RETROFIT OF 6.4 kV JOULE CELLS WITH NEW 24 kV CELLS WITHOUT SF6
Tender Summary
The SIE SA, Intercommunal Energy Service in Switzerland from Europe region has released this tender for This tender concerns the complete renewal of the medium-voltage (6.4 kV) installation at the Joule substation, located at Chemin du Bochet 5, 1024 Ecublens, and the supply of 32 new MV switchgear units designed using SF6-free technology. The project is part of SIE SAs distribution network modernization strategy and represents a major step in the gradual migration of the distribution network from 6.4 kV to 21 kV. The project includes, in particular: * Dismantling, recycling, and removal of existing MV switchgear and equipment; * Demolition and removal of existing niches; * Removal of a nitrogen cylinder located in the substation; * Disposal of two oil drums (416 liters total); * Complete replacement of existing medium-voltage switchgear units; * Renewal of AC and DC auxiliary services and batteries, as well as a complete upgrade of the HVAC systems; * Renewal of control, monitoring, protection, and communication equipment. * Integration of existing retained equipment; * Necessary civil engineering works; * Adaptations of existing medium-voltage cable connections (optional); * Transport and assembly of all supplied equipment; * Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT), functional testing, and complete commissioning of the installations; * Delivery of all documentation conforming to the execution. The new switchgear must allow operation initially at 6.4 kV and then, without structural modification of the main equipment, at 21 kV. Consequently, the voltage transformers must be sized to accommodate this voltage change. The switchgear must be designed using SF6-free technology and preferably air-insulated, compliant with current environmental requirements and conforming to the technical specifications of this tender document and applicable standards. Existing high-voltage (50 kV) equipment and power transformers are retained. This contract covers only the interfaces necessary for their continued operation. with tender notice no. 700886-2026 published on 12 Oct 2026. The tender is due to expire on 22 Dec 2026. This tender is sourced from TED Europa and is eligible for suppliers interested in Electrical wiring and fitting work. Interested bidders can obtain further information including complete bid documents or ways to participate by registering on Tender Impulse and referencing via Tender Impulse ID 15407573.
Tender Details
Tender NoticeTI Ref: 15407573
Tender Notice No
700886-2026
Tender Organisation
SIE SA, Intercommunal Energy Service
Tender Sector
Tender Service
Worldwide
Tender Region
Tender Project Location
Tender CPV
45311000 : Electrical wiring and fitting work
Tender Source
TED Europa
Tender Document Type
Competition
Tender Deadline
22 Dec 2026 65 days left
Tender Description
This tender concerns the complete renewal of the medium-voltage (6.4 kV) installation at the Joule substation, located at Chemin du Bochet 5, 1024 Ecublens, and the supply of 32 new MV switchgear units designed using SF6-free technology. The project is part of SIE SAs distribution network modernization strategy and represents a major step in the gradual migration of the distribution network from 6.4 kV to 21 kV. The project includes, in particular: * Dismantling, recycling, and removal of existing MV switchgear and equipment; * Demolition and removal of existing niches; * Removal of a nitrogen cylinder located in the substation; * Disposal of two oil drums (416 liters total); * Complete replacement of existing medium-voltage switchgear units; * Renewal of AC and DC auxiliary services and batteries, as well as a complete upgrade of the HVAC systems; * Renewal of control, monitoring, protection, and communication equipment. * Integration of existing retained equipment; * Necessary civil engineering works; * Adaptations of existing medium-voltage cable connections (optional); * Transport and assembly of all supplied equipment; * Factory Acceptance Testing (FAT), Site Acceptance Testing (SAT), functional testing, and complete commissioning of the installations; * Delivery of all documentation conforming to the execution. The new switchgear must allow operation initially at 6.4 kV and then, without structural modification of the main equipment, at 21 kV. Consequently, the voltage transformers must be sized to accommodate this voltage change. The switchgear must be designed using SF6-free technology and preferably air-insulated, compliant with current environmental requirements and conforming to the technical specifications of this tender document and applicable standards. Existing high-voltage (50 kV) equipment and power transformers are retained. This contract covers only the interfaces necessary for their continued operation.
Tender Bidding Type
Tender Document
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Frequently Asked Questions About This Tender
Who has issued this tender, and what is it for?
The tender has been issued by SIE SA, Intercommunal Energy Service in Switzerland. Such a type of tender falls under Electrical wiring and fitting work, within the Healthcare & Medical sector, and is listed on Tender Impulse under notice number 700886-2026.
What are the key dates for this tender?
The notice was published on 12 Oct 2026 and submissions close on 22 Dec 2026. Late bids are rarely accepted in public procurement, so aim to have your documents ready several days before the closing date.
Which CPV codes apply to this tender?
It is classified under CPV codes 45311000, which correspond to Electrical wiring and fitting work. If your company supplies these products or services, these are the codes to save in your alert profile so no matching tender passes you by.
Can I submit my bid for this tender to Tender Impulse?
No - and this matters. Tender Impulse is a tender aggregation and alert service: we collect procurement notices from official sources around the world and list them in one place. We do not receive, forward or evaluate bids. Your bid for this tender must be submitted directly to SIE SA, Intercommunal Energy Service, using the method described in the original tender document, before 22 Dec 2026. Tender Impulse provides complete assistance in submitting all bids posted on its website.
How do I get the bid documents and participation details?
Request a live demo on Tender Impulse and our tender experts will walk you through this listing, share the available documents, and explain how to submit your bid to SIE SA, Intercommunal Energy Service. Subscribers also receive help with registration requirements and, where needed, translation of non-English notices - but the submission itself always goes from you to the buyer.
How can I find more tenders like this in Switzerland?
There are currently 2299 live tenders of 38779 total tenders from Switzerland on Tender Impulse. You can browse them on our Switzerland tenders page, or save a search combining Switzerland with CPV codes 45311000 - we will then email you every new match on the day it is published.
How to prepare for this bid?
Suppliers must verify technical specifications, the delivery schedules and any other intrinsic details as provided in the complete bid documents before deciding to submit their bids. All necessary certifications and supplier registrations must be undertaken before participation.
Is this tender beneficial for me?
The procurement is applicable to companies in the Electrical wiring and fitting work and related industries. If you belong to this industry, you can review the technical documents before assessing your relevance to your company.
What is the procurement trend for RETROFIT OF 6.4 kV JOULE CELLS WITH NEW 24 kV CELLS WITHOUT SF6?
The public procurement trends for RETROFIT OF 6.4 kV JOULE CELLS WITH NEW 24 kV CELLS WITHOUT SF6 can be assessed by viewing historical data and buying patterns for this product. Subscribed members can view and even download reports of tenders released in the past for their market research. This shall allow them to carefully prepare a compelling bid.
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