CGC Sanya, Hainan Field Test: Tiger Neo 3.0 Demonstrates Up to 5.34% Yield Gain at Dawn
The power generation comparison test ran from May 1 to July 31, 2026. Measured data shows that the Tiger Neo 3.0 accumulated 440.40 kWh/kW over the test period, compared with 430.15 kWh/kW for N-type BC modules of the same power rating, for a stable gain of 2.38% per watt. The result fully demonstrates the module’s comprehensive power generation advantages in the high-temperature, high-humidity grassland ground-mounted power plant scenarios typical of southern China.
Located in the tropics, Hainan features long hours of sunshine, intense solar radiation, and year-round high temperatures and humidity, making it a representative region for evaluating the comprehensive power generation performance and bifaciality of solar modules. With the rapid growth of ground-mounted power plants in southern China and Southeast Asia, grassy terrain has become a common installation scenario in tropical and subtropical regions. The project therefore selected fixed mounting structures on grassy terrain as its demonstration site, ensuring the test results closely reflect the actual operating conditions of local power plant projects.
To ensure the objectivity and validity of the comparison, the project adopted a string-level parallel comparison approach with strict variable control. Nine Tiger Neo 3.0 modules (650 W) and nine N-type BC modules of the same rating (650 W) were selected, each test group carrying a capacity of 5.85 kW. Both sets were installed on fixed mounting brackets at a 10° tilt angle, approximately one meter above the ground, oriented in the same direction with no surrounding obstructions. Two PV strings were each connected to a string inverter of the same model, using independent MPPT channels to collect generation data simultaneously across the nearly three-month monitoring cycle. Key metrics included cumulative per-watt generation (kWh/kW), time-segmented per-watt generation, relative generation gain (%), and irradiance (W/m²).
The high-bifaciality advantage of the Tiger Neo 3.0 is verified across two dimensions. During the peak-irradiance window from 11:00 a.m. to 1:00 p.m., the module achieved a per-watt gain of 1.93%, more efficiently converting scattered and reflected light from the grassy ground into additional generation at midday when rear-side reflection is at its peak. Across the entire test cycle, the Tiger Neo 3.0 maintained a consistently positive gain, with a cumulative gain of 2.38% per watt and no degradation under the harsh high-temperature, high-humidity environment.
The advantage stems primarily from structural design and process innovation. N-type TOPCon inherently features high bifaciality, and JinkoSolar’s Tiger Neo 3.0 incorporates MAX-patterned enhancement technology, which through the selective layout of the rear poly layer significantly reduces rear-side irradiation losses, achieving a bifaciality of up to 85% ± 5%. In contrast, N-type BC cells place both front and back grid lines on the rear side, where shading losses from the rear grid lines and the patterning process are greater, resulting in a bifacial ratio typically only 75% ± 5%. This is consistent with the field test results showing a 2.38% cumulative per-watt gain for the Tiger Neo 3.0 and a 1.93% gain during the 11:00–13:00 time slot.