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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersMartignyÉlectricité d'Émosson SA
Électricité d'Émosson SA Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Electricité d'Emosson SA is the production of electrical energy through hydropower, particularly through the operation of hydroelectric power plants, such as the Barrage d'Emosson, and the generation of energy from water resources.

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Products & services

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4.1/5

Électricité d'Émosson SA

5
Hydropower generation
Renewable electricity generation from the Emosson dam, with two hydroelectric power stations supplying nearly 3% of the electricity produced in Switzerland.
Operation of a hydroelectric installation
Operation of the Emosson installation with dam, intakes, collectors, pumping station and the Vallorcine and La Bâtiaz power stations.
Management of reservoir water and pumped storage
Management of water stored by the dam, with flexible generation, pumped storage, covering peak load demands and contributing to grid stability.
Operation and maintenance of hydraulic structures
Daily operation of the structures, monitoring the control room, tracking the machines and external sites, with on-call duty 24/7, 7 days a week.
Environmental measures for hydropower structures
Remediation and renaturation of watercourses, maintaining residual flows, fish passes, environmental monitoring of construction sites and adapted operating manoeuvres.
Trust & reputation

ranQ Trust Score of Électricité d'Émosson SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Électricité d'Émosson SA scores 55.2 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.67.924%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.40.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Électricité d'Émosson 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%
Électricité d'Émosson SA scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Électricité d'Émosson SA scores 61.7 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 35.80.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.43.34%
Qualifications+0.00

Électricité d'Émosson SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 4 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle4.54
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

September 18, 2025Media
Le barrage d’Emosson fête ses 50 ans en Valais
blick.ch
November 1, 2021Media
Au barrage d'Emosson, les droits d'eau des CFF sont maintenus
rts.ch
February 6, 2012Media
Le lac du barrage d'Emosson sera vidangé
rts.ch

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Location

Chemin du Gilloud 1
1920 Martigny
Opening hours
Mon
08:00 - 12:00, 14:00 - 16:30
Tue
08:00 - 12:00, 14:00 - 16:30
Wed
08:00 - 12:00, 14:00 - 16:30
Thu
08:00 - 12:00, 14:00 - 16:30
Fri
08:00 - 12:00, 14:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.760.633
Founded
1954 · 72 years
Last commercial register change
April 30, 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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