Blog

12-12-2023

The LONGi Hi-MO 6 module has been tested in a solar simulator

LONGi is a leading company in the production of photovoltaic modules, renowned worldwide for its commitment to developing and manufacturing modules of the highest efficiency. The Hi-MO 6 series, aimed at a wide range of customers, is especially noteworthy. But are the LONGi Hi-MO 6 series modules really as reliable as they claim? KENO decided to conduct a study on a module from this series.

Testing in the Solar Simulator

KENO recently announced the launch of a test station for PV modules. The advanced software implemented in the solar simulator ensures precision at an unprecedented level - 200 micrometres per pixel. This allows for detailed analysis and testing of photovoltaic modules from all over the world. The system enables quick and accurate electroluminescence testing in just a few seconds. KENO's priority in this project is to achieve efficiency and effectiveness in measuring a large quantity of PV modules, therefore the time for conducting tests has been significantly shortened, and KENO's R&D department can increase its productivity.

https://youtu.be/MUxnSppRYzo
KENO Solar Simulator Video

In pursuit of a precise understanding and assessment of the performance and quality of photovoltaic modules, KENO decided to conduct tests on one of the latest modules from the renowned manufacturer – LONGi. The aim of these tests was to provide reliable information about the technical parameters and quality of the module, helping customers make informed choices in the field of solar energy.

Comparison of the LONGi Module with Modules from Other Manufacturers

The study involved comparing the LONGi module with modules from other manufacturers. The tested model was the LR5-54HTH-430M, measuring 1722 x 1134 x 30 mm and with a power of 430 W, made using HPBC (Hybrid Pasivated Back Contact) technology. The study includes the maximum power output, efficiency, and power per square metre in comparison with three other photovoltaic module manufacturers. The simulator takes into account many factors, as shown in the comparison below.

Results from the Solar Simulator Study

The results from the solar simulator test clearly indicate that the LONGi Hi-MO 6 performs better than competing companies producing modules with similar parameters. As a result, the LONGi Hi-MO 6 module, with a declared STC maximum power of 430 Wp by the manufacturer, achieves an impressive 444 Wp. In this case, it achieves a positive power tolerance of 33%. The described quantities occur in strictly defined STC conditions. KENO possesses the highest quality equipment for simulating such environments and offers a module testing service that can be ordered on the KENO B2B Platform: https://b2b.keno-energy.com/verif. However, it is important to emphasise that these ideal conditions are extremely rare. Therefore, the temperature coefficients mentioned in catalogues and checked in the KENO simulator are so important. These are parameters that define how, for example, the power value changes with temperature changes. A negative coefficient tells us that as the temperature rises, the power of the module decreases. Therefore, it is important that this particular coefficient has as small an absolute value as possible. The declared power temperature coefficient value, which was -0.290%/°C, was not only confirmed in the tests but even a better result of -0.281%/°C was achieved.

KENO can confidently state that choosing LONGi Hi-MO 6 modules for building any installation operating in any conditions will be an excellent decision. Testing photovoltaic modules in a solar simulator is key because it allows for a realistic assessment of their performance and efficiency in controlled conditions, which is impossible in real-world conditions. This enables accurate comparison of different module models in terms of their ability to produce electrical energy before installation. Testing modules allows investors and clients to precisely plan their photovoltaic system, increasing confidence that the chosen modules will meet their expectations and ensure efficient solar energy production.