🔆 Solar Irradiance Calculator
Location:
Date:
Calculate
☀️ Solar Irradiance Information
GHI
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DNI
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DHI
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Air Mass
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Elevation
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Daily Energy
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GTI
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Optimal Tilt
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Sun Position
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Incidence Angle
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GTI Daily
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Efficiency
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Solar Irradiance Analysis
Daily
Monthly
🛰️
Daily Irradiance Curve
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Hourly irradiance (clear sky) • GTI overlay
DQYDJ
Calculating monthly averages...
Model & Panel Settings
Show Advanced
Model Conditions
Use typical conditions (vs clear sky)
Applies ~25% reduction for clouds and atmospheric conditions
Site Elevation
m
meters (m)
feet (ft)
Higher elevation = more solar radiation
Panel Configuration
Tilt Angle
°
Optimal:
30°
Ground Albedo
ratio
0.2 = grass, 0.8 = snow
Azimuth
° from N
180° = South (optimal)
Shading Loss
%
Trees, buildings, etc.