I. Key Points
Leading Total Power Generation: During the test period, the Tiger Neo 3.0 achieved a cumulative per-watt power generation gain of 2.38% compared to N-Type BC competitors of the same power rating
Significant Bifaciality Gain: The Tiger Neo 3.0 achieved a bifaciality ratio up to85% ± 5%, significantly higher than that of the N-type BC modules tested at the same site (bifaciality ratio of 75% ± 5%). In a grassland ground scenario, the power gain per watt reached up to 5.34% during the 7:00–8:00 time slot.
1. Leading Overall Power Generation
The power generation comparison test at the Sanya, Hainan demonstration project was conducted from May 1, 2026, to July 31, 2026. Measured data shows that during the test period, JinkoSolar’ s Tiger Neo 3.0 modules achieved a cumulative power generation of 440.40 kWh/kW, while N-type BC modules of the same power rating recorded 430.15 kWh/kW. The Tiger Neo 3.0 achieved a stable power generation gain of 2.38% per watt, fully demonstrating its comprehensive power generation advantages in southern China’ s high-temperature, high-humidity grassland ground-mounted power plant scenarios.
2. Significant Gain in Bifaciality
Reflections from the ground (grass) provide considerable additional irradiance to the rear side of the modules, and the level of bifaciality directly determines whether this rear-side irradiance can be fully captured and converted. Noon irradiance is the strongest, making it the optimal observation window for evaluating bifaciality levels; the Tiger Neo 3.0’ s bifaciality is approximately 10 percentage points higher than that of the N-type BC module, and this difference is fully realized as a rear-side power generation gain: during the 11:00–13:00 time slot, the power generation gain per watt reaches 1.93%. From a technical perspective, the Tiger Neo 3.0 , thanks to its high bifaciality and the low-loss rear-side design enabled by MAX-graphical enhancement technology, more effectively captures and converts rear-side irradiation under grassland ground reflection conditions; in contrast, N-type BC modules suffer from greater losses due to rear-side grid line shading and have a lower bifaciality, resulting in relatively limited rear-side power generation gains.
II. Project Background
To verify the high bifacial power generation performance of the Tiger Neo 3.0 in real-world operating conditions and to explore its practical application value in typical ground-mounted power plant scenarios in southern China, the China Certification Center (CGC) conducted a comparative field test between the Tiger Neo 3.0 and N-type BC modules in Sanya, Hainan.
Located in the tropics, Hainan features long hours of sunshine and intense solar radiation, along with year-round high temperatures and humidity, making it a typical region for evaluating the comprehensive power generation performance and bifaciality of solar modules. Furthermore, with the rapid development of ground-mounted power plants in southern China and Southeast Asia, grassy terrain has become a common installation scenario for power plants in tropical and subtropical regions. Therefore, this project selected fixed mounting structures on grassy terrain as the demonstration site to ensure that the test results more closely reflect the actual operating conditions of local power plant projects.
III. Project Design
To ensure the objectivity and validity of the comparison results, this project adopted a string-level parallel comparison approach, strictly controlling variables to ensure data validity.
1. Test Samples: Nine Tiger Neo 3.0 modules (rated power: 650 W) and nine N-type BC modules of the same power rating (rated power: 650 W) were selected. Both types of modules are bifacial, and each test group has a capacity of 5.85 kW.
2. Installation Method: Both sets of modules were installed using fixed mounting brackets at a tilt angle of 10° , approximately 1 meter above the ground. They were oriented in the same direction with no surrounding obstructions, and the ground was grassy, ensuring that irradiation conditions were essentially the same;
3. Purpose of Comparison: The fixed-bracket installation on grassy ground reflects power generation capacity under typical tropical installation conditions. The study focuses on evaluating the comprehensive power generation performance of the two types of modules in high-temperature, high-humidity environments and under conditions of rear-side reflected irradiation;
4. Electrical Configuration: Two PV strings are each connected to a string inverter of the same model, utilizing independent MPPT channels to simultaneously collect power generation data;
5. Monitoring Period: May 1, 2026, to July 31, 2026, covering a nearly three-month operational cycle;
6. Key monitoring metrics include: cumulative power generation per watt (kWh/kW), time-segmented power generation per watt (kWh/kW), relative power generation gain (%), and irradiance (W/m²).
IV. Data Insights
Located in the tropics, Sanya features intense irradiance and long hours of sunshine. The grassy ground provides abundant rear-side reflected irradiance for the modules, and the Tiger Neo 3.0’ s high bifaciality advantage can be verified from the following two dimensions.
1. Prominent bifaciality gain: Time-segmented measurement data show that during the peak irradiance period from 11:00 a.m. to 1:00 p.m., the Tiger Neo 3.0 achieved a per-watt gain of 1.93%. Compared to N-type BC modules, the Tiger Neo 3.0 more efficiently converts scattered and reflected light from the grassy ground into additional power generation during midday—when rear-side reflection is at its peak—thus fully highlighting its bifaciality advantage;
2. Stable Gain Across All Time Periods: Throughout the entire testing cycle, the Tiger Neo 3.0 consistently maintained a positive gain over N-type BC modules, with a cumulative gain per watt reaching 2.38%. It did not experience any gain degradation due to the harsh environment of high temperatures and humidity, demonstrating stable and reliable performance across all time periods.
V. Analysis of Principles
From a technical perspective, the Tiger Neo 3.0’ s high bifaciality advantage stems primarily from structural design and process innovations. N-type TOPCon inherently features high bifaciality, and JinkoSolar’ s Tiger Neo 3.0 incorporates the unique MAX-patterned enhancement technology. Through the selective layout of the rear poly layer, it significantly reduces rear-side irradiation losses, achieving a bifaciality up to85% ± 5%.
In contrast, in N-type BC cells, both the front and back grid lines are located on the rear side. The shading losses caused by the rear grid lines and the patterning process are greater, resulting in a bifacial ratio that is typically only 75±5%, significantly lower than that of the Tiger Neo 3.0 . Under the same rear-side irradiation conditions, BC modules achieve relatively limited rear-side power generation gains due to their lower bifacial ratio, thereby weakening their overall power generation advantage. This is also consistent with the results of field tests, which showed that the Tiger Neo 3.0 achieved a cumulative gain per watt of 2.38% compared to N-type BC cells, and a power generation gain per watt of 1.93% during the 11:00–13:00 time slot.
