OFF Grid Solar Power System: The solar PV modules harvest the Sunlight in the DC form and the batteries store the energy in the DC form, But most of the loads around us use AC.Therefore, we use additional system component, PCU(Off grid Inverter)  which converts DC power into AC power. This system is a universal system in which any type of AC or DC load can be operated. All kinds of load like fan, computer, TV, LEDs, tube lights, CFLs etc. can be operated using this type of system configuration.In the standalone PV system, energy is generated by solar PV modules. It is stored in batteries and then supplied to the load when required. Therefore, the flow of energy is from module to battery and then battery to load through PCU (off grid Inverter).