← Back to search results

planningFind a Tender · planning

RIIO-GT3 Control System Replacement MWC Framework Expression of Interest

Buyer: NATIONAL GAS TRANSMISSION PLC →

BuyerNATIONAL GAS TRANSMISSION PLC
Statusplanning
DeadlineNot published
ValueValue not published
Published3 Sept 2026

What is being bought

This opportunity is published to advertise a preliminary market engagement exercise being conducted by National Gas Transmission PLC ("NGT"). NGT is seeking feedback from the market to support and refine its approach to a forthcoming procurement process in respect of the RIIO-GT3 Control System Replacement Main Works Contractor (MWC) Framework. Who are NGT NGT play a vital role in delivering gas to millions of people across Great Britain. NGT owns, manages, and operates the National Transmission System ("NTS") in Great Britain, making gas available when and where it's needed. NGT ensure that the network is safe, reliable and available, and that it delivers value for our customers and stakeholders, while minimising impact on the environment. What is the Control System Replacement Programme The overarching scope of each project in the programme is the complete replacement and upgrading of the compressor station's control systems to enhance cyber resilience. This involves modernising legacy infrastructure, implementing robust cybersecurity measures, and ensuring that the control systems are capable of withstanding evolving digital threats. The upgrades are intended to safeguard operational integrity, protect critical assets, and align with national and international standards for cyber-secure infrastructure. RIIO-GT3 Control System Replacement MWC Framework NGT has now transitioned from the RIIO-GT2 regulatory period into RIIO-GT3, which runs from April 2026 to March 2031. As part of this new regulatory period, NGT is implementing a new delivery model for the remaining projects within the Control System Replacement Programme. Under this model, a FEED Partner will be appointed to undertake the FEED study for each project. Upon completion of the FEED phase, NGT will appoint a Main Works Contractor (MWC) to deliver the detailed design, manufacture, installation, testing, and commissioning of the relevant station control system works. To support the efficient delivery of the programme, NGT intends to establish a framework agreement through which a number of Main Works Contractors will be appointed and subsequently engaged to deliver projects across the programme. How to express an interest Interested parties are to express an interest by completing and returning the response template. Please request the response template by emailing Thomas.Jones@nationalgas.com and Syed.Kully@nationalgas.com.

Categories

Engineering works and construction works 45220000

Lot details

Lot 1

No lot description published.

Statusplanning
Contract periodFrom 1 Nov 2027 to 31 Oct 2035

What is included

ItemCategoryQuantity
1Engineering works and construction worksNot published

Comparable-procurement analytics

Benchmarked against retained Find a Tender procedures with CPV division 45. The category anchor is Engineering works and construction works (45220000); this is a deliberately broad market comparator. The comparison is shown at several levels rather than pretending one company or region is always the best benchmark.

Comparison setProceduresReported bids per procedureNamed award suppliersPrice evidence
Market: CPV division 459,0624 median · 25.3 average (2,031 of 9,062 with a bid count)3.7 average (2,230 of 9,062 with named award suppliers)Not published
Same buyer1Not publishedNot publishedNot published

“Reported bids” is an official aggregate, sometimes reported per lot; it is the closest available competition measure. “Named award suppliers” are winners, not all applicants.

Price-outcome signal

Not enough comparable procedures currently publish both a GBP tender value and a usable lowest-valid-bid value to calculate a responsible price-reduction benchmark. Tenderline deliberately does not infer a saving from named award suppliers or from missing award values.

Procurement strategy & market signals

Framework agreementYes
Dynamic purchasing systemNot published
Competitive procurementNot published
Recurring requirementNot published
Procurement method rationaleNot published
Rationale classificationsNot published
Special regimeutilities
Covered byNot published
Submission policyNot published
Selection criteriaNot published
Risk detailsNot published

Planning & early market engagement

BudgetValue not published
No-engagement rationaleNot published
Planning documents1
Planning milestones1
MilestoneTypeDueStatus
Interested parties are to express an interest by completing and returning the response template. Please request the response template by emailing Thomas.Jones@nationalgas.com and Syed.Kully@nationalgas.com.engagement9 Oct 2026scheduled

Related procurements

No linked framework, prior procurement or reprocurement published.

Documents & submission route

Source data inventory

Diagnostic view. “Not published” means this current release does not provide a value.

OCIDocds-h6vhtk-06f132
Latest release ID083432-2026
Latest release timestampThu Sep 03 2026 11:15:17 GMT+0000 (Coordinated Universal Time)
Sourcefind-a-tender
Official notice URLNot published
Tender statusplanning
Procurement methodNot published
Procurement method detailsNot published
Main procurement categoryworks
Above thresholdYes
Legal basis2023/54
Tender period: startNot published
Tender period: endNot published
Expression of interest deadlineNot published
Enquiry deadlineNot published
Award period: startNot published
Award period: endNot published
Submission method detailsNot published
Submission languagesNot published
Electronic catalogue policyNot published
Total tender valueNot published
Tender lots in source1
Tender items in source1
Tender documents in source0
Awards in latest release0
Contracts in latest release0
Parties in latest release1

Notice history

DateEventReference
3 Sept 2026planning083432-2026

All source data

Unmodified official OCDS data retained by Tenderline for this procurement process.

