35120000",
                                            "description": "Surveillance and security systems and devices"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "44221300",
                                            "description": "Gates"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45220000",
                                            "description": "Engineering works and construction works"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45232220",
                                            "description": "Substation construction work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312100",
                                            "description": "Fire-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312200",
                                            "description": "Burglar-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45314000",
                                            "description": "Installation of telecommunications equipment"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45340000",
                                            "description": "Fencing, railing and safety equipment installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79415200",
                                            "description": "Design consultancy services"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79933000",
                                            "description": "Design support services"
                                        }
                                    ]
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "UK"
                                        }
                                    ],
                                    "country": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "GB"
                                        }
                                    ],
                                    "countryName": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "United Kingdom"
                                        }
                                    ]
                                },
                                {
                                    "region": [
                                        {
                                            "releaseID": "095732-2026",
                                            "releaseDate": "2026-10-09T14:43:08+01:00",
                                            "releaseTag": [
                                                "tender"
                                            ],
                                            "value": "UKK"
                                        }
                                    ],
                                    "country": [
                                        {
                                            "releaseID": "095732-2026",
                                            "releaseDate": "2026-10-09T14:43:08+01:00",
                                            "releaseTag": [
                                                "tender"
                                            ],
                                            "value": "GB"
                                        }
                                    ],
                                    "countryName": [
                                        {
                                            "releaseID": "095732-2026",
                                            "releaseDate": "2026-10-09T14:43:08+01:00",
                                            "releaseTag": [
                                                "tender"
                                            ],
                                            "value": "United Kingdom"
                                        }
                                    ]
                                }
                            ],
                            "relatedLot": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "1"
                                }
                            ]
                        },
                        {
                            "id": "2",
                            "additionalClassifications": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": [
                                        {
                                            "scheme": "CPV",
                                            "id": "32235000",
                                            "description": "Closed-circuit surveillance system"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "34928200",
                                            "description": "Fences"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "35120000",
                                            "description": "Surveillance and security systems and devices"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "44221300",
                                            "description": "Gates"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45220000",
                                            "description": "Engineering works and construction works"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45232220",
                                            "description": "Substation construction work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312100",
                                            "description": "Fire-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45312200",
                                            "description": "Burglar-alarm system installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45314000",
                                            "description": "Installation of telecommunications equipment"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "45340000",
                                            "description": "Fencing, railing and safety equipment installation work"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79415200",
                                            "description": "Design consultancy services"
                                        },
                                        {
                                            "scheme": "CPV",
                                            "id": "79933000",
                                            "description": "Design support services"
                                        }
                                    ]
                                }
                            ],
                            "deliveryAddresses": [
                                {
                                    "region": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "UK"
                                        }
                                    ],
                                    "country": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "GB"
                                        }
                                    ],
                                    "countryName": [
                                        {
                                            "releaseID": "078250-2026",
                                            "releaseDate": "2026-08-17T16:19:46+01:00",
                                            "releaseTag": [
                                                "planning"
                                            ],
                                            "value": "United Kingdom"
                                        }
                                    ]
                                },
                                {
                                    "region": [
                                        {
                                            "releaseID": "095732-2026",
                                            "releaseDate": "2026-10-09T14:43:08+01:00",
                                            "releaseTag": [
                                                "tender"
                                            ],
                                            "value": "UKL"
                                        }
                                    ],
                                    "country": [
                                        {
                                            "releaseID": "095732-2026",
                                            "releaseDate": "2026-10-09T14:43:08+01:00",
                                            "releaseTag": [
                                                "tender"
                                            ],
                                            "value": "GB"
                                        }
                                    ],
                                    "countryName": [
                                        {
                                            "releaseID": "095732-2026",
                                            "releaseDate": "2026-10-09T14:43:08+01:00",
                                            "releaseTag": [
                                                "tender"
                                            ],
                                            "value": "United Kingdom"
                                        }
                                    ]
                                }
                            ],
                            "relatedLot": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "2"
                                }
                            ]
                        }
                    ],
                    "procurementMethod": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "selective"
                        }
                    ],
                    "procurementMethodDetails": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "Competitive flexible procedure"
                        }
                    ],
                    "procedure": {
                        "features": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "To be advised."
