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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy producerAarauGreen Power Aarau AG
Green Power Aarau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Green Power Aarau AG processes green waste and other organic materials at a biogas plant to produce biogas. The upgraded gas is fed into the public gas network, and the process also yields digestate used as natural fertiliser in agriculture.

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Products & services

Industry:Energy producer
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3.9/5

Green Power Aarau AG

Waste disposal
✓ Offered7
Biogas production
Biogas from regional green waste for electricity, heat, fuel and industrial use; climate-neutral, storable and available around the clock.
Green waste recovery
Receipt, sorting, shredding and anaerobic digestion of green waste, biowaste and biomass from Aarau and the surrounding area into raw biogas.
Biowaste receipt
Receipt of garden and food-prep waste, food leftovers, kitchen waste, animal manure and other organic materials for anaerobic digestion.
Delivery of green waste by municipalities and suppliers
Coordination of green waste deliveries from participating municipalities and from suppliers, including registration and contact.
Recycling fertilizer
Digestate as a hygienised, bio-certified natural fertilizer for agriculture and arable farming; replaces fossil and chemical alternatives.
Exhaust air treatment
Treatment of exhaust air from the biomass halls using negative-pressure operation, air changes and multi-stage air scrubbers to reduce emissions.
Solar power production
Electricity generation with around 4'000 m² of solar panels; part for the plant’s own needs, surpluses fed into the public grid.
Trust & reputation

ranQ Trust Score of Green Power Aarau AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 100% · As of November 2026

Green Power Aarau AG scores 63.0 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.69.624%
  • 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.35.310%
  • 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.78.08%
Green Power Aarau AG scores 71.3 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.58.012%
  • 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.70.07%
Green Power Aarau AG scores 88.3 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).88.322%
Green Power Aarau AG scores 33.1 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 35.22.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.43.34%
Qualifications+0.00

Green Power Aarau AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 3 customer reviews. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle4.73
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

May 28, 2026Media
«Wir wurden von dieser Firma im Stich gelassen» – Biogasanlage sorgt weiterhin für dicke Luft
aargauerzeitung.ch
May 5, 2026Media
Wieder wabert Biogasanlagen-Gestank durch die Telli – was ist da los?
aargauerzeitung.ch
May 15, 2025Media
Arbeit mit Herzblut: Die Biogasanlage der Green Power AG fährt ihren Betrieb hoch
aargauerzeitung.ch
May 11, 2025Media
Öko-Strom: Einblick in die neue Aarauer Biogasanlage
telem1.ch

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Location

Neumattstrasse 62
5000 Aarau

At a glance

Legal form
Corporation
UID
CHE-133.768.953
Founded
2022 · 4 years
Last commercial register change
January 23, 2026
Employees
11 to 20

Active in 1 of 26 cantons

  • AGAargau
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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