A solar power grid-tied system provides electricity to your home, commercial property or factory from photovoltaic (PV) cells in solar panels mounted on your roof.  

Solar panels are made from silicon, or another semiconductor material installed in a metal panel with a glass casing.    When this material is exposed to photos of sunlight it releases electrons and produces an electric DC (direct current) charge.  This charge then flows down from the roof in wires connected to a solar inverter.  

 In the case of an On Grid system this inverter will take this DC charge and invert it into an AC (alternating current) charge.   This AC form of electricity is what we use in our home electrical systems.  This invertered power from the solar panels will go to power your loads that are running in your home.  

On Grid Solar relies on a stable grid power connection.   If there is any problem with the grid power the solar inverter will stop working.   

If power is required in a situation like this then a Hybrid system is recommended.