The "Grid" Is The Power Available To Us Through Electric
Companies
Renewable Energy can be applied in two different ways, depending on your
energy needs:
Off
Grid
A system not connected to the "grid". These systems are installed in remote
areas where there is no utility-supplied power, like holiday cabins or
acreages. These systems run on a battery bank that stores power from solar
or wind for consumption.
It is often less expensive to install a renewable energy system than having
electricity cables run to the site. Excess energy is stored in batteries for
use during times where there is no sunshine or wind.
Grid-Tie (and Net Metering Agreement)
A system that is connected to the "grid" (utility supplied electricity), is
for the owners who wish to produce free energy with NO battery back up. With no
battery bank there is a substantial cost savings. These systems will not
supply your home with power in the event of a power outage.
In most states any excess energy produced can be sold back to the utility
company. Your local utility provider (listed on your power bill) may install
an electronic bi-flow meter which tracks the energy consumed and/or being
produced by your system. When customers produce more than they consume, they
receive a credit that goes to their account and can be applied against
future consumption charges. At an anniversary date, the customer will be
credited for any excess generation.