In Hybrid system the power produced from the solar panel is used to charge the battery for future usage during power failure. The inverter used in these systems will have a inbuilt charge controller that will monitor and charge the battery. This charge controller will maintain the battery voltage and will extend the life of the battery.
The excess DC power that is available after charging the battery will be converted to AC and will be fed to appliance. Also during the absence of any appliance that consumes power this AC power will be fed to the utility grid through a bidirectional meter. This process will accumulate credit and can be adjusted with the monthly power consumption.
During utility grid failure the DC power stored in the battery is converted to AC power and is fed to a selection of appliances that are connected to the Inverter. The battery bank connected to the inverter can also be charged through utility grid. The charging priority can be selected as solar or grid. This ensures that the battery remains fully charged even during the absence of solar power.