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655Wp
HY SOLAR Review

HY-NT10/78GDF-655

MonocrystallineBifacial
Datasheet
23.40%
Efficiency
327.8 Wp/m²
Power Density
-0.290%/°C
Temp. Coeff. Pmax chart
572W from 655W
Power after 30 years
Smart Insights (data-driven)
  • Efficiency of 23.4% is 1.0pp above the TOPCon 650-700W median (22.4%)
  • At 327.8 W/m² power density, this panel generates 104.1 W/m² more per unit area than TOPCon 650-700W median (223.7 W/m²)
  • At -0.29%/°C, hot weather performance is typical for TOPCon 650-700W panels
  • Weight of 24.5 kg (10.4 kg below TOPCon 650-700W median of 34.9 kg) allows easier transport and roof mounting
  • #622 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)655 Wp
Module Efficiency23.40%
Voltage at Max Power (Vmpp)47.55 V
Current at Max Power (Impp)13.78 A
Open Circuit Voltage (Voc)57.41 V
Short Circuit Current (Isc)14.33 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 Density327.8 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty30 years
End-of-Warranty Output87.4%
First Year Degradation1.00%
Annual Degradation0.40%/year
Key Specifications
23.40%
Efficiency
655 Wp
Power
-0.29%/°C
Temp Coeff
30 yrs
Warranty
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