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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsMarin-EpagnierELKA Energy Sàrl
ELKA Energy Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of ELKA Energy is the planning, installation and maintenance of renewable energy systems, particularly: photovoltaic systems, heat pumps, electromobility solutions, carports with integrated photovoltaic systems, and energy management systems. The company also offers consulting and analysis services for optimizing energy consumption and production, as well as a comprehensive service for the maintenance and upkeep of systems.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered8
Photovoltaic installations
Photovoltaic installations to supply homes, with analysis, administrative procedures, installation, connection, commissioning, monitoring and maintenance.
Project «All in One»
Project management for the energy transition from consultation to implementation, with planning, administrative procedures, electrical work, commissioning and subsidy applications.
Heat pumps
Heating and domestic hot water solutions with heat pumps, with analysis, installation, connection, commissioning, monitoring and maintenance.
Electric mobility
EV charging stations installed in garages, vehicle shelters or parking spaces, with possible power supply via a photovoltaic installation.
Carport
Photovoltaic carports to shelter cars and two-wheelers, while producing clean electricity and supplying a charging station, a home or a heat pump.
Energy analysis
Energy analysis of the building with CECB and CECB+, assessment of the energy potential, renovation variants, recommendations and calculation of subsidies.
Inspection & Maintenance
Inspection, cleaning and, if necessary, periodic repair of photovoltaic installations, including checks of the modules, cabling and safety.
RCP
Grouping for the own consumption of solar electricity in PPE or a building, with smart metering, automated invoicing, online monitoring and management of collections.
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4.4/5

ELKA Energy Sàrl

Trust & reputation

ranQ Trust Score of ELKA Energy Sàrl: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

ELKA Energy Sàrl scores 92.0 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.91.924%
  • 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.89.710%
  • 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.95.08%
ELKA Energy Sàrl scores 70.2 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.70.212%
  • 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.55.07%
ELKA Energy Sàrl scores 85.0 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).85.022%
ELKA Energy Sàrl scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ELKA Energy Sàrl reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 33 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 33 reviews across all connected sources

Sources
GGoogle533
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Av. des Champs-Montants 10 B
2074 Marin-Epagnier
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-437.664.001
Founded
2020 · 6 years
Last commercial register change
September 23, 2026
Employees
1 to 10
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.
88.0
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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