What Net Metering Does
Net metering is a billing arrangement that can account for electricity your on-grid solar system exports to the utility grid, offsetting some of the electricity you import.
A bi-directional meter records both the units you draw from the grid and the units you send back, and your bill reflects the net difference.
Regulations Vary
Net-metering rules, sanctioned load limits and export caps are set by each state and DISCOM, and can change over time.
It's worth confirming current net-metering policy for your specific location and connection type before finalising system size.