Solar hot water — up to 70% savings
Solar thermal collectors convert solar radiation into heat to produce your domestic hot water and, depending on the installation, support your heating system.
Solar heat, triple benefit
Free energy
The sun is an inexhaustible energy source. Once the installation is paid off, thermal energy is almost free.
Real savings
Reduce your water heating bill by 50 to 70% depending on your location and installation size.
Zero carbon footprint
No CO₂ emissions during operation. Actively contribute to Switzerland's energy transition.
From installation to warmth
Thermal study
Analysis of your hot water needs, roof orientation and local sunshine.
Collector choice
Selection between flat-plate or vacuum tube collectors based on your roof and goals.
Installation & integration
Collector fitting, connection to the solar tank and integration with your existing heating system.
Optimisation & maintenance
Controller adjustment, performance monitoring and periodic maintenance for longevity.
Solar thermal without compromise
Hot water year-round
Integrated backup heating to guarantee hot water even in winter or during extended cloudy periods.
Return on investment
Typical ROI of 7 to 12 years depending on the canton and available subsidies.
Eco-responsible
European-made collectors, lifespan over 25 years, recyclable at end of life.
Swiss climate-ready
Even under a partly cloudy sky, our systems produce 60 to 70% of the required energy.
They chose independence.
Clean installation. Our bills dropped by 65% and the monitoring app is super intuitive.
We paired solar with a heat pump. The Opus team was ultra-professional from A to Z.
The fact that they handle all the administrative subsidy paperwork tipped the scale. Perfect.
Heat your water with the sun
Request your free study. We calculate your potential savings and available subsidies in your canton.
Request my free study