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620Wp
HY SOLAR Review

HY-NT11/66GDF-620

MonocrystallineBifacial
Datasheet
23.00%
Efficiency
310.3 Wp/m²
Power Density
-0.290%/°C
Temp. Coeff. Pmax chart
542W from 620W
Power after 30 years
Smart Insights (data-driven)
  • At 23.0% efficiency, this panel is on par with typical TOPCon 600-650W modules
  • Power density of 310.3 W/m² packs 82.6 W/m² more into the same footprint vs TOPCon 600-650W median (227.7 W/m²)
  • Temperature coefficient of -0.29%/°C matches the TOPCon 600-650W median
  • At 24.5 kg, this panel is 8.1 kg lighter than TOPCon 600-650W median (32.6 kg) - easier handling during installation
  • #1457 for efficiency, #1739 for temperature performance out of 11672 panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series HY SOLAR N-Type TOPCon (multiple series/frames) 86 variants
Efficiency Range 22.3% - 23.8%
Avg. Efficiency 22.95%
Technology TOPCon
Dimensions 1762 × 1134 mm
Show series description

The HY SOLAR N-Type TOPCon series (available in various configurations and frame options) is designed for real-world operating conditions, where stable performance, predictability, and energy loss resistance are paramount. A key advantage is the use of N-Type TOPCon cell technology, which supports high efficiency over the long term and helps to minimize performance degradation typical of older solutions. Many variants feature a bifacial design, allowing the module to also utilize reflected light from the ground, which improves energy production in PV farms, ground-mounted systems, and PV+ projects.

The use of SMBB and half-cut cell technology also enhances current flow within the module and improves performance under partial shading. The manufacturer also highlights improved performance in low-light conditions and the beneficial impact of a lower temperature coefficient on energy yield in hot weather. This series is ideal for investors who want to combine high power density with practical reliability in commercial and industrial projects.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)620 Wp
Module Efficiency23.00%
Voltage at Max Power (Vmpp)40.90 V
Current at Max Power (Impp)15.16 A
Open Circuit Voltage (Voc)48.90 V
Short Circuit Current (Isc)15.96 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.290%/°C
Temp. Coeff. Voc-0.240%/°C
Temp. Coeff. Isc0.043%/°C
NOCT42°C
Cell Technology
Cell TypeMonocrystalline
Cell Count108
BifacialYes
Bifaciality Factor-
Dimensions & Weight
Length1762 mm
Width1134 mm
Height30 mm
Weight24.5 kg
Area2.00 m²
Power Density310.3 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty30 years
End-of-Warranty Output87.4%
First Year Degradation1.00%
Annual Degradation0.40%/year
Key Specifications
23.00%
Efficiency
620 Wp
Power
-0.29%/°C
Temp Coeff
30 yrs
Warranty
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