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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsMelssolplan ag
solplan ag Logo
Verified· 3 sourcesTrust Score
Summary

About the company

solplan ag plans, installs and connects photovoltaic systems. The company also offers solutions for off-grid systems, grid-connected systems, electrical connections, and related components and services for solar installations.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered5
Photovoltaic systems
Planning, installation, electrical connection and commissioning of photovoltaic systems; preliminary clarifications, approvals, ordering, delivery and registration for the one-off payment with Pronovo.
Electric storage heating
Inspection and repair of electric storage heaters, spare parts for central storage heaters, service contracts and maintenance for electric central storage heaters.
Electrical service
Service, maintenance and sale of electrical appliances; development of controls, repair and service, LED replacement and maintenance contracts for electric storage heaters and central storage heaters.
SolarShop off-grid system
Online enquiry and sales of components for off-grid systems: batteries, modules, charge controllers and inverters.
Snow and wind load calculator
Free snow load calculator for planned solar systems as well as the Swiss wind load map for site and roof assessment.
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4.1/5

solplan ag

Trust & reputation

ranQ Trust Score of solplan ag: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

solplan ag scores 63.6 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.65.024%
  • 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.88.08%
solplan ag scores 84.6 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.97.712%
  • 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%
solplan ag 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%
solplan ag scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

solplan ag reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 4 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
4.3
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle4.34
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Glaserweg 9
8887 Mels

At a glance

Legal form
Corporation
UID
CHE-333.492.746
Founded
2012 · 14 years
Last commercial register change
September 24, 2012
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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