Until now, they have mostly ended up in the recycling centre, although many of them still work or could be repaired with little effort. This is precisely where the WattsOK? research project comes in. Under the leadership of the AIT Austrian Institute of Technology, a consortium of leading companies is working on making used PV modules fit for a second life with the help of artificial intelligence, robotics and data-based analyses.
How high-tech saves old modules
The project brings together various areas of expertise: 2nd Cycle FlexCo is developing an innovative multi-sensor system that checks used modules optically, electrically and thermally. PROFACTOR GmbH is responsible for the integration of modern robotic solutions that handle modules precisely and replace plug connections or cables as required. TÜV Austria is responsible for developing the data interfaces and test procedures to enable automated decisions on reuse or recycling. METRAN, a specialist in metal recycling processes, is contributing its expertise in sustainable material recovery, while the University of Leoben is scientifically evaluating the environmental and resource balances.
At the heart of the project is a digitally controlled inspection process: an AI uses cameras and sensors to detect cracks, cell damage or soiling, analyses the performance data and decides whether a module can be reused. All information is stored in a central database. This creates traceability and facilitates future scaling. Robots handle the modules safely, enabling efficient and safe processing.
A model for the circular economy
WattsOK? shows how digitalisation and sustainability can work together. Instead of rashly recycling valuable materials such as glass, aluminium and silicon, the full potential of existing modules is used. This saves energy, costs and resources and opens up new markets for recycled PV modules.
#schongenial, when research, technology and environmental awareness go hand in hand and prove that clever ideas and high-tech can help to make the energy transition truly sustainable.
