- Construction and installation
Grimsel 4 Pumped-Storage Power Station, Lot 1 for the reinforcement of the headwater channel and Lot 2 for the underwater gates
- Procuring office
- Kraftwerke Oberhasli AG
Corrected publication
Changed according to simap: Tender documents, Site visit, Question rounds
Für Los 2 - UW-Schützen, wurde das Eignungskriterium EK2 im Teil 0, Ziffer 4.14 angepasst.
Zusätzlich wird eine zweite, obligatorische Infoveranstaltung durchgeführt.
Genaue Details sind in den Unterlagen im Teil 0 "Angebotsbedingungen 22.10.26" unter Ziffer 4.1, 4.5 und 4.14 zu finden.
At a glance
- 22.12.2026, 16:0041 days left
- Construction and installation
- Open procedure
- In the documents
- In the documents
Is a bid worth it?
With a free profile, TEXFY checks this tender against your services and cantons: a relevance grade from A to E and a recommendation with reasons.
TEXFY assessment: Risks and notes
Mandatory site visit: check the dateImportant
According to the publication, attending is mandatory; date and place are in the note. Check there whether the visit is still ahead: missing it risks exclusion.
Bid languageNote
The bid must be in German.
No bidding consortiumNote
A joint bid with other companies is not allowed.
2 more notes
Publication correctedNote
The contracting authority changed details. The current version applies.
Online via simap onlyGood to know
Bids are submitted on simap.ch; you need a bidder account there.
What is being procured?
Scope of work
KWO is inviting tenders in two lots for the supply of armour for the headwater channel and two sets of double underwater gates for the Grimsel 4 pumped-storage power station.
The tender covers the design, manufacture, supply, installation and commissioning of the drive waterway armouring on individual sections of the drive waterway, as well as a total of four underwater gates (2x2) on the submerged side of the suction pipes for the two pump-turbines.
Scope of work of the lots
Lot 1 – Panzerung Triebwasserweg
Details of Lot 1The supplies and services essentially comprise design, calculations, engineering, technical drawings, fabrication, partial surface protection, workshop assembly, workshop testing, packaging, transport, installation, commissioning, warranty acceptance tests and the entire project and quality management for the scope of supply defined in Section 3D.
To ensure the operational safety and reliability of the plant throughout its entire service life, high quality standards are required. Furthermore, for environmental reasons, transport distances must be kept to a minimum. For these reasons, all components in contact with the working fluid must be manufactured in Europe.
Lot 2 – UW-Schützen
Details of Lot 2The supplies and services essentially comprise design, calculations, engineering, technical drawings, fabrication, partial surface protection, workshop assembly, workshop testing, packaging, transport, installation, commissioning, warranty acceptance tests, customer training and the entire project and quality management for the scope of supply defined in Section 3D.
To ensure the operational safety and reliability of the plant throughout its entire service life, high quality standards are required. Furthermore, for environmental reasons, transport distances must be kept to a minimum. For these reasons, at least the contactor enclosures, the guide and sealing frames, and the contactor panel assemblies must be manufactured in Europe.
Translated with DeepL.com (free version)
Key facts, codes and options
Key facts, codes and options
- Type of contract
- Construction and installation
- Type of construction
- Stated per lot, see Lots
- Construction service
- Stated per lot, see Lots
- Procedure
- Open procedure
- Trades
- Not evident from the available publication data.
- CPV
- CPV 45251120 – Hydro-electric plant construction work
- CPV 45248000 – Construction work for hydro-mechanical structuresonly Lot 1, Lot 2
- Options
- Stated per lot, see Lots
- Variants
- Stated per lot, see Lots
- Partial offers
- Stated per lot, see Lots
TEXFY assessment: Products, installations, quantities, technical specifications and exclusions are not structured fields of the publication. TEXFY does not analyse the free text on them: check the original text and the tender documents.
Dates
- Published
- 23.10.2026 (first published 22.09.2026)
- Documents available
- 22.09.2026 to 31.03.2027
- Questions until (round 1)past
- 03.11.2026
- Questions until (round 2)past
- 06.11.2026
bitte die Fragen zur Fragerunde 2 ausschliesslich via einkauf@kwo.ch einreichen.
