SOLID – the innovative solution for heat and cold
We at SOLID constantly strive for the customer’s best option to use solar thermal energy. We draw on over 25 years of experience and a team of highly-qualified employees offering customer-tailored solutions. With the know-how and success of having realized over 300 solar systems worldwide constantly pursuing improvement and innovation.
Our Products
Success Stories












Franziskus Hospital Harderberg
SOLID Products
- Solar Cooling
- Solar Hot Water & Heating
- Solar District Heating





United World College of South East Asia (UWCSEA),Singapore
SOLID Products
- Solar Cooling
- Solar Hot Water & Heating

Did you know?
Back in 2013 we commissioned the solar cooling system that provides cooling for over 4000 pupils.
Click here to learn more.We have competences and expertiese in planning and commissioning system solutions worldwide. And we train local partner, because we believe sharing makes the world a better place.
Click here to learn more.Research affects innovation. Innovation is the key to success. Research is our passion. Wordwide, we have international research partners to find better solutions.
Research affects innovation. Innovation is the key to success. Research is our passion. Wordwide, we have international research partners to find better solutions.
To find your best solution we think and act outside the box.
Click here to learn more.We are very thankful for this continuous partnership and hope for many more years.
This leads to increased attraction to young people.