Photovoltaics in the
Canton of Solothurn

Kübler Haustechnik AG

Since 2000 · 11–20 empl.·4.6(22)

Kübler Haustechnik AG provides building services in heating, plumbing and sheet-metal work. Its services include planning, installation, maintenance and repair of heating and sanitary systems, as well as photovoltaic and solar thermal systems.

Südsolartechnik GmbH

Since 2019 · 1–10 empl.·5.0(13)

The core activity of Südsolartechnik GmbH encompasses the planning, installation, maintenance, and repair of solar systems, heat pumps, and electromobility solutions. This also includes specific services such as solar panel cleaning, PV checks, weed removal, battery installation and inspection, as well as the commissioning and repair of inverters.

Sunside Energy AG

Since 2021 · 1–10 empl.·5.0(9)

Sunside Energy AG plans, installs and maintains photovoltaic systems, and provides related equipment as well as solar power management and storage solutions. Its services also include charging infrastructure for electric vehicles.

Plattenstrom GmbH

Since 2023 · 11–20 empl.·5.0(26)

Plattenstrom GmbH designs, supplies and installs photovoltaic systems, including rooftop and in‑roof installations, balcony PV kits and custom solar solutions. The company sells modules, storage systems and mounting components and provides planning, permitting support, roof covering and installation services.

Solarix GmbH

Since 2023 · 1–10 empl.·5.0(31)

Solarix GmbH plans, installs and maintains solar systems for households, businesses and public institutions. Its services include consulting and photovoltaic solutions, energy storage and smart energy systems.

Tirasol GmbH

Since 2022 · 1–10 empl.·4.9(25)

The core activity of Tirasol GmbH is the planning, installation and maintenance of solar systems, as well as the provision of services in the field of energy management and electromobility. This includes in particular: The planning and installation of solar systems for private and commercial customers; The provision of services for the commissioning, maintenance and repair of solar systems; Support for the realization of solar projects, including obtaining quotes from installers and accompanying the construction process; The provision of charging solutions for electric vehicles and the integration of solar systems with electromobility solutions; Support for troubleshooting and maintenance of solar systems and energy management systems.

Elektro Zimmermann AG

Since 2009 · 1–10 empl.·5.0(7)

Elektro Zimmermann AG plans and carries out electrical installations for residential and commercial buildings, service businesses, industry and agriculture. Its services also include telecommunications and multimedia installations, building automation, lighting and video surveillance.

HF Etienne GmbH

Since 2010 · 1–10 empl.·5.0(8)

The core activity of HF Etienne GmbH is the planning, installation, maintenance and repair of heating systems, including combustion controls, boiler cleaning and 24-hour emergency services. The company also offers services in the field of renewable energies, such as photovoltaic solutions and heat pump installations.

Kunz-Solartech GmbH, Zweigniederlassung Grenchen

Since 2021 · 51–100 empl.·5.0(20)

Kunz-Solartech GmbH, Zweigniederlassung Grenchen plans and installs photovoltaic and solar systems. Its services also include energy storage solutions, maintenance and support for PV systems.

SOLEIS AG

Since 2011 · 1–10 empl.·5.0(4)

SOLEIS AG plans, installs and maintains photovoltaic systems, energy storage, heat pumps and EV charging infrastructure. Its services also include energy concepts, assessments, system cleaning and repairs, and electrical installations.

Brügger Haustechnik GmbH

Since 2011 · 1–10 empl.·4.9(15)

Brügger Haustechnik GmbH plans and installs heating, plumbing and solar systems. The company also provides solutions for controlled residential ventilation.

David Fürst Sanitär-Heizung-Solar

Since 2012 · 1–10 empl.·4.7(13)

The core activity of David Fürst company encompasses the planning, installation and maintenance of sanitary, heating and solar systems. This includes in particular: sanitary work (new construction, renovation, modernization) including ventilation systems, heating renovations and installations, assembly and maintenance of solar systems, planning and consulting of SMART HOME systems, and VR bathroom planning. The company also offers a 24-hour customer service and comprehensive service services.

