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DirectoryEnergy & EnvironmentEnergy SuppliersJonaElektrizitätswerk Jona-Rapperswil AG
Elektrizitätswerk Jona-Rapperswil AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The company's core activity is energy supply and services, particularly in the field of electricity supply, as well as providing services in the areas of installation, networks, building technology and energy consulting.

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Offering

Products & services

Industry:Energy Suppliers
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Elektrizitätswerk Jona-Rapperswil AG

Solar & Photovoltaics
✓ Offered12
Electricity products
Three electricity products for different origins and prices: EWJR ÖKOPOWER, EWJR ÖKOPOWERPLUS and EWJR BASISPOWER; in addition, market products for large customers with annual consumption over 100 MWh.
Solar photovoltaic
Photovoltaic systems on pitched and flat roofs, including consultation, planning, building permit application, connection permit application, installation, acceptance, documentation and feed-in remuneration.
Grid services
Consulting, project management, grid construction, battery storage systems, operations management, maintenance, fault rectification, emergency power solutions, protection concepts, grid documentation, public lighting, fibre optic connections and installation inspections.
Electrical installation
Consultation and planning, maintenance and upkeep, as well as strong-current and weak-current installations for new, service and maintenance installations.
Energy consulting
Optimisation of electricity consumption, comparison tables and tips for saving electricity, as well as building energy consulting with GEAK Plus, an action plan, cost estimates and cost-effectiveness calculations.
E-mobility
Charging stations and charging solutions including installation, base infrastructure, load management, rental, management, billing and fault rectification.
Energy package
Combined package of solar photovoltaic, battery storage, electric charging station and energy manager with consultation, planning, installation and maintenance.
Battery storage
Battery storage as an addition to the photovoltaic system to increase self-consumption; on request also expandable as an emergency or backup power storage.
Heat pump
Combination of a photovoltaic system and a heat pump for sustainable heat for heating and domestic hot water, and for harnessing ambient energy.
Relocation notification
Online forms for move-in, move-out, tenant changes, owner changes and relocations within Rapperswil-Jona.
MyEWJR app
Digital customer portal with consumption overview, digital invoices, meter data, online management of personal data and relocation notification; including an energy assistant.
Grid connection
Engineering and installation of connection lines to the electrical distribution grid, including early planning of the connection point, cable routing and technical dimensioning.
Trust & reputation

ranQ Trust Score of Elektrizitätswerk Jona-Rapperswil AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Elektrizitätswerk Jona-Rapperswil AG scores 64.7 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.47.424%
  • 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.81.910%
  • 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.95.08%
Elektrizitätswerk Jona-Rapperswil AG scores 94.3 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.90.07%
Elektrizitätswerk Jona-Rapperswil AG scores 86.7 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).86.722%
Elektrizitätswerk Jona-Rapperswil AG scores 50.7 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 35.91.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Elektrizitätswerk Jona-Rapperswil AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 3.8 out of 5 stars from 24 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.8
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle3.824
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

May 4, 2026Media
EWJR wächst trotz tiefer Preise | Rapperswil-Jona
linth24.ch
September 2, 2025Media
EWJR: Neues Strompreismodell
linth24.ch
July 25, 2024Media
EWJR erweitert Batteriespeicher
linth24.ch
September 6, 2022Media
EWJR montiert bei Höfner Firma 2'000 Solarmodule
linth24.ch
April 26, 2021Media
EWJR weist trotz Pandemie gutes Ergebnis aus
linth24.ch
June 7, 2019Media
EWJR HAT DIE GRÖSSTE BATTERIE DER OSTSCHWEIZ
linth24.ch
August 31, 2012Media
Den Markt der Zukunft ermittelt
tagblatt.ch

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Comparisons

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Location

Werkstrasse 30
8645 Jona
Opening hours
Mon
07:30 - 11:45, 13:15 - 17:00
Tue
07:30 - 11:45, 13:15 - 17:00
Wed
07:30 - 11:45, 13:15 - 17:00
Thu
07:30 - 11:45, 13:15 - 17:00
Fri
07:30 - 11:45, 13:15 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.973.181
Founded
1902 · 124 years
Last commercial register change
May 12, 2026
Employees
51 to 100
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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