The China Photovoltaic Testing Centre (CPVT) has conducted outdoor empirical testing of LONGi’s Hi-MO X6 ‘Guardian’ (Anti-Dust Design) modules at its outdoor testing base in Yinchuan. Testing took place over a period of seven months, between September 2023 and March 2024, results demonstrating a significant power generation gain compared to other modules, with a monthly relative gain of 2.84%. The highest monthly gain occurred in January 2024, reaching 5.4%, with the maximum daily gain exceeding 10%.
The CPVT, China’s first national-level photovoltaic product quality inspection centre, whose Yinchuan base saw the recent launch of LONGi’s ‘world first’ pilot plant for HPBC 2.0 modules, also conducted comparative testing based on the IEC 63556 standard, evaluating the comprehensive performance of the company’s BC modules against other current mainstream TOPCon equivalents. These results also indicated that the degradation of the BC modules remained at around 2%.
LONGi has carried out its own two-month testing exercise at an empirical power plant at its Xi’An headquarters, comparing Hi-MO X6 Max modules with TOPCon products from four other brands. Tests were carried out in the same location, utilizing modules with identical rated power, an installation angle of 20° and the same inverters and cabling, in an environment with no surrounding obstructions. The results once again showed that Hi-MO X6 Max achieved an average power generation gain of 2.6% per watt compared to the TOPCon modules, a figure consistent with the testing results from the CPVT testing base.
Group String 1 – LONGi Hi-MO X6 Guardian (Anti-dust)
Group String 2 – Other modules
