Solar Irradiance Calculator
This solar irradiance calculator shows you how much power you get from the sun at your location on an average day for every month of the year.
Solar irradiance is a measure of the suns power. Irradiance levels vary considerably at different times of the year, depending on the seasons, the weather and the time of day.
Our Irradiance calculator provides monthly figures showing the average kWh per square metre per day of energy that the sun provides.
How to use the Solar Irradiance Calculator
How you can use the solar irradiance calculator information
The information from the solar irradiance calculator can be used to calculate the amount of power you can get from different forms of solar energy systems:
Irradiance Calculator Example: if you have an 80 watt solar power, and your monthly insolation figure is 4.0, you multiply 80 watts by 75% to give you 60 watts and then multiply this by 4.0 to equate to 240 W/h/day of solar energy.
Irradiance Calculator Example: If you have a two cubic metre solar water heater that is 75% efficient and your monthly insolation figure is 4.0, your solar hot water system is producing 6kW/h/day of hot water. If you are heating up 200 litres of water, you can increase the temperature of the water by 25.8°C above the ambient water temperature.
This calculator has been provide by The Solar Electricity Handbook. The website also includes other tools, including a free angle calculator and project analysis. If you are planning a project these are great tools and will assist you with the full planning process.
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|Solar Electricity Handbook|
A simple, practical guide to using electric solar panels and designing and installing photovoltaic PV systems.
The Solar Electricity Handbook assumes no previous knowledge of solar power systems, it explains how panels work, how they can be used and explains the steps you need to take to successfully design and install a electric photovoltaic system from scratch.