Pictured above are the two electrical panels that will be located in my shop and a power transfer gateway located on the left. The gateway serves several functions. It will (1) automatically connect battery power to the house in the event of a power failure, (2) allow us to charge the batteries during off-peak hours and run the house from the batteries during peak hours, (3) charge the batteries from future solar panels, and (4) return excess solar capacity to the grid.