- Submission deadlinenext
- 22.12.2026, 16:00
- Bid valid
- until 31.07.2027
Site visit
Mandatory according to the publicationAnstelle einer Begehung findet eine Informationsveranstaltung statt.
Sie ist für die Anbieter obligatorisch
Berichtigung 22.10.26:
Für Los 2 - UW-Schützen, wurde das Eignungskriterium EK2 im Teil 0, Ziffer 4.14 angepasst.
Aufgrund dieser Anpassung wird eine zweite, ebenfalls obligatorische Informationsveranstaltung durchgeführt. Die Anmeldefrist dafür läuft bis zum 30.10.26.
Weitere Details zur Anmeldung sind in den Unterlagen im Teil 0 "Angebotsbedingungen 22.10.26" unter Ziffer 4.1 und 4.5 zu finden.
Anbieter, die bereits an der Informationsveranstaltung vom 13.10.2026 teilgenommen haben, müssen an der zweiten Informationsveranstaltung nicht erneut teilnehmen.
Submission & documents
Online via simap.ch
Source: simap data
- Request the documents by e-mail: einkauf@kwo.ch
- German
- German
Die detaillierten Pläne (Teil 3E) werden aufgrund der Datenmenge allen Interessenten auf Anfrage bei der Beschaffungsstelle oder Projektleitung separat über das geschützte KWO iDrop Portal zum Download bereitgestellt. Die Anfrage dient ausschliesslich der technischen Bereitstellung; alle Interessenten erhalten Zugang zu denselben Unterlagen.
- Free of charge
- Through the question forum on simap.ch (registration as a bidder required). Go to the official tender (simap.ch, opens in a new tab)
Participation & award
In the documents according to the source: Content only in the tender documentsIn the tender documents: Conditions of participation, Documents to submit.
Conditions
3 conditions
- Bidding consortia
- Not allowed
- Subcontractors
- Allowed
- Dialogue
- Not provided for
Lots (2)
Lot 1 – Panzerung Triebwasserweg
- Type of contract
- Construction and installation
- Type of construction
- Civil engineering
- Construction service
- Design and execution
- Location
- 3864 Guttannen (BE)
Gebiet Grimselpass
- Execution
Installationszeitraum
2. Halbjahr 2029-2031- Additional CPV
- CPV 45248000 – Construction work for hydro-mechanical structures
- CPV 45251120 – Hydro-electric plant construction work
- Options
- Not provided for
- Variants
- Admitted
- Partial offers
- Not admitted
- Contract extension
- Not provided for
- Description
- In the original text under “Scope of work”
Suitability criteria
In the documents according to the source: Content only in the tender documentsThe suitability criteria are set out in the tender documents.
Award criteria
In the documents according to the source: Content only in the tender documentsThe award criteria are set out in the tender documents.
Lot 2 – UW-Schützen
- Type of contract
- Construction and installation
- Type of construction
- Civil engineering
- Construction service
- Design and execution
- Location
- 3864 Guttannen (BE)
Gebiet Grimselpass.
- Execution
Installationszeitraum
2. Halbjahr 2029-2030- Additional CPV
- CPV 45248000 – Construction work for hydro-mechanical structures
- CPV 45251120 – Hydro-electric plant construction work
- Options
- Not provided for
- Variants
- Admitted
- Partial offers
- Not admitted
- Contract extension
- Not provided for
- Description
- In the original text under “Scope of work”
Suitability criteria
In the documents according to the source: Content only in the tender documentsThe suitability criteria are set out in the tender documents.
Award criteria
In the documents according to the source: Content only in the tender documentsThe award criteria are set out in the tender documents.
Official source
- simap project number
- 42817
- Publication number
- 42817-05
- Covered by international agreements
- Yes
- Notice of legal remedies
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Gegen die Ausschreibung kann innert 20 Tagen seit Veröffentlichung bei der Wirtschafts-, Energie- und Umweltdirektion des Kantons Bern (WEU), Münsterplatz 3a, Postfach, 3000 Bern 8, schriftlich Beschwerde erhoben werden. Die Beschwerde ist im Doppel einzureichen und sie hat einen Antrag, die Angabe von Tatsachen und Beweismitteln, eine Begründung sowie die Unterschrift der beschwerdeführenden Person oder ihrer Vertretung zu enthalten. Die angefochtene Ausschreibung und greifbare Beweismittel sind beizulegen.
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