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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsZillishassler energia alternativa ag
hassler energia alternativa ag Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Hassler Energia is the planning, installation and maintenance of sustainable energy solutions, particularly: solar systems for self-consumption and central energy supply (ZEV); battery storage as a supplement to PV systems; e-charging stations for clean e-mobility; island systems for mountainous areas without grid connection; and pellet heating as an alternative heat source. The company also offers consulting services to support customers in selecting and implementing sustainable energy solutions.

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Offering

Products & services

Industry:Solar & Photovoltaics
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hassler energia alternativa ag

Solar solutions
Solar systems for single- and multi-family homes, condominium ownership, ZEV/LEG, municipalities, agriculture, business and industrial parks; planning, installation, upgrades and building-integrated systems.
Solar consulting
Site analysis, feasibility checks and needs clarification for new solar, energy or heating systems; situation analysis prior to planning and free initial consulting for replacing a heating system.
Battery storage
Battery energy storage for private households, businesses and ZEV as an addition to the PV system; AC and DC systems, retrofitting existing installations and app monitoring.
EV charging stations
Smart wallboxes and charging infrastructure for electric cars using solar power; installation indoors and outdoors for owner-occupied homes, carports, rented parking spaces and ZEV.
Off-grid systems
Off-grid solar systems for Maiensässe, mountain huts, holiday homes, vehicles, boats and measuring facilities; self-sufficient power supply with storage batteries or alternative sources.
Pellet heating systems
ÖkoFEN pellet heating systems for single-family homes, businesses and residential areas; consulting, planning, commissioning as well as maintenance and grants consulting.
Service and maintenance
Service and maintenance contracts for PV systems and pellet heating systems; yield and condition checks, remote monitoring, on-site service, repairs and emergency on-call duty.
Trust & reputation

ranQ Trust Score of hassler energia alternativa ag: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

hassler energia alternativa ag 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.
x
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%
hassler energia alternativa ag 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%
hassler energia alternativa ag scores 83.3 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).83.322%
hassler energia alternativa ag scores 74.3 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 35.74.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

hassler energia alternativa ag reaches a ranQ Trust Score of 4.1 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

Resgia 13
7432 Zillis

At a glance

Legal form
Corporation
UID
CHE-103.363.445
Founded
1997 · 29 years
Last commercial register change
August 5, 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.100.06%
  • 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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