Complete current OCDS release JSON
{
  "id": "083432-2026",
  "tag": [
    "planning"
  ],
  "date": "2026-09-03T12:15:17+01:00",
  "ocid": "ocds-h6vhtk-06f132",
  "buyer": {
    "id": "GB-COH-02006000",
    "name": "NATIONAL GAS TRANSMISSION PLC"
  },
  "tender": {
    "id": "ocds-h6vhtk-06f132",
    "lots": [
      {
        "id": "1",
        "status": "planning",
        "contractPeriod": {
          "endDate": "2035-10-31T23:59:59Z",
          "startDate": "2027-11-01T00:00:00Z"
        }
      }
    ],
    "items": [
      {
        "id": "1",
        "relatedLot": "1",
        "additionalClassifications": [
          {
            "id": "45220000",
            "scheme": "CPV",
            "description": "Engineering works and construction works"
          }
        ]
      }
    ],
    "title": "RIIO-GT3 Control System Replacement MWC Framework Expression of Interest",
    "status": "planning",
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "hasFrameworkAgreement": true
    },
    "description": "This opportunity is published to advertise a preliminary market engagement exercise being conducted by National Gas Transmission PLC (\"NGT\"). NGT is seeking feedback from the market to support and refine its approach to a forthcoming procurement process in respect of the RIIO-GT3 Control System Replacement Main Works Contractor (MWC) Framework.\nWho are NGT\nNGT play a vital role in delivering gas to millions of people across Great Britain. NGT owns, manages, and operates the National Transmission System (\"NTS\") in Great Britain, making gas available when and where it's needed. NGT ensure that the network is safe, reliable and available, and that it delivers value for our customers and stakeholders, while minimising impact on the environment. \nWhat is the Control System Replacement Programme\nThe overarching scope of each project in the programme is the complete replacement and upgrading of the compressor station's control systems to enhance cyber resilience. This involves modernising legacy infrastructure, implementing robust cybersecurity measures, and ensuring that the control systems are capable of withstanding evolving digital threats. The upgrades are intended to safeguard operational integrity, protect critical assets, and align with national and international standards for cyber-secure infrastructure.\nRIIO-GT3 Control System Replacement MWC Framework\nNGT has now transitioned from the RIIO-GT2 regulatory period into RIIO-GT3, which runs from April 2026 to March 2031. As part of this new regulatory period, NGT is implementing a new delivery model for the remaining projects within the Control System Replacement Programme. Under this model, a FEED Partner will be appointed to undertake the FEED study for each project. Upon completion of the FEED phase, NGT will appoint a Main Works Contractor (MWC) to deliver the detailed design, manufacture, installation, testing, and commissioning of the relevant station control system works. To support the efficient delivery of the programme, NGT intends to establish a framework agreement through which a number of Main Works Contractors will be appointed and subsequently engaged to deliver projects across the programme.\nHow to express an interest\nInterested parties are to express an interest by completing and returning the response template. Please request the response template by emailing Thomas.Jones@nationalgas.com and Syed.Kully@nationalgas.com.",
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": true,
    "mainProcurementCategory": "works"
  },
  "parties": [
    {
      "id": "GB-COH-02006000",
      "name": "NATIONAL GAS TRANSMISSION PLC",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKG13",
        "country": "GB",
        "locality": "Warwick",
        "postalCode": "CV34 6DA",
        "countryName": "United Kingdom",
        "streetAddress": "National Grid House Warwick Technology Park"
      },
      "details": {
        "url": "https://www.nationalgas.com/",
        "classifications": [
          {
            "id": "privateUtility",
            "scheme": "UK_CA_TYPE",
            "description": "Private utility"
          }
        ]
      },
      "identifier": {
        "id": "02006000",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "name": "Thomas Jones",
        "email": "Thomas.Jones@nationalgas.com"
      },
      "additionalIdentifiers": [
        {
          "id": "PBXW-9626-VNZM",
          "scheme": "GB-PPON"
        }
      ]
    }
  ],
  "language": "en",
  "planning": {
    "documents": [
      {
        "id": "083432-2026",
        "url": "https://www.find-tender.service.gov.uk/Notice/083432-2026",
        "format": "text/html",
        "noticeType": "UK2",
        "description": "Preliminary market engagement notice on Find a Tender",
        "documentType": "marketEngagementNotice",
        "datePublished": "2026-09-03T12:15:17+01:00"
      }
    ],
    "milestones": [
      {
        "id": "engagement",
        "type": "engagement",
        "status": "scheduled",
        "dueDate": "2026-10-09T23:59:59+01:00",
        "description": "Interested parties are to express an interest by completing and returning the response template. Please request the response template by emailing Thomas.Jones@nationalgas.com and Syed.Kully@nationalgas.com."
      }
    ]
  },
  "initiationType": "tender"
}
Complete JSON history (1 releases)
3 Sept 2026 · 083432-2026 · planning
{
  "id": "083432-2026",
  "tag": [
