Net metering is the mechanism that transforms your solar array from a simple power generator into an active financial asset. Think of it as a "virtual battery" provided by your utility company, allowing you to bank the energy you don't use immediately for later use.
At its core, net metering is a billing arrangement between you and your utility provider. It ensures that for every kilowatt-hour (kWh) your solar panels produce that you don't consume, you receive a credit on your utility account.
Because solar production is highest during the day—often when your home’s energy demand is lowest— you will frequently produce more electricity than you need. Net metering captures that surplus and allows you to "withdraw" it from the grid at night or on cloudy days when your panels are not producing.
The system relies on a bi-directional meter installed by your utility company.
If you produced more than you used, those credits are typically carried over to your next bill, effectively zeroing out or significantly reducing your cost of power.
When reviewing your solar quotes, ask the installer specifically: "What is the current net metering policy for my specific utility provider, and does the proposal use a 1:1 credit calculation or a different structure?"