On Grid System is a Solar Power Generation System, where the solar photovoltaic system is connected to the utility grid. The electricity produced by the system is routed to this grid or the electrical service provider from where it is used to run the various appliances. The installation of an On-Grid system is fuss- free and easy to maintain.
The main components are:
- Solar PV Modules,
- Solar Inverter,
- Mounting Structure,
- Monitoring Device,
Net metering allows residential and commercial customers who generate their own electricity from solar power to feed electricity they do not use back into 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 residential customer has a PV system on the home’s rooftop, it may generate more electricity than the home uses during daylight hours. If the home is net-metered, the electricity meter will run backwards 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 20-40% of a solar energy system’s output ever goes into the grid. Exported solar electricity serves nearby customers’ loads.
How Does It Works?
- Under Net Metering policy electric customers generate their own electricity from a solar photovoltaic (PV) system installed on the roof top of the building. The output of the panels (DC electricity) is connected to the power conditioning unit / inverter which converts DC Power to AC Power.
- The inverter output is connected to the control panel / distribution board of the building to utilize the power.
- The inverter synchronizes with the grid to power the loads with preference of consuming solar power first.
- The power generated in excess of the owner’s electricity consumption is fed into the grid through a bi-directional energy meter capable of registering both import and export of electricity.
- The arrangement of a net metering system utilizes the same service line for excess power injection into the grid which is already being used by the consumer for drawl of power from utility network.
- Net-Metering allows households to generate electricity and set off the power produced against the power used from the grid and consumer pays only for the “net” number of units (difference between import and export energy) used each month.
- In the event the consumer produces power in excess of his usage in a particular month, the customer’s energy charge becomes zero and the remaining units are credited and carried forward to the following month.