Start date
September 1, 2013
48 months
End date
Overall budget
5.1M €
Number of partners
Dr. Volker Ritter
Project Coordinator
University of Liechtenstein
Václav Smítka, Ph.D.
Programme Manager
AMIRES s.r.o.

Solar Thermal Glass Facades with Adjustable Transparency (FLUIDGLASS)


The FLUIDGLASS project develops a new and innovative concept for multifunctional solar thermal glass facades systems. The FLUIDGLASS approach turns passive glass facades into active transparent solar collectors while at the same time controlling the energy flow through the building envelope.

FLUIDGLASS unites four key functionalities in one integrated system: The system firstly acts as a fully transparent solar thermal collector, which enables harvesting of solar energy even in buildings with large glass share. It secondly acts as transparent insulation layer and thirdly controls the solar radiation transmission and inner glass surface temperature thus increasing the thermal user comfort and reducing the demand for heating, cooling and lighting. At the same time FLUIDGLASS substitutes conventional HVAC components such as cooling and heating panels.

Replacing four different systems by one, FLUIDGLASS brings a significant cost advantage compared to existing solutions.. FLUIDGLASS increases the thermal performance of the whole building resulting in energy savings potential of 50%-70% for retrofitting and 20%-30% for new low energy buildings while the comfort for the user is significantly improved at the same time. Compared to state-of-the-art solar collectors FLUIDGLASS has the elegant but neutral aesthetics of clear glass. This allows full design freedom for the architect in new built applications and enables retrofits that do not destroy the original look of an existing building.

The FLUIDGLASS system will be validated in different climate conditions. The consortium brings together partners experienced in glass architecture, building simulation and energy management but also in experimental testing, HVAC systems, manufacturing of glazing units and construction of facades. It is very well balanced between RTD and industrial sectors covering the whole innovation value chain of the future building skin and gives an important role to participating SMEs.


AMIRES was involved in the project’s preparatory phase and in the negotiations. Within the project it is responsible for administrative project management and for dissemination of results.


  • Project partners:
    • University of Liechtenstein, Liechtenstein
    • Mayer Glastechnik GmbH, Austria
    • Interstate University of Applied Sciences and Technology, Switzerland
    • Technical University of Munich, Germany
    • GLASSX AG, Switzerland
    • HOVAL Aktiengesellschaft, Liechtenstein
    • Commisariat à l’Energie Atomique et aux Energies Alternatives (CEA-INES), France
    • University of Stuttgart, Germany
    • Cyprus Research and Innovation Center, Cyprus
    • ALCOA Europe Commercial SAS (Kawneer Innovation Centre), France
    • AMIRES S.R.O., Czech Republic


This project has received funding from the European Union Seventh Framework Programme Grant Agreement No. 608509, project FLUIDGLASS.