                            },
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": "National Grid intends to conduct a Competitive Flexible Procedure with a multi-stage process. Suppliers are requested to register their interest to enable secure onboarding to National Grid's Ariba sourcing platform. Following onboarding, National Grid will issue the confidential procurement documents through Ariba, This will be a qualification questionnaire and associated documents.\n Suppliers must submit a completed request to participate by the deadline stated in the notice. National Grid will assess responses against the published conditions of participation and, where applicable, the published criteria for limiting supplier numbers. Suppliers selected to proceed will then be invited to submit tenders through Ariba. \nThe multi-stage includes:\nStage 1: Pre-qualification \nStage 2: Request for Proposal (RFP) including evaluation, optional negotiation and resubmission\nFurther details are included in the Instructions to Tenderers and associated procurement documents which will be issued via ARIBA."
                            }
                        ]
                    },
                    "mainProcurementCategory": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "works"
                        }
                    ],
                    "specialRegime": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": [
                                "utilities"
                            ]
                        }
                    ],
                    "aboveThreshold": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": true
                        }
                    ],
                    "submissionTerms": {
                        "languages": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": [
                                    "en"
                                ]
                            }
                        ],
                        "electronicSubmissionPolicy": [
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": "allowed"
                            }
                        ]
                    },
                    "expressionOfInterestDeadline": [
                        {
                            "releaseID": "078250-2026",
                            "releaseDate": "2026-08-17T16:19:46+01:00",
                            "releaseTag": [
                                "planning"
                            ],
                            "value": "2026-10-07T17:00:00+01:00"
                        },
                        {
                            "releaseID": "095732-2026",
                            "releaseDate": "2026-10-09T14:43:08+01:00",
                            "releaseTag": [
                                "tender"
                            ],
                            "value": "2026-10-19T23:59:59+01:00"
                        }
                    ],
                    "awardPeriod": {
                        "endDate": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "2027-01-28T23:59:59Z"
                            },
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": "2027-02-01T23:59:59Z"
                            }
                        ]
                    },
                    "lots": [
                        {
                            "id": "1",
                            "title": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "ISS Walham, Gloucestershire"
                                },
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "Lot 1. ISS Walham, Gloucestershire"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Walham."
                                }
                            ],
                            "status": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "planned"
                                },
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "active"
                                }
                            ],
                            "contractPeriod": {
                                "startDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2027-02-26T00:00:00Z"
                                    },
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "2027-05-17T00:00:00+01:00"
                                    }
                                ],
                                "endDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2028-02-25T23:59:59Z"
                                    },
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "2028-01-14T23:59:59Z"
                                    }
                                ]
                            },
                            "value": {
                                "amountGross": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": 10800000
                                    }
                                ],
                                "amount": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": 9000000
                                    }
                                ],
                                "currency": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "GBP"
                                    }
                                ]
                            },
                            "awardCriteria": {
                                "criteria": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": [
                                            {
                                                "type": "quality",
                                                "name": "Technical",
                                                "numbers": [
                                                    {
                                                        "number": 75,
                                                        "weight": "percentageExact"
                                                    }
                                                ]
                                            },
                                            {
                                                "type": "cost",
                                                "name": "Commercial",
                                                "numbers": [
                                                    {
                                                        "number": 25,
                                                        "weight": "percentageExact"
                                                    }
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            "selectionCriteria": {
                                "criteria": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": [
                                            {
                                                "type": "economic",
                                                "description": "Suppliers may be required to demonstrate that they have the legal and financial capacity to perform the contract. This will include demonstrating sufficient financial standing, taking account of the nature, complexity, value, duration and risk profile of the contract, and an ability to meet all applicable legal, statutory and regulatory requirements relevant to its performance. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA."