    "planning"
  ],
  "date": "2026-09-03T12:15:17+01:00",
  "ocid": "ocds-h6vhtk-06f132",
  "buyer": {
    "id": "GB-COH-02006000",
    "name": "NATIONAL GAS TRANSMISSION PLC"
  },
  "tender": {
    "id": "ocds-h6vhtk-06f132",
    "lots": [
      {
        "id": "1",
        "status": "planning",
        "contractPeriod": {
          "endDate": "2035-10-31T23:59:59Z",
          "startDate": "2027-11-01T00:00:00Z"
        }
      }
    ],
    "items": [
      {
        "id": "1",
        "relatedLot": "1",
        "additionalClassifications": [
          {
            "id": "45220000",
            "scheme": "CPV",
            "description": "Engineering works and construction works"
          }
        ]
      }
    ],
    "title": "RIIO-GT3 Control System Replacement MWC Framework Expression of Interest",
    "status": "planning",
    "legalBasis": {
      "id": "2023/54",
      "uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents",
      "scheme": "UKPGA"
    },
    "techniques": {
      "hasFrameworkAgreement": true
    },
    "description": "This opportunity is published to advertise a preliminary market engagement exercise being conducted by National Gas Transmission PLC (\"NGT\"). NGT is seeking feedback from the market to support and refine its approach to a forthcoming procurement process in respect of the RIIO-GT3 Control System Replacement Main Works Contractor (MWC) Framework.\nWho are NGT\nNGT play a vital role in delivering gas to millions of people across Great Britain. NGT owns, manages, and operates the National Transmission System (\"NTS\") in Great Britain, making gas available when and where it's needed. NGT ensure that the network is safe, reliable and available, and that it delivers value for our customers and stakeholders, while minimising impact on the environment. \nWhat is the Control System Replacement Programme\nThe overarching scope of each project in the programme is the complete replacement and upgrading of the compressor station's control systems to enhance cyber resilience. This involves modernising legacy infrastructure, implementing robust cybersecurity measures, and ensuring that the control systems are capable of withstanding evolving digital threats. The upgrades are intended to safeguard operational integrity, protect critical assets, and align with national and international standards for cyber-secure infrastructure.\nRIIO-GT3 Control System Replacement MWC Framework\nNGT has now transitioned from the RIIO-GT2 regulatory period into RIIO-GT3, which runs from April 2026 to March 2031. As part of this new regulatory period, NGT is implementing a new delivery model for the remaining projects within the Control System Replacement Programme. Under this model, a FEED Partner will be appointed to undertake the FEED study for each project. Upon completion of the FEED phase, NGT will appoint a Main Works Contractor (MWC) to deliver the detailed design, manufacture, installation, testing, and commissioning of the relevant station control system works. To support the efficient delivery of the programme, NGT intends to establish a framework agreement through which a number of Main Works Contractors will be appointed and subsequently engaged to deliver projects across the programme.\nHow to express an interest\nInterested parties are to express an interest by completing and returning the response template. Please request the response template by emailing Thomas.Jones@nationalgas.com and Syed.Kully@nationalgas.com.",
    "specialRegime": [
      "utilities"
    ],
    "aboveThreshold": true,
    "mainProcurementCategory": "works"
  },
  "parties": [
    {
      "id": "GB-COH-02006000",
      "name": "NATIONAL GAS TRANSMISSION PLC",
      "roles": [
        "buyer"
      ],
      "address": {
        "region": "UKG13",
        "country": "GB",
        "locality": "Warwick",
        "postalCode": "CV34 6DA",
        "countryName": "United Kingdom",
        "streetAddress": "National Grid House Warwick Technology Park"
      },
      "details": {
        "url": "https://www.nationalgas.com/",
        "classifications": [
          {
            "id": "privateUtility",
            "scheme": "UK_CA_TYPE",
            "description": "Private utility"
          }
        ]
      },
      "identifier": {
        "id": "02006000",
        "scheme": "GB-COH"
      },
      "contactPoint": {
        "name": "Thomas Jones",
        "email": "Thomas.Jones@nationalgas.com"
      },
      "additionalIdentifiers": [
        {
          "id": "PBXW-9626-VNZM",
          "scheme": "GB-PPON"
        }
      ]
    }
  ],
  "language": "en",
  "planning": {
    "documents": [
      {
        "id": "083432-2026",
        "url": "https://www.find-tender.service.gov.uk/Notice/083432-2026",
        "format": "text/html",
        "noticeType": "UK2",
        "description": "Preliminary market engagement notice on Find a Tender",
        "documentType": "marketEngagementNotice",
        "datePublished": "2026-09-03T12:15:17+01:00"
      }
    ],
    "milestones": [
      {
        "id": "engagement",
        "type": "engagement",
        "status": "scheduled",
        "dueDate": "2026-10-09T23:59:59+01:00",
        "description": "Interested parties are to express an interest by completing and returning the response template. Please request the response template by emailing Thomas.Jones@nationalgas.com and Syed.Kully@nationalgas.com."
      }
    ]
  },
  "initiationType": "tender"
}