UW Riddes (Valgrid); 1 pc 275-MVA three-phase network transformer as phase shifter transformer (220/65 kV) + 1 pc as option
About This Opportunity
TranslatedThis tender concerns the supply of one 275 MVA three-phase power transformer configured as a phase shifter transformer with voltage levels of 220/65 kV. Additionally, an option for a second transformer of identical specifications is included. The scope of the tender also encompasses the individual pricing for a heat run test of the transformer. The deliverables and services detailed in the tender documents cover a comprehensive range of activities, including the design, calculation, construction, fabrication, transportation, and unloading (onto foundation) at the construction site. Furthermore, the tender includes responsibilities for assembly supervision, commissioning, personnel instructions, factory and on-site testing and acceptance measurements, the execution of trial operation, inspections during the warranty period, instructions and training for operating personnel, and the provision of operational documentation for the transformers. This procurement is crucial for the UW Riddes (Valgrid) project, requiring specialized high-voltage electrical equipment and associated services to ensure reliable grid operation and phase shifting capabilities.
This is a supplies contract in the energy and power, architecture and engineering and general supplies sectors, with a focus on Power Generation and Electrical Engineering. Located in Switzerland, Europe, this opportunity is open to firms and consortiums.
Published through TED - Tenders Electronic Daily (EU), a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for the supply of goods in the energy and power sector. Supply contracts typically require bidders to demonstrate product compliance with technical specifications, delivery capacity, and relevant certifications. This contract has already been awarded. The information is published for transparency and market intelligence purposes.
Description
Auto-translated from GermanThe subject of this tender is the delivery of: a 275-MVA three-phase network transformer as a phase shifter transformer (220/65 kV) and another transformer of the same specification as an option. Also subject to the tender are individual prices for the heating run of the transformer. The deliveries and services described in these tender documents include design, calculation, construction, fabrication, transport, and unloading (onto foundation) at the construction site. This also includes assembly supervision, commissioning, personnel instructions, tests and acceptance measurements at the factory and on-site, carrying out the trial run, inspections during the warranty period, instructions and training of operating personnel, and operating documentation for the transformers.
Data provenance
This notice is sourced from TED - Tenders Electronic Daily (EU) and was originally published on December 11, 2025. Last refreshed 24 days ago. Original language: German. BidsFactory mirrors official procurement notices and links back to the source for full legal text.
About Axpo Grid AG
Axpo Grid AG has issued 12 procurement notices on BidsFactory, including 4 currently open and 4 awarded contracts. Activity concentrates in Architecture & Engineering Services, Energy & Power, and General Supplies & Services. All notices are published for Switzerland. Notices are distributed via TED - Tenders Electronic Daily (EU) and SIMAP Switzerland. Most recent publication: August 21, 2026.
Frequently asked questions about this tender
Is this tender still open?
No — the contract has already been awarded to DE_Siemens Energy AG. The award notice is archived on BidsFactory for transparency and market intelligence.
Who is the contracting authority?
This notice was issued by Axpo Grid AG in Switzerland. The authority is responsible for evaluating bids, awarding the contract, and managing performance.
What type of contract is this?
This is a Supplies contract in the Energy & Power sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.
How much was the contract awarded for?
DE_Siemens Energy AG was awarded the contract for €34,558,165. The figure reflects the value disclosed by the contracting authority in the award notice.
Where will the contract be performed?
The contract is for delivery in Switzerland. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.
How can I submit a bid?
Visit TED - Tenders Electronic Daily (EU) to access the full notice, required documents, and submission instructions provided by the contracting authority.
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