                                            },
                                            {
                                                "type": "technical",
                                                "description": "Suppliers will be required to demonstrate the technical ability, relevant experience, competent resources, systems and organisational capability necessary to perform the contract. This includes meeting National Grid's applicable standard supplier requirements and all project-specific technical requirements. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA. References to particular qualifications, accreditations or standards include permitted equivalents."
                                            },
                                            {
                                                "description": "There is no maximum number of suppliers invited to participate in Stage 1: Prequalification.\nThere will be a maximum number of suppliers invited to Stage 2: Request to Participate. The criteria used to select suppliers will be set out in the procurement documentation issued via Ariba. This stage will include additional pass/fail questions, followed by more detailed scored questions that will be used to assess and rank suppliers. Only the highest-ranking suppliers, up to the specified maximum number, will be invited to progress.",
                                                "forReduction": true
                                            }
                                        ]
                                    }
                                ]
                            },
                            "hasOptions": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": true
                                }
                            ],
                            "options": {
                                "description": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "The Contract is based on the NEC4 ECC form of contract, which includes the right for the Project Manager to issue instructions to the Contractor which may have the impact of changing Key Dates/Completion Dates/the total of the Prices. Not all such instructions constitute modifications within the meaning set out in the Procurement Act 2023, but National Grid note the following Project Manager's instructions which may, depending on their content, give rise to modifications under the Procurement Act 2023 are permitted modifications (para 11 Schedule 8): \n•\tA Project Manager's instruction changing the Scope/ or the boundaries of the Site (clause 14.3, 60.1(1));\n•\tA Project Manager's instruction to omit any part(s) of the Scope (clause Z23).\nThe Client may also in accordance with ECI clause X22 i) issue a notice to proceed instructing the Contractor to complete Stage 2 of the works or b) issue an instruction that a notice to proceed to Stage 2 will not be issued and that the contract will terminate/ Stage 2 of the works will be removed from the Scope.\nThis procurement is for the appointment of a contractor under NEC4 Engineering and Construction Contract Option C with Secondary Option X22 Early Contractor Involvement. The successful Contractor will initially be appointed to undertake Stage One ECI activities including design development, buildability assessments, risk reduction, programme optimisation and preparation of an open-book Target Cost.\nFollowing completion of Stage One the Client will determine whether to issue a notice to proceed for Stage Two construction activities. Progression to Stage Two is subject to agreement of the Target Cost, satisfactory risk reduction outcomes, business case approval and funding confirmation. If a notice that the works will not proceed to Stage Two is issued, the contract will terminate/Stage Two of the works will be removed from the Scope."
                                    }
                                ]
                            }
                        },
                        {
                            "id": "2",
                            "title": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "ISS Pentir, Gwynedd"
                                },
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "Lot 2. ISS Pentir, Gwynedd"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "National Grid Electricity Transmission Plc is seeking an experienced and suitably qualified supplier capable of delivering a fully integrated security solution for a critical national infrastructure site at Pentir."
                                }
                            ],
                            "status": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "planned"
                                },
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "active"
                                }
                            ],
                            "contractPeriod": {
                                "startDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2027-02-26T00:00:00Z"
                                    },
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "2027-05-17T00:00:00+01:00"
                                    }
                                ],
                                "endDate": [
                                    {
                                        "releaseID": "078250-2026",
                                        "releaseDate": "2026-08-17T16:19:46+01:00",
                                        "releaseTag": [
                                            "planning"
                                        ],
                                        "value": "2028-02-25T23:59:59Z"
                                    },
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "2028-01-14T23:59:59Z"
                                    }
                                ]
                            },
                            "value": {
                                "amountGross": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": 14400000
                                    }
                                ],
                                "amount": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": 12000000
                                    }
                                ],
                                "currency": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "GBP"
                                    }
                                ]
                            },
                            "awardCriteria": {
                                "criteria": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": [
                                            {
                                                "type": "quality",
                                                "name": "Technical",
                                                "numbers": [
                                                    {
                                                        "number": 75,
                                                        "weight": "percentageExact"
                                                    }
                                                ]
                                            },
                                            {
                                                "type": "cost",
                                                "name": "Commercial",
                                                "numbers": [
                                                    {
                                                        "number": 25,
                                                        "weight": "percentageExact"
                                                    }
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            "selectionCriteria": {
                                "criteria": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": [
                                            {
                                                "type": "economic",
                                                "description": "Suppliers may be required to demonstrate that they have the legal and financial capacity to perform the contract. This will include demonstrating sufficient financial standing, taking account of the nature, complexity, value, duration and risk profile of the contract, and an ability to meet all applicable legal, statutory and regulatory requirements relevant to its performance. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA."