Bätscher & Co. GmbH

Since 2020 · 1–10 empl.·5.0(9)

Bätscher & Co. GmbH carries out work on building envelopes, including flat and pitched roofs, sheet-metal work and façades. Its services also include solar installations, maintenance, new construction, renovation and repairs.

Ebosa Trading AG

Since 1988 · 1–10 empl.

The core activity of Ebosa Trading AG is trade and consulting in the field of solar technology, energy measurement devices and home automation. The company offers a wide range of products, including energy meters, current sensors, wall boxes, solar technology, wind generators and home automation solutions. It supports customers in the procurement and implementation of these technologies and also offers consulting services.

SE Solar GmbH

Since 1997 · 1–10 empl.

SE Solar GmbH provides consulting, planning, installation and maintenance for solar thermal systems, photovoltaic systems, wood- and pellet-fired heating systems and heat pumps. The company carries out plant and control engineering, develops custom solutions and services special combustion systems such as flameless oxidation (FLOX).

WiKo Wiedmer Elektro-Kontrollen GmbH

Since 2007 · 1–10 empl.

The core activity of WiKo Wiedmer Elektro-Kontrollen GmbH is the performance of safety inspections and controls of electrical installations, as well as the provision of services in the field of energy consulting, expert opinions and training.

Michel Ostertag GmbH

Since 2010 · 1–10 empl.

The core activity of Michel Ostertag GmbH is energy consulting, energy planning, photovoltaic systems, building physics and building thermography, particularly in the areas of energetic renovation, energy efficiency and sustainability, heating and solar as well as building physics and building thermography.

Murati Gebäudetechnik GmbH

Since 2011 · 1–10 empl.

The core activity of Murati Gebäudetechnik GmbH is the planning, installation, maintenance and repair of heating, plumbing and solar technology systems. The company also offers service maintenance and boiler descaling.

Genossenschaft OPTIMA-SOLAR Solothurn

Since 2011 · 1–10 empl.

Genossenschaft OPTIMA-SOLAR Solothurn plans, finances, builds and operates photovoltaic systems. It produces solar power and offers on-site consumption solutions as well as opportunities to invest in its installations.

Neue Energien May

Since 2012 · 1–10 empl.

Neue Energien May distributes products for photovoltaic systems and heat pumps and offers advice in these areas. It also installs heat pumps in cooperation with TCA Thermoclima.

smartvolt AG

Since 2013 · 11–20 empl.

The core activity of Smartvolt AG is the development and licensing of a foldable solar system called SmartSolarBox, designed for installation on flat roofs and other surfaces. The company provides license partners with the necessary plans, parts and training to manufacture and install the SmartSolarBox in their own production facilities.

usol GmbH

Since 2015 · 1–10 empl.

usol GmbH advises on photovoltaic systems and plans, installs and maintains solar installations for households and businesses. It also offers energy storage solutions and supports the integration of solar power into existing electrical systems.

Stark Strom GmbH

Since 2015 · 1–10 empl.

Stark Strom GmbH plans, installs and maintains electrical systems and photovoltaic installations. Its services also include solutions for optimizing on-site electricity use, energy controls, electricity storage and LED lighting.

Nyffenegger Solar GmbH

Since 2016 · 1–10 empl.

The core activity of Nyffenegger Solar GmbH is the planning, consulting, installation and commissioning of solar systems for various customer groups, including single-family homes, multi-family homes and industrial and commercial buildings. The company offers customized solar solutions, including traditional solar systems and emergency power-capable systems, and advises customers on the selection and implementation of photovoltaic systems.

SolarApp AG

Since 2020 · 11–20 empl.

The core activity of SolarApp is to offer an online platform that enables customers to configure and plan their own solar system. This includes providing a solar calculator that assesses the suitability of the roof for a solar system, calculating the profitability and creating a solar report that serves as the basis for the decision to install a solar system. Additionally, SolarApp arranges independent installers who can install the planned solar system.

