Photovoltaics in
Chur

De-Stefani AG

Since 1973 · 1–10 empl.·4.6(10)

The core activity of De-Stefani AG is the planning, installation, maintenance and repair of building technology systems, particularly in the areas of heating, plumbing and ventilation, for single-family and multi-family homes as well as other buildings.

Ars Solaris Hächler

Since 1993 · 1–10 empl.

Nau Solar Systemtechnik GmbH

Since 2006 · 1–10 empl.·4.3(6)

The core activity of NAU Solar Systemtechnik GmbH is the planning, installation and sale of environmentally friendly energy systems, in particular: photovoltaic systems, heat pumps, solar thermal systems, storage technology, fresh water technology, wood heating systems, pellet tanks, mobile heating centers and solar roofs. The company also offers services such as installation, permitting and sales of energy systems and positions itself as a partner for environmentally friendly energy use in Switzerland.

Dorn Solar AG

Since 2023 · 1–10 empl.·4.6(14)

Dorn Solar AG provides photovoltaic installations and building-envelope services, including sheet-metal work, roofing (flat and pitched) and façade construction. The company offers services for new construction, renovation and maintenance.

Grischa Solar AG

Since 2024 · 11–20 empl.·5.0(8)

Grischa Solar AG advises on, plans and installs photovoltaic systems. Its services also include battery storage, electric mobility solutions and virtual self-consumption communities (vZEV), with support from planning through commissioning.

Mithras Technology AG

Since 2018 · 1–10 empl.

Giger + Storz AG

Since 1975 · 11–20 empl.·5.0(3)

The core activity of Giger + Storz AG is the planning, installation and maintenance of electrical systems. They offer services in the field of electrical engineering and are thus an electrical company.

Sonnbau AG

Since 2016 · 1–10 empl.·4.8(4)

Sonnbau AG plans and installs solar power plants and photovoltaic systems. Its services include analysing consumption profiles to help optimise system sizing and on-site use of solar power, as well as battery storage and mounting solutions for PV installations.

tritec AG

Since 2016 · 1–10 empl.·3.0(4)

tritec AG provides solar solutions and services for photovoltaic systems, including consultation, customised planning, installation, commissioning and maintenance. The company also operates a wholesale business with an online shop, supports large-scale projects (including financing/PV contracting) and offers service, training and online tools such as a solar calculator.

CASGRE GmbH

Since 2020 · 11–20 empl.·5.0(3)

The core activity of CASGRE Energy is the development and implementation of photovoltaic solutions for corporate customers, particularly in the field of rooftop photovoltaics for larger systems (>100 kWp / > 500 square meters). The company supports customers in the planning, development and implementation of solar power plants and also offers services such as project development, customer care and support.

Energy Group AG Zweigniederlassung Chur

Since 2025 · 21–50 empl.

Energy Group AG Zweigniederlassung Chur is an engineering company focused on building automation, energy strategy and network planning. It plans, automates and optimises technical systems across the full lifecycle of buildings, sites and networks.

Hamza Sun Solution GmbH

Since 2025 · 1–10 empl.

Hamza Sun Solution GmbH provides services for photovoltaic and solar systems. Its activities include planning, installation, maintenance, troubleshooting, remote monitoring, cleaning and optimisation of existing systems.