← All Calculators
Energy & Solar Calculator
Solar System Size Calculator
Estimate required solar system capacity from daily energy use and peak sun hours.
About the Solar System Size Calculator
Estimate required solar system capacity from daily energy use and peak sun hours. This online tool is designed to make the calculation easier. Enter the required values above and select Calculate Now to view your result.
How to use this calculator
- Enter daily energy use (kwh).
- Enter peak sun hours.
- Enter performance ratio (%).
- Review the values you entered, then select Calculate Now.
- Read the result shown on the page. You can print the result if needed.
Frequently asked questions
Is this solar system size calculator free to use?
Yes. You can use this calculator on CalcGenix without paying a usage fee.
Are the results guaranteed?
Results are estimates based on the values and assumptions entered. Check important financial, tax, engineering or other professional calculations with a qualified professional and the relevant official source.
What information do I need?
Complete the input fields shown in the calculator. The labels identify the values required for this calculation.