Solar PV system includes different components that should be selected according to your system type, site location and applications. The major components for solar system are solar charge controller, inverter, battery bank and PV modules that convert sunlight into DC electricity.

1. This app is a tool to calculate and size all the off grid solar system .
It will calculate total Watt-hours per day for each appliance used.
2. It will calculate total Watt-hours per day needed from the PV  
modules.
3. Size the PV modules that suitable for your application 
3. Sizing  
the Inverter that convert DC into AC power.
4. Sizing the battery bank that will store your power .
5. Sizing the solar charger controller that will regulate the voltage  
and current to charge the battery bank.

This is app will generate a detail report with all required design perimeters for your Solar system that suitable for your application .