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M

MS640N-HJTGB

640 Wp Monocrystalline Bifacial
Datasheet
Efficiency
22.61%
Power Density
226.1 Wp/m²
Temp. Coeff. Pmax
-0.260%/°C
After 30 years
587W
  • At 22.6% efficiency, this panel is on par with typical HJT 600-650W modules
  • Power density of 226.1 W/m² matches the HJT 600-650W median
  • At -0.26%/°C, loses 0.02pp more power per degree than HJT 600-650W median (-0.24%/°C)
  • At 35.2 kg (1.7 kg above HJT 600-650W median of 33.5 kg), requires checking roof load capacity
  • Bifaciality factor of 85% can add 4-13% extra yield with reflective mounting surface
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series GOLD N-Type HJT BIFACIAL 10 variants
Efficiency Range 21.9% - 23.2%
Avg. Efficiency 22.56%
Technology HJT
Dimensions 2172 × 1303 mm
Show series description

The MY Solar GOLD N-Type HJT BIFACIAL series is a breakthrough solution combining heterojunction technology with N-type cells, which translates into unrivaled efficiency in real weather conditions. Thanks to the use of advanced HJT technology, these modules are characterized by minimal degradation and exceptional thermal stability, allowing for the generation of maximum energy even on hot summer days. A key advantage of this series is full bifaciality, which enables effective absorption of light reflected from the ground, significantly increasing the total yield from the installation compared to commonly used monofacial panels. This design effectively eliminates problems related to LID and LeTID effects, guaranteeing investors long-term security and a much faster return on investment. These panels are dedicated to the most demanding commercial projects and modern energy-efficient homes, where the priority is the highest yield from a limited mounting area. This solution stands out from the competition with its extremely high bifaciality factor and excellent sensitivity in low sunlight, which makes the system work efficiently from early dawn until late dusk. Choosing this series is a direct investment in the highest energy efficiency, which sets new standards for durability and reliability in the Polish renewable energy sector.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)640 Wp
Module Efficiency22.61%
Voltage at Max Power (Vmpp)38.35 V
Current at Max Power (Impp)16.69 A
Open Circuit Voltage (Voc)45.66 V
Short Circuit Current (Isc)17.50 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.260%/°C
Temp. Coeff. Voc-0.240%/°C
Temp. Coeff. Isc0.040%/°C
NOCT42°C
Cell Technology
Cell TypeMonocrystalline
Cell Count120
BifacialYes
Bifaciality Factor85%
Dimensions & Weight
Length2172 mm
Width1303 mm
Height35 mm
Weight35.2 kg
Area2.83 m²
Power Density226.1 Wp/m²
Warranty
Product Warranty30 years
Performance Warranty30 years
End-of-Warranty Output91.8%
First Year Degradation1.00%
Annual Degradation0.25%/year
Key Specifications
22.61%
Efficiency
640 Wp
Power
-0.26%/°C
Temp Coeff
30 yrs
Warranty
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