                                            },
                                            {
                                                "type": "technical",
                                                "description": "Suppliers will be required to demonstrate the technical ability, relevant experience, competent resources, systems and organisational capability necessary to perform the contract. This includes meeting National Grid's applicable standard supplier requirements and all project-specific technical requirements. The detailed conditions of participation, supporting evidence requirements, assessment methodology and any applicable minimum thresholds will be set out in the Instructions to Tenderers and associated procurement documentation made available to Tenderers on ARIBA. References to particular qualifications, accreditations or standards include permitted equivalents."
                                            },
                                            {
                                                "description": "There is no maximum number of suppliers invited to participate in Stage 1: Prequalification.\nThere will be a maximum number of suppliers invited to Stage 2: Request to Participate. The criteria used to select suppliers will be set out in the procurement documentation issued via Ariba. This stage will include additional pass/fail questions, followed by more detailed scored questions that will be used to assess and rank suppliers. Only the highest-ranking suppliers, up to the specified maximum number, will be invited to progress.",
                                                "forReduction": true
                                            }
                                        ]
                                    }
                                ]
                            },
                            "hasOptions": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": true
                                }
                            ],
                            "options": {
                                "description": [
                                    {
                                        "releaseID": "095732-2026",
                                        "releaseDate": "2026-10-09T14:43:08+01:00",
                                        "releaseTag": [
                                            "tender"
                                        ],
                                        "value": "The Contract is based on the NEC4 ECC form of contract, which includes the right for the Project Manager to issue instructions to the Contractor which may have the impact of changing Key Dates/Completion Dates/the total of the Prices. Not all such instructions constitute modifications within the meaning set out in the Procurement Act 2023, but National Grid note the following Project Manager's instructions which may, depending on their content, give rise to modifications under the Procurement Act 2023 are permitted modifications (para 11 Schedule 8): \n•\tA Project Manager's instruction changing the Scope/ or the boundaries of the Site (clause 14.3, 60.1(1));\n•\tA Project Manager's instruction to omit any part(s) of the Scope (clause Z23).\nThe Client may also in accordance with ECI clause X22 i) issue a notice to proceed instructing the Contractor to complete Stage 2 of the works or b) issue an instruction that a notice to proceed to Stage 2 will not be issued and that the contract will terminate/ Stage 2 of the works will be removed from the Scope.\nThis procurement is for the appointment of a contractor under NEC4 Engineering and Construction Contract Option C with Secondary Option X22 Early Contractor Involvement. The successful Contractor will initially be appointed to undertake Stage One ECI activities including design development, buildability assessments, risk reduction, programme optimisation and preparation of an open-book Target Cost.\nFollowing completion of Stage One the Client will determine whether to issue a notice to proceed for Stage Two construction activities. Progression to Stage Two is subject to agreement of the Target Cost, satisfactory risk reduction outcomes, business case approval and funding confirmation. If a notice that the works will not proceed to Stage Two is issued, the contract will terminate/Stage Two of the works will be removed from the Scope."
