Results have been published from an eight-month long PV power generation performance comparison exercise carried out on the rooftop of a commercial building in Xi’an, the data collated indicating that LONGi Hi-MO 9 modules, equipped with second-generation BC technology, significantly surpassed TOPCon modules both in generation efficiency and cumulative power output, with a total energy yield exceeding that of TOPCon by 7.74%.
The demonstration platform ensured consistency in experimental conditions by using the same mounting systems and angles and connecting identical cables to the same inverters. The power plant operated continuously without obstruction, comparing the generation performance of the Hi-MO 9 modules, enhanced with second-generation BC technology, to TOPCon equivalents.
Demonstration data from March to October 2024 indicated that Hi-MO 9’s single-kilowatt generation capacity showed a 1.01% increase over the TOPCon modules, with a peak daily increase reaching up to 1.73%. In terms of cumulative energy output, the Hi-MO 9 modules generated a total of 1260.59 kWh — 7.74% more than TOPCon’s 1170.03 kWh.
Hi-MO 9’s generation capability can be largely attributed to its higher conversion efficiency and low-light performance. Power plant projects using efficient second-generation BC technology modules are being implemented globally at an increasing pace, with Hi-MO 9 modules poised to deliver to more users the benefits of an exceptional energy return and reliable investment security.
