Grid tied solar plant use system architecture to synchronize the solar plant output with the Grid supply. This system is synchronized with the utility supply mains at the distribution box. It utilizes an inverter which has smart electronics features which help in synchronizing with the grid supply and reduce the total power consumption from the grid.
What is Net Metering?
Net metering is a billing mechanism that credits solar energy system owners for the electricity they add to the grid. For example, if a customer has a PV system on the premise, it may generate more electricity than the home uses during daylight hours. If the home is net-metered, the electricity meter will run backward to provide a credit against what electricity is consumed at night or other periods where the home's electricity use exceeds the system's output. Customers are only billed for their "net" energy use. On average, only 10-20% of a solar energy system’s output ever goes into the grid. Net metering enhances the energy utilisation of the solar plant by reusing the excess generation in the day time in the night time.