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                                "id": "028673-2026"
                            }
                        ]
                    },
                    "language": "en",
                    "extensions": [
                        "https://standard.open-contracting.org/profiles/eu/latest/en/extension.json",
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                {
                    "id": "032595-2026",
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                    ],
                    "date": "2026-04-09T16:50:03+01:00",
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                            "name": "Ofgem",
                            "id": "GB-PPON-PWXD-5991-LZZP",
                            "identifier": {
                                "scheme": "GB-PPON",
                                "id": "PWXD-5991-LZZP"
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                                "streetAddress": "10 South Colonnade",
                                "locality": "London",
                                "postalCode": "E14 4PU",
                                "country": "GB",
                                "countryName": "United Kingdom",
                                "region": "UKI42"
                            },
                            "contactPoint": {
                                "name": "Rebecca Green",
                                "email": "procurement2@ofgem.gov.uk"
                            },
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                            "scheme": "UKPGA",
                            "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
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                        "title": "2024-133 RIIO-3 Independent Technical Adviser",
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                                        "id": "71310000",
                                        "description": "Consultative engineering and construction services"
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                            "amount": 20833333,
                            "currency": "GBP"
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                        "procurementMethodDetails": "Open procedure",
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                        "submissionTerms": {
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                        "enquiryPeriod": {
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                                "id": "032595-2026"
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                    "id": "034326-2026",
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                    ],
                    "date": "2026-04-15T15:23:52+01:00",
                    "initiationType": "tender",
                    "ocid": "ocds-h6vhtk-0550e3",
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                                "id": "PWXD-5991-LZZP"
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                                "postalCode": "E14 4PU",
                                "country": "GB",
                                "countryName": "United Kingdom",
                                "region": "UKI42"
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                            "contactPoint": {
                                "name": "Rebecca Green",
                                "email": "procurement2@ofgem.gov.uk"
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                                "classifications": [
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                                "url": "https://www.find-tender.service.gov.uk/Notice/Attachment/A-14798",
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                                "description": "Additional supporting documents now uploaded",
                                "id": "034326-2026"
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                },
                {
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                    "tag": [
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                        "contract"
                    ],
                    "date": "2026-07-03T14:38:45+01:00",
                    "initiationType": "tender",
                    "ocid": "ocds-h6vhtk-0550e3",
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                            "identifier": {
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                                "id": "PWXD-5991-LZZP"
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                                "countryName": "United Kingdom",
                                "region": "UKI42"
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                                "email": "procurement2@ofgem.gov.uk"
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                        },
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                            "description": "Tender notice on Find a Tender",
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                    "riskDetails": "Key risks to the successful delivery of the contract include:\n• Availability and retention of suitably skilled and experienced resources over the contract period;\n• Conflicts of interest arising from suppliers' wider market activities and relationships with Transmission Owners or their supply chains;\n• The variable and evolving nature of the scope of work across RIIO‑3, including changes in project eligibility, volume and timing;\n• Dependence on timely provision of information and cooperation from third parties, including Transmission Owners; and\n• The complexity and scale of electricity transmission projects, which may impact delivery timelines and assurance activities.\nThese risks will be managed through contractual controls, governance arrangements, reporting requirements and performance management mechanisms as set out in the framework and call‑off contracts.",
                    "amendments": [
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                            "id": "028673-2026",
                            "description": "Change to the tender submission date from 07 April 2026 at 12 noon to 14 April 2026 at 12 noon"
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                            "description": "Due to issues with the mytender system, uploaded documents added to the notice are not showing.  Mytenders are aware and looking in to this.  Thererfore, to allow time for bidders to review these documents, the closing date is being pushed back a week with the view that the system has been fixed by Monday to allow the document to show.  To note for bidders, the changes to the terms are minimal and likely will not result in fundamental changes needed to be made to bids."
                        },
                        {
                            "id": "034326-2026",
                            "description": "Additional supporting documents now uploaded"
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