                                    }
                                ]
                            }
                        }
                    ],
                    "documents": [
                        {
                            "id": "L-1",
                            "documentType": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "biddingDocuments"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login"
                                },
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "Please complete the Microsoft Form to submit an Expression of Interest to receive tender notice documentation.\nThe information collected will be used as part of the first-stage SAP Ariba onboarding process for National Grid. All fields are mandatory to facilitate Supplier Lifecycle and Performance (SLP) pre-registration and should be completed accurately and in full.\nFollowing receipt of expressions of interest, an Ariba profile will be created and a questionnaire issued via Ariba to conclude onboarding.\nIn addition, your organisation must be registered on the Central Digital Platform (CDP). If you have not yet registered, please do so using the following link: https://supplierregistration.cabinetoffice.gov.uk/login"
                                }
                            ],
                            "url": [
                                {
                                    "releaseID": "078250-2026",
                                    "releaseDate": "2026-08-17T16:19:46+01:00",
                                    "releaseTag": [
                                        "planning"
                                    ],
                                    "value": "https://forms.cloud.microsoft/r/3cr4ANRWaJ"
                                }
                            ]
                        },
                        {
                            "id": "conflictOfInterest",
                            "documentType": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "conflictOfInterest"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "Not published"
                                }
                            ]
                        },
                        {
                            "id": "095732-2026",
                            "documentType": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "tenderNotice"
                                }
                            ],
                            "noticeType": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "UK4"
                                }
                            ],
                            "description": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "Tender notice on Find a Tender"
                                }
                            ],
                            "url": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "https://www.find-tender.service.gov.uk/Notice/095732-2026"
                                }
                            ],
                            "datePublished": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "2026-10-09T14:43:08+01:00"
                                }
                            ],
                            "format": [
                                {
                                    "releaseID": "095732-2026",
                                    "releaseDate": "2026-10-09T14:43:08+01:00",
                                    "releaseTag": [
                                        "tender"
                                    ],
                                    "value": "text/html"
                                }
                            ]
                        }
                    ],
                    "communication": {
                        "futureNoticeDate": [
                            {
                                "releaseID": "078250-2026",
                                "releaseDate": "2026-08-17T16:19:46+01:00",
                                "releaseTag": [
                                    "planning"
                                ],
                                "value": "2026-09-28T23:59:59+01:00"
                            }
                        ]
                    },
                    "value": {
                        "amountGross": [
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": 25200000
                            }
                        ],
                        "amount": [
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": 21000000
                            }
                        ],
                        "currency": [
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": "GBP"
                            }
                        ]
                    },
                    "submissionMethodDetails": [
                        {
                            "releaseID": "095732-2026",
                            "releaseDate": "2026-10-09T14:43:08+01:00",
                            "releaseTag": [
                                "tender"
                            ],
                            "value": "Suppliers wishing to participate in this opportunity should complete the Expression of Interest link.\nSuppliers are requested to register their interest 16th October 2026 to enable Ariba onboarding and secure access to the documents. Registration is an administrative access step and is not an evaluated stage. Suppliers that miss this date should contact National Grid promptly. Access may be facilitated where reasonably practicable before the submission deadline.\nNational Grid Procurement will issue the tender documents via SAP Ariba (https://service.ariba.com) to those suppliers that have expressed their interest in response to this notice."
                        }
                    ],
                    "lotDetails": {
                        "maximumLotsAwardedPerSupplier": [
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": 1
                            }
                        ],
                        "awardCriteriaDetails": [
                            {
                                "releaseID": "095732-2026",
                                "releaseDate": "2026-10-09T14:43:08+01:00",
                                "releaseTag": [
                                    "tender"
                                ],
                                "value": "Tenderers may submit bids for one or both Lots; however, a Tenderer may only be awarded a maximum of one Lot. Further details of the Lot award methodology are provided within the Instructions to Tenderers."
                            }
                        ]
                    }
                },
                "language": [
                    {
                        "releaseID": "078250-2026",
                        "releaseDate": "2026-08-17T16:19:46+01:00",
                        "releaseTag": [
                            "planning"
                        ],
                        "value": "en"
                    }
                ],
                "extensions": [
                    {
                        "releaseID": "078250-2026",
                        "releaseDate": "2026-08-17T16:19:46+01:00",
                        "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"
                        ]
                    }
                ]
            }
        }
    ]
}