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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsAffoltern Am AlbisSolar-Werkstatt AG
Solar-Werkstatt AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Solar-Werkstatt AG is the planning, installation and maintenance of photovoltaic systems, power storage systems and solar island systems. The company offers all services for photovoltaic projects from a single source, including preliminary design, design, tendering, execution, commissioning and yield monitoring. It specializes in grid-connected photovoltaic systems, solar power storage and self-consumption optimization.

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Offering

Products & services

Industry:Solar & Photovoltaics
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4.2/5

Solar-Werkstatt AG

✓ Offered7
Photovoltaic systems
Photovoltaic systems for single-family homes, multi-family homes, agriculture and commercial businesses; planning, project development, installation, commissioning and support with subsidy applications and contacts with authorities.
Battery storage
Electricity and battery storage for photovoltaic systems; consulting, planning, sizing, installation and maintenance, with AC- or DC-coupled storage systems and integration into existing solar installations.
Emergency power solutions
Emergency power solutions for solar power storage systems and photovoltaic installations; automatic switchover in case of power failure, supply for essential loads, and retrofit of existing systems.
E-mobility & charging stations
Charging stations and wallboxes for private use, businesses and multi-family houses; installation of single- and three-phase solutions, PV surplus charging, load management and integration with storage and energy management.
Service, maintenance & monitoring
Service, maintenance, inspection and monitoring of solar systems; system checks, cleaning, remote monitoring, fault diagnosis, damage analysis as well as dismantling and renewal of existing photovoltaic systems.
Island systems / off-grid systems
Self-sufficient island systems without grid connection for mountain huts, holiday homes, agriculture, measurement stations and mobile systems; including storage solutions and individual planning.
Advisory, planning & project development
Personal consultation, site analysis, yield and profitability calculations, detailed planning, project development and support with tenders and subsidy applications.
Trust & reputation

ranQ Trust Score of Solar-Werkstatt AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Solar-Werkstatt AG scores 75.5 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.78.124%
  • 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.49.510%
  • 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.100.08%
Solar-Werkstatt AG scores 82.3 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.92.512%
  • 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%
Solar-Werkstatt AG scores 83.3 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).83.322%
Solar-Werkstatt AG scores 37.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Solar-Werkstatt AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 6 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 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Alte Obfelderstrasse 68
8910 Affoltern Am Albis
Opening hours
Mon
09:00 - 17:00
Tue
09:00 - 17:00
Wed
09:00 - 17:00
Thu
09:00 - 17:00
Fri
09:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-205.017.687
Founded
2014 · 12 years
Last commercial register change
October 30, 2023
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.
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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