During Intersolar Europe 2026 in Munich, Germany, GCL System Integration Technology Co., Ltd. (“GCL SI”) announced significant certification milestones across its two core photovoltaic technologies, further strengthening its global competitiveness in high-efficiency solar modules.
On the reliability side, GCL SiRo TOPCon photovoltaic modules were recognized as “Top Performer” products in Kiwa PVEL’s 2026 PV Module Reliability Scorecard. The modules demonstrated strong and consistent performance across five key stress test categories, including thermal cycling (TC), damp heat (DH), potential-induced degradation (PID), mechanical stress sequence (MSS), and light-induced degradation, including LID+LETID, validating their long-term durability under high-temperature, high-humidity, and complex electrical stress conditions.
Kiwa PVEL’s PV Module Reliability Scorecard is widely recognized as one of the solar industry’s most trusted independent benchmarking programs. Through its Product Qualification Program (PQP), modules undergo a series of rigorous stress tests to evaluate long-term reliability under real-world operating conditions. The 2026 Scorecard also introduced a new UV-induced degradation (UVID) metric, reflecting evolving industry expectations for long-term field performance. Within this framework, GCL SiRo TOPCon modules achieved Top Performer status across five core reliability categories.
In parallel, GCL’s back-contact (BC) photovoltaic modules have successfully passed TÜV certification, in full compliance with IEC 61215:2021 module design qualification standards and IEC 61730-1/-2:2023 safety requirements. This certification further confirms the BC modules’ structural integrity, electrical safety, and long-term operational stability under internationally recognized testing frameworks.
Together, the dual validation from PVEL and TÜV establishes a comprehensive certification matrix across GCL’s TOPCon and BC technology. This reinforces the company’s ability to independently validate performance, reliability, and safety across multiple high-efficiency module architectures, strengthening its position in the global photovoltaic market.
The combination of third-party reliability benchmarking and international safety certification provides a solid foundation for downstream applications, particularly in residential, commercial, and utility-scale solar projects where bankability and long-term performance are critical decision factors.
Looking ahead, GCL will continue to advance both TOPCon and BC technology in parallel. Through continuous material innovation, cell architecture optimization, and manufacturing system upgrades, the company aims to deliver higher-efficiency, more reliable photovoltaic solutions to support Europe's and global energy transition markets.
