During the test period, Tiger Neo 3.0 modules recorded a cumulative generation of 76.17 kWh/kW, compared to 73.53 kWh/kW for the N‑type BC reference modules. The advantage was especially pronounced under low‑light conditions. On a typical overcast day (February 23), Tiger Neo 3.0 modules achieved a 4.02% per‑watt gain before 8:00 AM, entering effective power output earlier than the reference. After 3:00 PM, the gain expanded to 7.70%, effectively extending the evening generation window. Throughout the core daylight hours (9:00 AM to 3:00 PM), the gain remained stable between 3.51% and 4.12%, confirming all‑day performance consistency.
The test was designed to isolate front‑side low‑light performance. Both module types were installed flat at a 0° tilt on a color‑coated steel tile roof with minimal ground clearance, virtually eliminating any bifacial contribution. Even without rear‑side gain, Tiger Neo 3.0 modules achieved significant generation advantages, proving that the benefit stems entirely from superior low‑light response.
From a technical perspective, the TOPCon cell structure used in Tiger Neo 3.0 modules naturally limits leakage current pathways to the cell edges, providing more effective control than the complex interdigitated back‑contact architecture of N‑type BC modules, which creates dense leakage points and sustained losses under low irradiance. With optimized interconnection resistance and an ultra‑thin tunnel oxide layer, Tiger Neo 3.0 modules maintain higher current collection efficiency and fill factor in challenging light environments.
For distributed rooftop PV projects that face frequent cloud cover, extended morning and evening low‑light periods, and flat mounting configurations where bifacial effects are limited, the Tiger Neo 3.0 module effectively captures off‑peak sunlight and extends usable generation hours, delivering quantifiable long‑term yield improvements for end customers.
Conclusion
The Jiangmen field test confirms that Tiger Neo 3.0 modules deliver all‑weather performance advantages in rooftop applications, achieving a 3.58% average power gain over N‑type BC modules—with the advantage widening to 7.70% under evening low‑light conditions. Notably, the test eliminated bifacial effects by using a flat 0° tilt on a color‑coated steel roof with minimal ground clearance, proving that the gain stems entirely from superior front‑side low‑light response. Technically, the TOPCon cell structure in Tiger Neo 3.0 modules confines leakage pathways to cell edges, enabling better leakage current control than the complex interdigitated back‑contact architecture of BC modules, which suffers from dense leakage points and sustained losses under low irradiance. With optimized interconnection resistance and an ultra‑thin tunnel oxide layer, Tiger Neo 3.0 modules maintain high current collection efficiency and fill factor even in challenging light environments. For distributed PV projects facing frequent cloud cover, extended low‑light periods, and flat mounting configurations, Tiger Neo 3.0 effectively harnesses off‑peak sunlight and extends generation hours, delivering quantifiable long‑term yield improvements.
