How to use this tool
Check the units, enter your values, and run the tool. Results follow the assumptions and method below.
Calculation method
Required rated panel capacity
energy/(sun*efficiency/100)Solar Panel Wattage Calculator
Average energy balance using user-entered peak sun hours and performance ratio. Excludes weather retrieval, battery and inverter sizing.
Average energy balance using user-entered peak sun hours and performance ratio. Excludes weather retrieval, battery and inverter sizing.
Result
Enter your values and run the tool to see your result.