Trinasolar’s Vertex N 720W modules have excelled in stringent UV testing with an industry-leading degradation of 1.6% after being exposed to 300kWh/m² of frontal UV irradiation (UV300), certified by China’s General Certification Center.
The performance of PV modules under UV irradiation is critical for long-term reliability, with the CGC’s UV300 testing conducted at 20 times the exposure required for basic IEC UV certification (UV 15) and estimated to be equal to four years of field UV exposure.
For the Trina module tested, EL imaging shows that the cells have no visible defects, with the performance of each module cell remaining consistent. The modules also passed both insulation and wet leakage testing following each UV test cycle.
Source：CGC
RETC has this year incorporated UVID in its PVMI thresher testing for the first time. In the UVID category, Trina modules withstood UV220 exposure with less than 2% degradation in maximum power. The Vertex N 625W module was one of only two modules to meet RETC’s UVID high achiever criteria, displaying 1.53% and 0.94% degradation respectively at the front and rear.
RETC chief executive and president Cherif Kedir commented at the time: “Trina has had the lowest degradation rates of any manufacturers we tested this year, so its product has done amazingly well.”
“Great product reliability reflects not only technical excellence but also a commitment to customer experience and social responsibility,” added Trina head of global branding and marketing, Yunduan Cao.