In a solar powered system, usually following two types metering systems are involved:
● Gross metering
● Net Metering
In gross metering, entire energy generated by the solar PV system is fed back directly
into the utility grid. In this case, the owner gets incentives based on feed-in tariffs
proportional to the energy fed back to the grid.
However, net metering takes into account the difference of excess energy fed back to
the grid and total energy consumed from the grid by the system owner.