On-Grid is also known as Utility-Interactive, Grid-Intertied, or Grid-Direct systems which is most common type of solar PV system. Grid-tied systems are connected to the electrical grid, and allow residents of a building to use solar energy as well as electricity from the grid. Grid-tied systems do not need to produce 100% of the electricty demand for a home or business. When there is no demand for energy, the solar panels send excess electricity back out into the grid for use elsewhere. When a home or business is using energy, but the solar panels aren’t producing enough energy (at night, or on a stormy day), electricity from the grid supplements or replaces electricity from the panels. Owners of a grid-tied system complete a net metering agreement with their utility. This agreement allows utility customers to receive credit for the excess energy they generate, typically credited as a kilowatt-hour credit on the next month’s bill. Net metering policies and agreements are different for each utility. Living with a grid-tied solar PV system is no different than living with utility electricity, except that some or all of the electricity you use comes from the sun. Grid-tied systems do not provide protection from power outages. When the electrical grid fails, grid-tied systems will not continue to operate. This allows utility employees to fix the power lines safely without wasting time identifying solar energy systems that are still feeding electricity into the power lines.

System components:

  • PV panels (multiple panels make up an array)
  • Inverter(s)
  • Electrical safety gear (i.e. fuses, breakers, disconnects)
  • Monitoring system to monitor energy production (optional)


You are mitigating the dependence on fossil fuel based electricity generation and encourage environment friendly Solar electricity generation. In addition to your saving on electricity bills, you can also earn on your investment on Grid connected Rooftop Solar Power Plant with net metering /feed-in-tariff facilities. The excess power generated by Solar Power Plant will be feed to the grid and DISCOMS will pay for excess power feeded to grid. You are lowering carbon dioxide emission and helping combat global climate change.