Hanwha Qcells’ perovskite/silicon tandem solar module has successfully passed critical stress tests for solar cell reliability, securing certification from Germany’s TÜV Rheinland.
The module features a perovskite top cell utilizing Hanwha Qcells’ proprietary technology and a Q.ANTUM crystalline silicon bottom cell incorporating the company’s advanced wafer-based innovation. It withstood stringent IEC standard stress tests, including high-intensity 15 kWh/m² UV preconditioning, 200 thermal cycles, 10 damp-heat freeze cycles, and a 1,000-hour damp-heat durability assessment.
Danielle Merfeld, Global Chief Technology Officer at Hanwha Qcells, emphasized the breakthrough nature of the achievement, noting it marks the first time a perovskite/silicon tandem module has passed such rigorous stress tests. Fabian Fertig, Head of Tandem Development at Qcells Germany, revealed that both the tested cells and modules were manufactured using equipment from the company’s German R&D pilot line and production processes tailored for large-scale commercialization, underscoring the technology’s market readiness. “Qcells has demonstrated that tandem technology now meets performance benchmarks critical for commercial adoption,” he stated.
This milestone follows Hanwha Qcells’ December 2024 world-record achievement of 28.6% efficiency for its M10-sized perovskite/silicon tandem solar cell. The module’s successful certification further bolsters momentum toward the technology’s commercial deployment.
