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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsSionSUNWELL Sàrl
SUNWELL Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of SUNWELL is the planning and design of alpine solar systems, particularly photovoltaic systems, taking into account the specific conditions of the alpine environment such as snow, wind and radiation. The company provides consulting services to enable the most efficient and safest placement of solar systems, thereby contributing to the promotion of renewable energies.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered6
Planning and dimensioning of alpine solar systems
Planning and dimensioning of alpine solar installations, including site selection, suitable zones, optimal system design and economically efficient dimensioning.
Yield modelling and energy potential analysis
Calculation of expected production profiles, electricity quantities and yield potentials for specific sites and system layouts.
Optimisation of PV design and operating control
Optimisation of system design, annual and winter production, limited areas as well as revenue including batteries and optimal control.
Snow analysis and snow cover modelling
Analysis of snow load, snow distribution on modules and ground, snow slip behaviour and the resulting production losses.
Wind load analysis
Estimation of extreme values and possible wind forces for exposed and high-alpine PV sites.
Monitoring systems for PV plants
Custom camera systems with live data transmission, panoramic images and ongoing monitoring of PV plants.
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4.0/5

SUNWELL Sàrl

Trust & reputation

ranQ Trust Score of SUNWELL Sàrl: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

SUNWELL Sàrl 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.
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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%
SUNWELL Sàrl scores 70.2 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
SUNWELL Sàrl 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%
SUNWELL Sàrl scores 5.7 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 35.5.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

SUNWELL Sàrl reaches a ranQ Trust Score of 4.0 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 54%, 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.

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Location

Rue de l'Industrie 23
1950 Sion

At a glance

Legal form
Limited Liability Company
UID
CHE-423.413.355
Founded
2020 · 6 years
Last commercial register change
August 6, 2025
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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