An On-Grid Systems are solar pv systems that only generate power when the utility power grid is available. They must connect to the grid to function. They can send excess power generated back to the grid when you are over producing so you credit it for later use. These are are simplest systems and the most cost effective to install. These systems will pay for themselves by offsetting utility bills in 3-8 yrs.
One of the benefits of a on-grid solar power is that it helps you in saving money by providing better efficiency rates, net metering, lower equipment and installation costs through the solar panels.
Grid-tied solar systems are cheaper and simpler as they do not require batteries and other stand-alone equipments like off-grid solar. On-grid systems are capable of producing more energy than what a person can consume. Through net metering, the excess electricity is sent back to utility grid and customers account is credited.
Many utility companies are committed to buying electricity from homeowners at the same rate as they sell it themselves. The important thing about on-grid solar systems are that the utility companies buy and sell electricity at the same rate with customers. They are committed to generate fair share to all the stakeholders.
The on-grid systems are self sufficient and in ways acts like a battery that needs no maintenance or replacements andy with better efficiency rates. As electricity can temporarily be stored in the batteries, it is very significant that it has to be spent in real time or else there will be significant losses. So it is obvious that on-grid systems help you to save money and power unlike conventional battery system.
On-grid systems also gives you a backup power from utility grid if your solar system gets non-functional.