On-Grid or Grid-Tie solar systems are most common and widely used by residential, commercial or industrial sector. This system connects the system to the electrical grid and allows the Residential, Commercial and Industrial Users to use both – the grid’s electricity and solar energy. The unique feature of this system is that when the Users do not need power or there is excess of it, the solar panels automatically send the excess electricity produced back to the grid, thereby making it useful somewhere else. On the other side, in the event that the solar panels are unable to produce enough power for the users (due to cloudy and stormy days, night time), the users get their electric supply from the grid. This allows users payback and offset of units generated and exported to Grid by solar system on applying Net-Metereing facility from concerned Authorities.