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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersSionHYDRO Exploitation SA
HYDRO Exploitation SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

HYDRO Exploitation SA provides operation and maintenance services for hydroelectric installations. Its activities include engineering studies, mechanical rehabilitation and workshop manufacturing, automation and control systems, measurement and inspection services, and other specialized maintenance support.

AI-generated
Offering

Products & services

Industry:Energy Suppliers
✓ Offered12
Operation and maintenance of hydroelectric facilities
Operation, maintenance and monitoring of hydroelectric facilities, including operation of the installations and maintenance of the structures for electrical power generation.
Engineering for refurbishment and renewal of power plants
Integrated studies and projects for the refurbishment or renewal of power plants, from feasibility study to commissioning.
Commissioning coordination
Coordination of commissioning for hydroelectric installations, including planning of tests and taking into account staff and installation safety.
Mechanical refurbishment
Refurbishment of runners, overhaul of mechanical components and fabrication or machining of parts for hydraulic equipment.
Overhaul of mechanical equipment
Overhaul, maintenance and repair of mechanical components in the workshop or on site, with the equipment necessary for the interventions.
Runner refurbishment
Maintenance and repair of pump or turbine runners, in particular Francis, Pelton and Kaplan.
Manufacturing and machining of parts
Manufacture of mechanical parts and rapid machining of spare parts in the event of an operating incident.
Control and automation for hydroelectric installations
Integration of automation, information management, control systems, telecommunications and electrical protection.
Automation for large hydropower
Control and command for hydroelectric power plants, with control automation and a human-machine interface.
Automation for small hydropower
Compact solution for automatic and manual operation of a small hydropower unit, with installation safety.
Analysis and setting of electrical protections
Adaptation and setting of protection elements for transformers, electrical lines, alternators and other equipment.
Specialised maintenance services
Underwater inspection, bathymetry, cryogenic cleaning, QES services and training to support maintenance and servicing of the installations.
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4.1/5

HYDRO Exploitation SA

Trust & reputation

ranQ Trust Score of HYDRO Exploitation SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

HYDRO Exploitation SA has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
HYDRO Exploitation SA scores 92.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.82.07%
HYDRO Exploitation SA scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
HYDRO Exploitation SA scores 59.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.88.64%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.30.04%
Qualifications+0.00

HYDRO Exploitation SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Press

Media

December 16, 2024Media
Hydro Exploitation: un nouveau CEO nommé à la tête de la société
lenouvelliste.ch
November 26, 2024Media
Nant de Drance vergibt Betrieb des Pumpspeicherkraftwerks neu
nau.ch
November 26, 2024Media
Hydro Exploitation reprend le mandat d’exploitation de la centrale de Nant de Drance
lenouvelliste.ch
January 28, 2016Media
Elmar Kämpfen neuer Direktor
1815.ch

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Location

Rue de l'Industrie 10
1950 Sion

At a glance

Legal form
Corporation
UID
CHE-109.656.064
Founded
2002 · 24 years
Last commercial register change
June 3, 2026
Employees
21 to 50
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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