Nominal Power (Pmax)	520 Wp
Module Efficiency	19.30%
Voltage at Max Power (Vmpp)	42.30 V
Current at Max Power (Impp)	12.31 A
Open Circuit Voltage (Voc)	49.50 V
Short Circuit Current (Isc)	13.56 A
Max System Voltage	1500 V

Temperature Coefficients

Temp. Coeff. Pmax	-0.340%/°C
Temp. Coeff. Voc	-0.260%/°C
Temp. Coeff. Isc	0.033%/°C
NOCT	41°C

Cell Technology

Cell Type	Monocrystalline
Cell Count	144
Bifacial	No
Bifaciality Factor	-

Dimensions & Weight

Length	2246 mm
Width	1197 mm
Height	2 mm
Weight	7.7 kg
Area	2.69 m²
Power Density	193.4 Wp/m²

Warranty

Product Warranty	12 years
Performance Warranty	25 years
End-of-Warranty Output	84.8%
First Year Degradation	2.00%
Annual Degradation	0.55%/year

Key Specifications

19.30%

Efficiency

520 Wp

Power

-0.34%/°C

Temp Coeff

25 yrs

Warranty

30-Year Degradation & Energy Production Simulation

Quick Presets

Irradiance (kWh/kWp/year) US avg: 1200-1800

Energy Price ($/kWh) Inflation: 0%

Energy Price Inflation (%/year)

Power after 30 years

Total Energy (30 yrs)

Energy Value

Efficiency & Power Over Time

Annual Energy Production

About the simulation: Calculations based on declared annual degradation (-%/year). Default irradiance (1200 kWh/kWp/year) is an average - check your exact value using PVGIS. Actual production depends on location, orientation, shading, and installation quality.

Power vs Cell Temperature Simulation (-0.340%/°C)

At 75°C (hot roof in summer):

Power: -

Power Loss: -

At Different Temperatures:

25°C (STC)	-
45°C	-
55°C	-
65°C	-
75°C	-

Your Temperature:

°C

Cell temperature of 75°C is typical for rooftop panels on a hot summer day at full irradiance. Temperature coefficient -0.340%/°C means power drops by this percentage for each degree above 25°C.

Bifacial Profit Calculator 70%

Select Surface Below Panel

What is albedo? Albedo is the fraction of sunlight reflected by a surface. Higher albedo (lighter surfaces) means more light reaches the back of bifacial panels, increasing total energy production.

Estimated Rear Gain

Front Power: -

Rear Gain: -

Total Effective Power: -

Calculation: Bifaciality (-) × Albedo × 0.6 (view factor)

This calculator uses a simplified model with default albedo values and a ground coverage factor of 0.6. Actual gain depends on installation conditions, tilt angle, mounting height, and season. For accurate calculations, we recommend measuring albedo on-site.

Sources: Sandia PVPMC (Albedo) · Bifacial Solar Guide · IEA PVPS

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Electrical Parameters (STC)

Temperature Coefficients

Cell Technology

Dimensions & Weight

Warranty

Key Specifications

30-Year Degradation & Energy Production Simulation

Efficiency & Power Over Time

Annual Energy Production

Power vs Cell Temperature Simulation (-0.340%/°C)

At 75°C (hot roof in summer):

At Different Temperatures:

Your Temperature:

Bifacial Profit Calculator 70%

Select Surface Below Panel

Estimated Rear Gain

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