We have understood the various types of the solar PV systems in the article, The different types of solar PV systems. The feature of Net Metering is available for Grid- tied solar PV system. In this, the solar power system is connected to the grid supply and it runs on solar energy as long as there is enough energy available from the sun during the day. During night or when there is very less solar energy (due to clouds, haze etc), the system shifts to the grid supply to meet the load requirement. If during the day, when the energy production is more than the load requirement, then this excess or surplus energy can either be stored in the batteries or it can be transferred or sold to the grid. Understanding the concept of Net Metering Net metering is an agreement between the owner of solar PV system and the utility company, in which the owner sells the excess energy to the utility company and buys the deficit the energy from the utility company. The net energy exchange is tracked by the bi-directional meter. If in a day, the energy produced from the solar panels is less than the load requirement, then the deficit energy is imported from the grid supply. The bi-directional meter moves forward and the owner are charged for the deficit amount. Similarly, if in a day the energy produced from the solar panels is more than the load requirement, then the excess energy is exported to the grid, the bi-directional meter moves backwards and the owner is credited and is paid accordingly. Indian states which adopted net-metering The following states of the country have adopted the Net Metering concept:
Benefits of net-metering An individual can generate the solar power for personal consumption and transfer the excess power to the grid. The bidirectional meter records the net of energy, which is transferred to the grid and received from the grid, for the purpose of billing. Net Metering offers the following benefits:
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