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300Wp
JA Solar Review

NS-300MH-80

Monocrystalline
Datasheet
21.05%
Efficiency
210.5 Wp/m²
Power Density
-0.290%/°C
Temp. Coeff. Pmax chart
-
Power after 30 years
Smart Insights (data-driven)
  • Module efficiency of 21.1% is 0.8pp below average for database panels (median: 21.8%)
  • Power density of 210.5 W/m² is 7.2 W/m² below database median (217.7 W/m²) - needs more roof space
  • Temperature coefficient of -0.29%/°C matches the database median
  • At 15.0 kg, this panel is 11.5 kg lighter than database median (26.5 kg) - easier handling during installation
  • #8008 for efficiency, #1739 for temperature performance out of 11672 panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series Monocrystalline80 8 variants
Efficiency Range 20.1% - 23.1%
Avg. Efficiency 21.49%
Technology -
Dimensions 1295 × 770 mm
Show series description

The JA Solar Monocrystalline 80 series is designed to maximize energy production from a single module, where every square meter of roof or structure counts. The use of monocrystalline cells in an 80-cell configuration helps to better utilize the active surface area, while a refined connection architecture minimizes internal resistance losses. In practice, this translates to higher daily production and more stable operation in installations exposed to variable weather conditions. These modules are designed for robust mechanical durability, which is important on roofs in snowy and windy areas, and the quality of lamination and protection ensures long-term operation without frequent maintenance. Monocrystalline 80 is suitable for both residential and commercial installations, especially where the investor expects low losses under partial shading and predictable performance. Compared to many competing solutions, it stands out for its suitability for dense roof configurations and its emphasis on the real-world efficiency of the module, rather than just its specifications.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)300 Wp
Module Efficiency21.05%
Voltage at Max Power (Vmpp)23.22 V
Current at Max Power (Impp)12.92 A
Open Circuit Voltage (Voc)27.66 V
Short Circuit Current (Isc)13.91 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.290%/°C
Temp. Coeff. Voc-0.250%/°C
Temp. Coeff. Isc0.045%/°C
NOCT45°C
Cell Technology
Cell TypeMonocrystalline
Cell Count80
BifacialNo
Bifaciality Factor-
Dimensions & Weight
Length1900 mm
Width750 mm
Height30 mm
Weight15.0 kg
Area1.43 m²
Power Density210.5 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty25 years
End-of-Warranty Output-
First Year Degradation-
Annual Degradation-
Key Specifications
21.05%
Efficiency
300 Wp
Power
-0.29%/°C
Temp Coeff
25 yrs
Warranty
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