A system in which solar panels or other renewable energy generators are connected to a public-utility power grid and surplus power is transferred onto the grid, allowing customers to offset the cost of power drawn from the utility.
In a grid-tied PV system, electricity can flow through your meter in either direction, depending on the amount of electricity your system is producing and how much electricity you are using. At times, your PV system may produce more electricity than you need, and you will “bank” or be credited with power for later use. At other times, you may need to draw supplemental power from the utility grid, drawing on previous credits. Net metering keeps track of the net difference between the grid-supplied electricity you use and the surplus generated by your PV system. When you generate more power than you use, you’ll actually see your electric meter spin backward! Visit the Financial Center for more information.