Maritime PRPP Contract Details notice

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              "countryName": "United Kingdom",
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      "status": "active",
      "suppliers": [
        {
          "id": "GB-FTS-176652",
          "name": "United Kingdom National Nuclear Laboratory Limited (UKNNL)"
        }
      ]
    }
  ],
  "buyer": {
    "id": "GB-PPON-PDHQ-2163-WYMH",
    "name": "Department for Energy Security \u0026 Net Zero"
  },
  "contracts": [
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      "awardID": "1",
      "dateSigned": "2026-02-20T00:00:00+00:00",
      "documents": [
        {
          "datePublished": "2026-03-09T16:20:34Z",
          "description": "Contract details notice on Find a Tender",
          "documentType": "contractNotice",
          "format": "text/html",
          "id": "021033-2026",
          "noticeType": "UK7",
          "url": "https://www.find-tender.service.gov.uk/Notice/021033-2026"
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      "period": {
        "endDate": "2026-03-31T23:59:59+01:00",
        "startDate": "2026-02-20T00:00:00+00:00"
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      "status": "active",
      "value": {
        "amount": 20000,
        "amountGross": 24000,
        "currency": "GBP"
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  "date": "2026-03-09T16:20:34Z",
  "id": "021033-2026",
  "initiationType": "tender",
  "language": "en",
  "ocid": "ocds-h6vhtk-0665a5",
  "parties": [
    {
      "address": {
        "country": "GB",
        "countryName": "United Kingdom",
        "locality": "London",
        "postalCode": "SW1A 2HP",
        "region": "UKI32",
        "streetAddress": "55 Whitehall"
      },
      "contactPoint": {
        "email": "nuclearcommercial@energysecurity.gov.uk"
      },
      "details": {
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            "description": "Public authority - central government",
            "id": "publicAuthorityCentralGovernment",
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      "id": "GB-PPON-PDHQ-2163-WYMH",
      "identifier": {
        "id": "PDHQ-2163-WYMH",
        "scheme": "GB-PPON"
      },
      "name": "Department for Energy Security \u0026 Net Zero",
      "roles": [
        "buyer"
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    },
    {
      "address": {
        "country": "GB",
        "countryName": "United Kingdom",
        "locality": "Warrington",
        "postalCode": "WA3 6AE",
        "region": "UKD61",
        "streetAddress": "Chadwick House Warrington Road  Birchwood Park"
      },
      "contactPoint": {
        "email": "colin.vickery@uknnl.com"
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      "id": "GB-FTS-176652",
      "name": "United Kingdom National Nuclear Laboratory Limited (UKNNL)",
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  "tender": {
    "description": "The Department for Energy Security and Net Zero has awarded a contract for the provision of a qualitative assessment of the proliferation resistance and physical protection (PRPP) characteristics of advanced reactor systems adapted for potential marine propulsion applications (hereafter \u201cthe Study\u201d). \nThis assessment builds on previous PRPP evaluations commissioned by the Client for land\u2011based Generation IV reactor systems; specifically, PWR, HTGR, LFR, SFR and MSR designs and will consider how PRPP outcomes may differ when such reactor types are adapted for deployment onboard maritime vessels. \nThe Study will include the following: \n1. Technology and Design Review \n\u2022 Review of the global marine reactor development landscape to identify which previously assessed land\u2011based reactor types have credible or emerging marine\u2011based variants.   \n\u2022 Identification and description of design changes associated with marine deployment, including but not limited to:   \n Core size and configuration   \n Core materials   \n Fuel enrichment levels   \n Fuel form   \n Spent fuel volumes and properties   \n Refuelling approach and operational cycles \n2. PRPP Scenario Review \n\u2022 Re\u2011examination of the three threat scenarios used in the previous PRPP assessments (one proliferation scenario and two physical protection scenarios).   \n\u2022 Qualitative commentary on how scenario assessments and scoring \u2018would change\u2019 because of:   \nSiting reactors onboard maritime vessels   \n Design modifications identified in the technology and design review \n3. High\u2011Level Assessment Output \n\u2022 Development of a high\u2011level, qualitative description of how PRPP measure scores might be adjusted should an expert workshop be reconvened.   \n\u2022 The Study will \u2018not\u2019 re\u2011score the original PRPP measures in detail, as the intent is to inform future expert assessment rather than replace it.",
    "id": "Prj_6547",
    "legalBasis": {
      "id": "2023/54",
      "scheme": "UKPGA",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
    },
    "lots": [
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        "status": "complete"
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    "procurementMethod": "direct",
    "procurementMethodDetails": "Below threshold - without competition",
    "status": "complete",
    "title": "Maritime PRPP Contract Details notice"
  }
}