Calculate Solar Power per Square Meter
Introduction & Importance
Solar irradiance, measured in kilowatt-hours per square meter (kWh/m²), is a crucial factor in designing solar energy systems. It represents the amount of solar energy received per unit area and time.
How to Use This Calculator
- Enter your location’s latitude, longitude, and altitude.
- Select the month for which you want to calculate solar irradiance.
- Click “Calculate” to see the results.
Formula & Methodology
The solar irradiance (G) can be calculated using the following formula:
G = G0 * (a0 + a1 * sin(γ) + a2 * sin(2γ))
Where:
- G0 is the solar constant (1367 W/m²)
- γ is the solar zenith angle
- a0, a1, and a2 are empirical coefficients
Real-World Examples
Data & Statistics
| Region | Average Irradiance (kWh/m²) |
|---|---|
| Tropical | 5-7 |
| Temperate | 3.5-5 |
| Arctic | 1-3 |
| Month | Average Irradiance (kWh/m²) |
|---|---|
| January | 6.2 |
| February | 7.1 |
| March | 7.7 |
Expert Tips
- Consider using solar panels with higher efficiency to maximize energy output in low irradiance areas.
- Track the sun’s movement throughout the day to optimize solar panel placement and orientation.
Interactive FAQ
What is solar irradiance?
Solar irradiance is the amount of solar energy received per unit area and time.