Solar PV with batteries is a grid tied system with battery back-up, so if the grid goes down you will still have power. The solar PV system with batteries is only recommended if your power goes out often, because the batteries drive the cost up on your PV system. In the right location it is a penny well spent.
Pricing for battery back-up
11kWh cost : $10,000 for the Battery storage
Price to compare Solar PV with batteries $7.20 watt
How much power does my house use?
Flat Screen TV= .1 kW/hr, Lights Per Room= .1 kW/hr, Labtop= .05 kW/hr, Refrigerator=1.6 kW/day, Clothes Washer=2.3 kWh each use, Clothes Dryer=3.3kWh each use
Pricing for battery back-up
11kWh cost : $10,000 for the Battery storage
Price to compare Solar PV with batteries $7.20 watt
How much power does my house use?
Flat Screen TV= .1 kW/hr, Lights Per Room= .1 kW/hr, Labtop= .05 kW/hr, Refrigerator=1.6 kW/day, Clothes Washer=2.3 kWh each use, Clothes Dryer=3.3kWh each use