The Solar Keymark is a voluntary third-party certification mark for solar thermal products, demonstrating to end-users that a product conforms to the relevant European standards and fulfills additional requirements. The Solar Keymark is used in Europe and increasingly recognized worldwide.
The Solar Keymark is a CEN/CENELEC European mark scheme, solely dedicated to: Solar thermal collectors (based on European standard series EN 12975),
Factory made solar thermal systems (based on European standard series EN12976).
Solar Keymark brochure [PDF 2,08 MB]
The Solar Keymark was developed by the European Solar Thermal Industry Federation (ESTIF) and CEN (European Committee for Standardisation) in close co-operation with leading European test labs and with the support of the European Commission. It is the main quality label for solar thermal products and is widely spread across the European market and beyond.
TSU Piestany is empowered certification body and accredited testing laboratory for thermal solar products. It’s unique certification body for the Solar Keymark in Central Europe and the only accredited laboratory for the Solar Keymark in Slovak Republic.
Accredited testing laboratory for thermal solar products
Certification in the Solar Keymark system
Note: The difference between the Solar Keymark and the CE-mark
The Solar Keymark is a quality label and the CE-mark just attests that the product fulfills minimum legal requirements according to specific European directives.