In this step we choose whether you wish to be connected to the grid (Grid-Tie System), or if you are not connect to the grid (Stand-Alone System). Grid-Tie Systems: in a solar grid-tie system a battery bank is NOT necessary. The panels are connected to an inverter (typically a TRACE SunTie inverter) which connects directly to the electric panel in your house. This system delivers power directly into the grid, effectively turning your electric meter "backward". Net Metering is a process where your total electric bill is determined each month based on two things: how much electricity you consume, and how much you produce. If you produce what you consume, then you have a net-zero electric bill. If you produce half of what you consume, then you have a credit for the power you produced. This is the essence of net-metering. Stand-Alone Systems: in a solar Stand-Alone System you HAVE batteries because some means of storing the solar energy you generate is required. The typical components are: solar PV panels, charge-controller, battery bank, safety disconnect, and inverter. (If you are only running DC loads you don't need the inverter). sitemap