Trina Solar’s Vertex modules (600W & 550W), using 210mm size cells, are characterised by high power, high efficiency and high reliability and are suitable for large-scale ground mounted PV power plants and large industrial and commercial rooftop projects. Besides Trina Solar's PERC and multi-busbar technology, they also adapt to a low-voltage and high-string power design to increase the power of single-string setups by more than 40 per cent. At the same time, it integrates non-destructive cell cutting, high-density cell interconnection. The glass-glass modules also meet the highest fire protection rating of Class A of the IEC 61730 standard.
The short-circuit current (Isc) and maximum output power (Pmax) of the 600W and 550W modules have increased by more than 10 per cent compared to the last generation. According to the IEC 62915 photovoltaic module retest guidelines, various types of laboratory approvals and safety tests are required. The design-related qualification and type approval is done by applying temperature cycling (TC200), hot spot (HS) and diode heating and function (BD) tests. In a high string power setup, the module's Isc is accordingly higher. The test cycle foresees increasing the current, which brings usually poses some challenges to the module design and materials. However, the Vertex Series were designed to meet more severe challenges and passed this stringent test. At the same time, due to the larger cell size and ultra-high module current, the supporting junction box also has to be upgraded according to the IEC62790 standard.
TÜV Rheinland shared its own experience
Mr. Zou Chicheng, Vice President of Solar Services at TÜV Rheinland Greater China, said: “600W+ ultra-high-power modules are an important direction for the development of the photovoltaic industry. As members of the 600W+ Photovoltaic Open Innovation Ecological Alliance, Trina Solar and TÜV Rheinland play key roles to help and promote the development of 600W+ ultra-high-power modules. From the beginning of the research and development stage of the Trina Vertex Series modules, TÜV Rheinland has participated in the discussion and shared its own experience in product safety and reliability. Ultra-high-power modules mean that the current is further increased. To eliminate the impact of high current is a challenge for manufacturers, and it also puts forward higher requirements for the capabilities of third-party certification agencies. Trina Solar’s Vertex 600W+ modules have passed TÜV Rheinland's comprehensive rigorous test and successfully passed IEC certifications, becoming the industry’s first 600W PV module certified by a third-party organization."
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Zhang Yingbin, Head of Product Strategy and Marketing Department of Trina Solar, said: “The Vertex ultra-high power module is based on the 210/M12 cell technology, combining Trina’s more than 20 years of technological experience, R&D team and domestic intelligent manufacturing base. Trina Solar has also been cooperating with third-party organizations to jointly explore the testing methods and evaluation standards for the long-term reliability of modules. Reaching the TÜV Rheinland reliability certification is a third party recognition. It is an important part of Trina Solar’s definition of the new high reliability warranty scheme for the Vertex series modules.” (mfo)
