Efficiency leader, no clear weak spot
The Tiger Neo III 66QL6-BDV-L series is JinkoSolar's flagship line of bifacial photovoltaic modules, engineered for large-scale ground-mount installations and solar farms, where every extra watt per square meter matters. The panels use third-generation N-type TOPCon cells, built on the HOT 4.0 platform, delivering higher open-circuit voltage and reduced carrier recombination compared to conventional PERC solutions. A defining feature of the series is its high bifaciality reaching 85 percent plus or minus 5 percent, allowing the module to effectively capture light reflected from the ground and boost energy yield without increasing the footprint of the installation. Another key advantage is the low power temperature coefficient, which limits performance losses in hot climates and during long, sun-intensive days - directly translating into lower LCOE for investors. The double-glass construction and advanced surface passivation ensure high resistance to degradation and stable operation throughout the system's lifetime. This solution is dedicated to commercial and utility-scale investors who expect maximum power density, predictable energy yield, and low BoS costs per installed watt.
Ranking
Signals from the data
Commercial and utility-scale.
Top 2% of the N-type 650-700 W segment, against a median of 23.31%. Ranked 13th in the whole database.
Top 2% of the N-type 650-700 W segment, against a median of 233.2. Ranked 15th in the whole database.
Top 17% of the N-type 650-700 W segment, against a median of 51.0.
Module efficiency reaches 24.8%, while comparable 670 Wp panels from Hiwatt Solar, Techwise Solar and Resun Solar achieve only 21.57-21.6%. That's a gap of roughly 3.2 percentage points, translating into about 15% higher power output from the same roof or ground area.
Third-generation N-type cells reduce carrier recombination and increase open-circuit voltage compared to legacy PERC, resulting in a lower LID/LeTID degradation rate and more stable energy yield over the module's lifetime.
A bifaciality factor of 85±5% allows the module to effectively capture ground-reflected light in ground-mount installations, boosting total energy yield without expanding the PV field footprint, especially over high-albedo surfaces such as gravel, white membrane, or snow.
The manufacturer provides a 30-year linear power warranty alongside a 12-year product warranty - longer than the standard 25 years offered by many peer comparables, directly lowering LCOE and investor risk in utility-scale projects.
The power temperature coefficient is -0.26%/°C, limiting output losses in hot climates and during long, sunny operating days for utility-scale installations.
JinkoSolar, founded in 2006, is a Tier-1 bankable manufacturer, easing project financing for commercial and industrial deployments and reducing supplier risk for banks and infrastructure funds.
At 2382x1134x30 mm and 32.5 kg, the module requires stronger mounting structures and more installation manpower compared to smaller-format panels, potentially raising BoS costs during large-scale farm installation.
- 24.8% module efficiency - 1.5pp better than the N-type 650-700W median of 23.3%
- Power density of 248.0 W/m² packs 14.8 W/m² more into the same footprint vs N-type 650-700W median (233.2 W/m²)
- -0.26%/°C temperature coefficient (median: -0.29%/°C) - retains ~1% more power at high temperatures
- At 32.5 kg, weight matches the N-type 650-700W median
- 85% bifaciality enables rear-side power generation, boosting yield by 4-13% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Jinko Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 670 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here
About the Tiger Neo III 66QL6-BDV-L series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.