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290Wp
JA Solar Review

NS-290MH-80

Monocrystalline
Datasheet
20.35%
Efficiency
203.5 Wp/m²
Power Density
-0.290%/°C
Temp. Coeff. Pmax chart
-
Power after 30 years
Smart Insights (data-driven)
  • At 20.4% efficiency, this panel is 1.4pp below the database median of 21.8%
  • At 203.5 W/m², this panel generates 14.2 W/m² less per unit area than database median (217.7 W/m²)
  • At -0.29%/°C, hot weather performance is typical for database panels
  • Weight of 15.0 kg (11.5 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • #9817 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)290 Wp
Module Efficiency20.35%
Voltage at Max Power (Vmpp)23.02 V
Current at Max Power (Impp)12.60 A
Open Circuit Voltage (Voc)27.46 V
Short Circuit Current (Isc)13.53 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 Density203.5 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty25 years
End-of-Warranty Output-
First Year Degradation-
Annual Degradation-
Key Specifications
20.35%
Efficiency
290 Wp
Power
-0.29%/°C
Temp Coeff
25 yrs
Warranty
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