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645Wp
Canadian Solar CS7N-645MS
Canadian Solar Review

CS7N-645MS

Monocrystalline
Datasheet
20.80%
Efficiency
207.6 Wp/m²
Power Density
-0.340%/°C
Temp. Coeff. Pmax chart
529W from 645W
Power after 30 years
Smart Insights (data-driven)
  • At 20.8% efficiency, this panel is 0.6pp below the PERC 600-650W median of 21.4%
  • Power density of 207.6 W/m² is 6.2 W/m² below PERC 600-650W median (213.8 W/m²) - needs more roof space
  • Temperature coefficient of -0.34%/°C matches the PERC 600-650W median
  • #8875 for efficiency, #7391 for temperature performance out of 11891 panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series HiKu7 Mono PERC 14 variants
Efficiency Range 20.7% - 21.7%
Avg. Efficiency 21.22%
Technology PERC
Dimensions 2172 × 1303 mm
Show series description

The Canadian Solar HiKu7 Mono PERC series are modules based on dual cell and PERC technology, designed for high power per panel and efficient system scaling. In practice, this translates to fewer modules needed to achieve the target power output, resulting in a simpler design for construction, wiring, and logistics – particularly advantageous for large rooftops and PV farms.

The HiKu7 series distinguishes itself through its commitment to longevity: limitations have been implemented for LID and LeTID degradation, which helps stabilize energy yields over the long term and reduces the risk of performance drops typical for PERC modules. The series also focuses on hot-spot resistance and improved performance under partial shading, offering a real advantage in projects with topological obstructions or uneven exposure.

This is an excellent choice for investors, EPCs, and installation companies seeking to lower the energy cost-of-electricity (LCOE) over time and optimize system costs without compromising on reliability. The modules are also designed for compatibility with popular inverters, simplifying equipment selection in standard projects.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)645 Wp
Module Efficiency20.80%
Voltage at Max Power (Vmpp)37.70 V
Current at Max Power (Impp)17.11 A
Open Circuit Voltage (Voc)44.80 V
Short Circuit Current (Isc)18.35 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.340%/°C
Temp. Coeff. Voc-0.260%/°C
Temp. Coeff. Isc0.050%/°C
NOCT41°C
Cell Technology
Cell TypeMonocrystalline
Cell Count132
BifacialNo
Bifaciality Factor-
Dimensions & Weight
Length2384 mm
Width1303 mm
Height35 mm
Weight33.9 kg
Area3.11 m²
Power Density207.6 Wp/m²
Warranty
Product Warranty12 years
Performance Warranty25 years
End-of-Warranty Output84.8%
First Year Degradation2.00%
Annual Degradation0.55%/year
Key Specifications
20.80%
Efficiency
645 Wp
Power
-0.34%/°C
Temp Coeff
25 yrs
Warranty
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