For some time now in New Hampshire, consumers and businesses who install and use solar panels have been able to earn refunds for the power they generate and return to the electric grid. This is known as “net metering.”
A state law passed last year makes it possible for some consumers to participate in net metering and earn refunds without having their own solar arrays.
It's known as "group net metering," and to explain how this works, we turn again to David Brooks, who writes the weekly GraniteGeek science column for the Nashua Telegraph and GraniteGeek.org.
