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640Wp
Canadian Solar Review

CS6.2-66HB-640

MonocrystallineBifacial
23.70%
Efficiency
236.9 Wp/m²
Power Density
-0.240%/°C
Temp. Coeff. Pmax chart
578W from 640W
Power after 30 years
  • At 23.7% efficiency, this panel is 1.0pp above typical HJT 600-650W modules (median: 22.7%)
  • Power density of 236.9 W/m² packs 10.8 W/m² more into the same footprint vs HJT 600-650W median (226.1 W/m²)
  • Temperature coefficient of -0.24%/°C matches the HJT 600-650W median
  • 90% bifaciality enables rear-side power generation, boosting yield by 4-14% on reflective surfaces
  • #360 for efficiency, #13 for temperature performance out of 11672 panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series HiHero+ Bifacial HJT 6 variants
Efficiency Range 23.0% - 23.9%
Avg. Efficiency 23.42%
Technology HJT
Dimensions 2382 × 1134 mm
Show series description

The HiHero+ Bifacial HJT series is a breakthrough solution based on heterojunction technology (HJT), which sets new efficiency standards in the Polish photovoltaics sector. By combining the advantages of crystalline silicon and thin-film technology, these panels eliminate typical energy losses, offering the highest operational stability in all weather conditions. The use of N-type cells makes the modules almost completely resistant to light-induced degradation phenomena, which guarantees above-average long-term durability and real profits after many years of operation. The bifacial design allows for additional energy generation from reflected radiation, which, combined with an exceptionally low temperature coefficient, ensures that the installation maintains high efficiency even on hot summer days. It is an ideal choice for investors requiring maximum yield from limited roof space and for modern ground-mounted farms focusing on innovation. They are distinguished from the competition by unique cell symmetry that minimizes the risk of micro-cracks and maximization of yields in low light, making them exceptionally effective at our latitude. By choosing this solution, the investor receives a premium-class product that effectively solves the problem of power drop at high temperatures, ensuring the highest level of energy security.

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 Efficiency23.70%
Voltage at Max Power (Vmpp)42.70 V
Current at Max Power (Impp)14.99 A
Open Circuit Voltage (Voc)50.40 V
Short Circuit Current (Isc)16.01 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.240%/°C
Temp. Coeff. Voc-0.230%/°C
Temp. Coeff. Isc0.050%/°C
NOCT41°C
Cell Technology
Cell TypeMonocrystalline
Cell Count132
BifacialYes
Bifaciality Factor90%
Dimensions & Weight
Length2382 mm
Width1134 mm
Height30 mm
Weight32.8 kg
Area2.70 m²
Power Density236.9 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty30 years
End-of-Warranty Output90.3%
First Year Degradation1.00%
Annual Degradation0.30%/year
Key Specifications
23.70%
Efficiency
640 Wp
Power
-0.24%/°C
Temp Coeff
30 yrs
Warranty