-40°C Extreme Low! 3 Meters of Snow! Risen Energy Hyper-ion HJT Modules Successfully Passed the IEC Extreme Low-temperature Load Test
As the global energy transition accelerates, photovoltaic (PV) technology is emerging as a key player in the renewable energy revolution. Solar power installations are no longer limited to mild climates, they are now also being deployed in extreme environments such as high latitudes, mountainous regions, and areas with intense cold or heat. In frigid regions such as Northern Europe, Russia, and Canada, PV modules must not only maintain stable performance under severe low temperatures but also withstand long-term heavy snow load. In addition, rapid temperature changes and humidity fluctuations in these regions can increase internal mechanical stress and potentially impair the electrical performance of the modules. Therefore, ensuring efficient and reliable operation of PV modules in such extreme conditions has become a common concern for the industry and the public.
To address these challenges, the International Electrotechnical Commission (IEC) has set up the IEC TS 63209-1:2021 standard, “Photovoltaic modules - Extended-stress testing”, which aims to comprehensively evaluate the long-term durability and reliability of PV modules under extreme stress conditions. One of the most demanding parts of this standard is test sequences 2, which assesses mechanical Stress. This test simulates various mechanical loads that modules may encounter in actual applications, including wind pressure, snow load, and other external load, to ensure the structural integrity and reliable operation of PV modules in harsh environments.
To validate the weather resistance and long-term reliability of Hyper-ion HJT modules in extremely low temperature, a stringent test scheme was conducted by an authoritative third-party institution. Based on the IEC TS 63209-1:2021 standard with a stricter testing protocol, the ambient temperature is lowered from conventional 25℃ to extreme -40℃ during the static mechanical load test. The modules are subjected to pressures of 5400Pa on the front side and 2400Pa on the rear side (the conventional standard is 2400Pa on both sides). In the dynamic mechanical load test, the modules are subjected to 50 thermal cycles and 10 humidity freeze cycles in addition to a pressure of 1000Pa on both sides. The rigorous testing is designed to simulate potential extreme temperature fluctuations and humidity variations across different climate regions, providing a comprehensive assessment of the module's weather resistance and structural integrity.
Risen Energy Hyper-ion HJT modules successfully passed this stringent test, demonstrating high reliability and stable power generation performance under extreme low-temperature and complex stress environments. This achievement highlights Risen Energy's strong capabilities in technological innovation and product development. Looking ahead, Risen Energy will continue to drive advancements in PV technology, delivering more reliable and efficient solutions for global solar market customers.