What is net metering? And why is it so important?
Most solar panel systems are hooked up to the municipal electricity grid, and are therefore called “grid-tied” systems. Net metering ensures that the local utility will purchase any excess electricity that you produce. This excess electricity is commonly referred to as net excess generation, or NEG for short. PV systems create real value in this way by offsetting your monthly electricity bill. One of the first steps to take in deciding whether to get solar is to figure out what your state’s net metering policies are; 42 states participate in net metering to some degree, and the DSIRE website can tell you precisely what policies apply in your area.