Solar Gain Calculation Spreadsheet

Introduction & Importance

Solar gain calculation is crucial for designing efficient buildings and optimizing energy usage…

How to Use This Calculator

1. Enter the area of the surface in square meters.
2. Input the tilt angle in degrees.
3. Provide the azimuth angle in degrees.
4. Enter the latitude in degrees.
5. Click ‘Calculate’.

Formula & Methodology

The solar gain is calculated using the following formula…

Real-World Examples

Data & Statistics

Solar Irradiation Data (kWh/m²/day)

Month	Value

Solar Gain Comparison (kWh/m²/year)

Tilt (°)	Azimuth (°)	Value

Expert Tips

• Consider using reflective materials to maximize gain.
• Optimize window placement for better natural lighting.

Interactive FAQ

What is solar gain?

Solar gain is the heat energy gained by a building due to solar radiation…

For more information, see DOE’s Solar Energy Basics and NREL’s Solar Resource Data.