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BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsMobile Trailer-Mounted Transformer Oil Processing Units
    Open tender

    Mobile Trailer-Mounted Transformer Oil Processing Units

    Supply, design and support of two mobile transformer oil processing trailers with onboard vacuum and power systems, expandable to four units, for the UK electricity transmission network.

    🇬🇧United Kingdom· LondonPublished 18 Sept 2026· TodayviaFind a Tender

    Decision brief

    4 fields
    • Contract value
      Not disclosed
      Source did not declare a figure
    • Closing date
      Rolling
      No closing date published
    • Sector
      Energy & Utilities
      Browse related listings
    • Location
      🇬🇧United Kingdom
      London

    Lifecycle

    Open

    Open tender — no closing date published. Opened today.

    18 September 2026
    Open tender · no closing date published

    Brief

    National Grid Electricity Transmission seeks a supplier to design, manufacture, supply, commission and support two trailer-mounted mobile transformer oil processing vehicles, with an option to purchase up to two additional units. The vehicles must be road-legal, self-contained, and deployable at operational substations and construction sites across the UK. Required capabilities include: oil filtration, drying, degassing and vacuum processing at minimum 7,500 litres/hour (50°C); integrated vacuum systems for independent and simultaneous transformer and chamber treatment; onboard power generation with external power connection options; PLC/SCADA monitoring and control with remote access; welfare facilities and environmental controls for field personnel; and full compliance with UK safety, fire protection and environmental legislation. The supplier must deliver complete technical documentation, operator and maintainer training, warranty support, and after-sales service. Services include Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT), commissioning and performance demonstration.

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    Take action
    View tender on sourceFind a Tender

    Full notice and submission process on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-07751e
    NG
    Buyer
    NATIONAL GRID ELECTRICITY TRANSMISSION PLC
    Sector
    Energy & Utilities