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    ContractsConstruction of New Substation Building in Riet
    Closed contract

    Construction of New Substation Building in Riet

    Tender closed
    16 Sept 2025
    14 months ago

    Swissgrid AG is seeking suppliers for the construction and renovation of the 220-kV outdoor switchgear at the Riet substation, which has reached the end of its technical lifespan. The project includes the following key components: construction of a new substation building according to Swissgrid stan

    🇨🇭SwitzerlandPublished 21 Jul 2025· 1 year agoviaTED
    Tender closed
    16 Sept 2025
    14 months ago
    Tender deadline passed on 16 Sept 2025.

    Decision brief

    4 fields
    • Contract value
      Not disclosed
      Source did not declare a figure
    • Tender closed
      16 Sept 2025
      1 year ago
    • Sector
      Construction
      Browse related listings
    • Location
      🇨🇭Switzerland

    Lifecycle

    Closed

    Tender closed on 16 Sept 2025. Awaiting award.

    21 Jul 2025Today16 Sept 2025

    Brief

    Swissgrid AG is seeking suppliers for the construction and renovation of the 220-kV outdoor switchgear at the Riet substation, which has reached the end of its technical lifespan. The project includes the following key components: construction of a new substation building according to Swissgrid standards, excavation for the foundation, scaffolding, general construction work, installation of aluminum windows, exterior doors and gates, flat roofing, lightning protection, roof sealing, plastered external thermal insulation, electrical installations, HVAC systems, plumbing, metal interior doors, general metal construction work, carpentry, seamless flooring, construction cleaning, landscaping, development of new cable routes and cable shafts, physical protection for substations, and dismantling of existing Swissgrid facilities. The construction of the new substation building is scheduled to take place from February to November 2026, with most of the remaining work starting in 2027.

    Track record

    2 awards · 2 winners
    Thin record

    Only 2 prior awards here — too little to read.

    In construction, SWISSGRID AG ENGINEERING CONSTRUCTION has awarded 2 contracts to 2 suppliers.

    Who wins here
    1. FR_Brothers Zengaffinen AG1× · 50%
    2. DEGEBRDER ZENGAFFINEN AG1× · 50%

    Across construction, the most active winners are HOLCIM UK LIMITED, TARMAC TRADING LIMITED, LINDUM GROUP LIMITED — the field to beat, or your route in as a partner.

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    View on sourceTED

    Original closed notice on the publisher's site

    Publisher
    Publications Office of the European Union
    Licence
    EU 2011/833/EU + TED reuse notice
    Source
    ted.europa.eu
    Record ID
    478719-2025

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    Buyer
    SWISSGRID AG ENGINEERING CONSTRUCTION
    Sector
    Construction