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    SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed

    Helen Electricity Network Ltd. (Helen Sähköverkko Oy)

    SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed

    1. Competition notice published

      Oct 7, 10:18 AMOctober 7, 2026 10:18 AM
    2. Questions deadline

      Oct 14, 11:00 AMOctober 14, 2026 11:00 AM
    3. Qualification deadline

      Oct 23, 11:00 AMOctober 23, 2026 11:00 AM
    4. Contract start date

      Mar 31, 12:00 AMMarch 31, 2027 12:00 AM
    5. Contract end date

      Mar 30, 12:00 AMMarch 30, 2029 12:00 AM

    Brief

    Finland: Tenders/Helen Electricity Network Ltd. (Helen Sähköverkko Oy)/SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed
    Brief

    Elektrisk infrastruktur og veibelysning

    Helen Electricity Network Ltd. (Helen Sähköverkko Oy) needs a 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and a 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed for a new 400 kV substation in Sörnäinen, Helsinki, Finland, with an intended delivery in 2030. The delivery includes manufacturing, testing, all necessary logistics (sea transportation to Finland, loading/unloading, road transport to site, customs clearance), unloading on foundation, erection, testing, and commissioning at the site. The procurement will be conducted as a negotiated procedure, with award criteria based on price and quality.

    About the bid

      Helen Sähköverkko Oy is building new 400 kV substation in Sörnäinen, Helsinki Finland. Subject of the procurement is delivery of power transformer and VSR reactor for Helen Sähköverkko Oy. Intended delivery of power transformer and VSR reactor is year 2030. With this invitation to participate Helen Sähköverkko Oy is looking for capable and interested candidates to deliver the needed power transformer and VSR reactor. The delivery of power transformer and VSR reactor, including all needed transportation and erections, will be performed as turnkey deliveries. The transformer and VSR reactor deliveries will be separate from the substation construction project performed by other contractors, however, there is a need to coordinate the delivery with the construction work at site. Delivery of 400 / 400 / 125 MVA, 410 ± 6 x 1,33 % / 120 / 21 kV power transformer (Synthetic Ester Oil), equipped with on-load tap-changer, including: - Manufacturing of transformer with fittings and accessories - Testing - All necessary logistics e.g. - Sea transportation to Finland - Loading and unloading on the railway cart - Loading and unloading on road truck and transport to the site - Supplier may choose the means and route of transportation - All organizational work needed for logistics: arrangement of transportation from factory to site, customs clearance and forwarding - Unloading on the foundation - Erection, testing and commissioning at site. Delivery of 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed including: - Manufacturing of reactor with fittings and accessories - Testing - All necessary logistics e.g. - Sea transportation to Finland - Loading and unloading on the railway cart - Loading and unloading on road truck and transport to the site - Supplier may choose the means and route of transportation - All organizational work needed for logistics: arrangement of transportation from factory to site, customs clearance and forwarding - Unloading on the foundation - Erection, testing and commissioning at site.Main features of the procedureThe procurement will be conducted as a negotiated procedure above the EU threshold in accordance with the Act on Procurement and Concession Contracts by Entities Operating in the Water, Energy, Transport and Postal Services Sectors (1398/2016, hereinafter the "Utilities Procurement Act"). In this procedure, the Contracting Entity will publish a contract notice and request to participate, on the basis of which Candidates may submit a request to participate. The Contracting Entity will select for the negotiated procedure all Candidates that satisfy the minimum requirements set out in the request to participate. The Contracting Entity will select for the negotiated procedure all Candidates whose requests to participate meet the minimum requirements. If the number of eligible Candidates exceeds three (3), the Candidates with the highest scores will be selected in accordance with the criteria described under “Award Decision Criteria” in the request to participate. Only Tenderers selected for the negotiated procedure will be invited to participate in negotiations and submit a tender. The preliminary timetable for the procedure is as follows (the timetable is subject to change during the procurement process): 10/2026 – Publication of the request to participate 10/2026 – Decision on the Tenderers invited to negotiations 10-11/2026 – Issue of the initial invitation to tender to the selected Tenderers 11-12/2026 – Deadline for submission of initial tenders 12/2026 – Negotiations 12/2026 – Issue of the final invitation to tender 01/2027 – Deadline for submission of final tenders 02/2027 – Clarification and verification discussions 02-03/2027 – Supplier selection and procurement decision The procurement contract will be signed no earlier than after the expiry of the applicable appeal period and standstill period (14 days from notification of the procurement decision).

      Contact name
      Heidi Litmanen
      Contact phone
      +358 504411679
      Contact email
      heidi.litmanen@helen.fi
      Address
      Itämerenkatu 25, 00180 Helsinki

    Custom Assessment Criteria

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    Award Criteria

    • Description

      Please refer to the section “Additional Information” – “Grounds for Decision-Making” in the contract notice.

    • Description

      Please refer to the section “Additional Information” – “Grounds for Decision-Making” in the contract notice.

    Qualification requirements

      Found no qualification requirements in the contract notice.

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    See the full notice

    Contracting authority
    Helen Electricity Network Ltd. (Helen Sähköverkko Oy)
    Title
    SR 400 MVA 400 kV Power Transformer (Synthetic Ester Oil) and 63 MVAr 21 kV Variable Shunt Reactor (VSR) Synthetic Ester Oil-Immersed
    Type
    CompetitionPrequalification
    Main code
    31170000Transformers
    Supplemental codes

    No supplemental codes from buyer…

    Location
    Helsinki-Uusimaa

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