A recent collaboration between Maltha Glass Recycling and Saint-Gobain has facilitated progress in solar panel recycling. Maltha, a European glass recycling company and subsidiary of Renewi, has conducted a pilot project that processed 75 tonnes of solar panel glass into flat glass for reuse. The project demonstrates a method for integrating recycled glass into new production processes, contributing to material circularity.

The Challenge of Solar Panel Waste
Solar panels play a role in reducing CO2 emissions and promoting renewable energy. However, they present end-of-life waste management challenges. Large volumes of decommissioned panels require recycling solutions. While materials such as aluminium and silicon can be repurposed, glass constitutes the majority of a panel’s weight and has specific processing requirements due to its coatings and composition.

The Photovoltaic (PV) project was launched to develop recycling methods for solar panels. The initiative focuses on extracting reusable raw materials and reintegrating them into new glass production.

Recycling Process and Outcomes
Maltha, a key partner in the PV project, collaborated with Saint-Gobain, a manufacturer in the glass industry. The pilot successfully processed 75 tonnes of end-of-life solar panel glass, which was then incorporated into flat glass production. The results indicate that recycled glass can be used in architectural and interior applications.

Applications and Environmental Benefits
The findings suggest potential applications for architecture, interior design, and product design. The process offers an alternative to conventional glass manufacturing by reducing reliance on virgin materials. Identified benefits include reduced carbon footprint compared to virgin glass production, decreased raw material extraction and landfill waste, and improved circularity in architectural and industrial applications.

According to Kevin Bell, Managing Director at Maltha Group, this development supports the transition to a circular economy by demonstrating the feasibility of solar panel glass recycling.

Future Outlook
The pilot project underscores the potential for circular approaches in solar panel recycling. By integrating recycled glass into production processes, companies such as Maltha and Saint-Gobain provide an example of material reuse in sustainable design.

For architects, interior designers, and product developers, this process offers an additional recycled material option for future projects, contributing to material circularity in design and construction.

Source: Renewi
Photo: Renewi