SGT Energie AG

Since 2021 · 11–20 empl.

SunQuest GmbH

Since 2022 · 21–50 empl.·5.0(9)

The core activity of SunQuest GmbH is the planning, assembly and installation of solar energy systems, in particular photovoltaic systems, as well as the associated customer service and sale of corresponding services.

DF-Insta Haustechnik GmbH

Since 2018 · 1–10 empl.

The core activity of DF-Insta Haustechnik GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, plumbing, solar and controlled residential ventilation systems. The company also offers repair and renovation services and works in a network with trade partners to provide a comprehensive range of services.

DD Solar GmbH

Since 2023 · 1–10 empl.·5.0(13)

DD Solar GmbH plans and installs photovoltaic systems for households, businesses and agricultural customers. Its services also include energy storage, charging stations, maintenance, cleaning and photovoltaic contracting.

Fankhauser Solar AG

Since 2014 · 11–20 empl.·3.0(2)

The core activity of Fankhauser Solar AG is the distribution and consulting of products and solutions in the field of photovoltaics, including solar modules, inverters, storage systems, mounting systems, accessories and electromobility. The company also offers services such as consulting, planning and conception, logistics, training and events to support customers in realizing their photovoltaic projects.

SWISS PV AG

Since 2015 · 11–20 empl.·3.9(7)

The core activity of SWISS PV AG is the development, production and distribution of solar modules and related components for mounting structures. The company also offers software solutions for the configuration of solar modules and systems.

Solar Clean GmbH

Since 2022 · 1–10 empl.·5.0(8)

Solar Clean GmbH specialises in the professional cleaning of photovoltaic and solar installations. Depending on the system and the type of dirt, it uses cleaning robots, rotary brushes and purified water, and provides one-off and recurring cleaning services for residential, commercial and industrial installations.

PrimoSolar GmbH

Since 2024 · 1–10 empl.·5.0(12)

PrimoSolar GmbH provides services related to solar and renewable energy. Its work includes advising on, planning, installing and maintaining photovoltaic systems and battery storage, as well as supporting self-consumption communities and providing EV charging solutions for residential and commercial use.

JUF Immo AG

Since 1997 · 1–10 empl.·3.9(14)

The core activity of Felber Haustechnik AG encompasses the areas of sheet metal work, sanitary, heating and floor conduits. Specifically, the company offers services such as: Sheet metal work: Roof sealing for pitched and flat roofs; Sanitary: Installation, repair and maintenance of sanitary facilities; Heating: Installation, repair and maintenance of heating systems; Floor conduits: Work on water pipes, hydrants and other floor conduits. Thus, the company provides comprehensive services in the field of building technology.

Nussbaumer Elektroanlagen AG

Since 2021 · 21–50 empl.·4.5(8)

Nussbaumer Elektroanlagen AG plans and carries out electrical installations for residential, industrial and commercial properties. Its services also include consulting, lighting, photovoltaic systems and communication solutions, as well as the sale, installation, maintenance and repair of household appliances.

Hausheizung Plus GmbH

Since 2022 · 1–10 empl.·5.0(10)

The core activity of Hausheizung Plus GmbH is the provision of services in the field of heating and sanitation, including the installation, maintenance and repair of heating and sanitary systems, as well as support in the preparation of funding applications and building permit applications.

Profisolar GmbH

Since 2022 · 1–10 empl.·4.9(12)

Profisolar GmbH plans and installs photovoltaic systems for detached homes, apartment buildings and commercial properties. Its services include consultation, planning, construction and maintenance, as well as battery storage, electric-vehicle charging stations and photovoltaic contracting.

SunCraft Montage GmbH

Since 2024 · 1–10 empl.·5.0(10)

The core activity of Von Ballmoos Solar GmbH is the planning, installation and maintenance of solar power systems for single and multi-family homes, including consulting and analysis to offer innovative and fair solar power solutions.