How to Use the Solar Irradiance Calculator
Enter the latitude of your site and pick a season, and this tool estimates how much solar energy reaches one square meter of surface per day, in kWh. It's a quick reference for gauging rough solar panel output potential before diving into a full installation quote.
Solar irradiance tends to be higher closer to the equator and during summer months, when the sun sits higher in the sky. Locations farther from the equator, or during winter when the sun's angle is lower, receive less total energy per square meter even on a clear day.
Keep in mind this is a simplified clear-sky estimate. Actual irradiance depends heavily on cloud cover, humidity, air pollution, and shading from nearby buildings or trees. For an accurate production forecast, pair this estimate with local weather station data or a professional solar simulation tool.
Frequently Asked Questions
Solar irradiance is the total amount of solar energy that reaches one square meter over a day, measured in kWh/m². It's a baseline figure used to estimate solar panel output.
This is a simplified clear-sky estimate. Actual irradiance varies with cloud cover, air quality, and terrain, so for precise planning use local weather data or a professional solar production simulation.