Solar Calculator
Estimate solar system size and panel count from electricity usage.
Your resultEnter values to calculate
About this solar calculator
Estimate a starting solar-system size from monthly electricity consumption, peak-sun-hours, panel wattage and system efficiency.
How to use it
Enter the requested values, check the units or period you selected, and choose Calculate. You can change the inputs and calculate again.
How KHOJO calculates the result
Daily energy demand is estimated from monthly kWh and divided by usable solar production. Roof orientation, shading, inverter limits, battery requirements and local weather need a site assessment.
Important: Results are estimates. For financial, tax, admission, construction or energy decisions, verify the inputs and applicable official rules before acting.