An off-grid system requires battery storage as it is not connected to the electricity grid. Our off-grid solar system are designed appropriately so that it generates enough battery capacity to meet the residential requirements and power to last for a longer time, even when there is less sunlight.
Off-grid systems are slightly expensive than on-grid systems due to the cost of batteries and inverters and so they are mostly used in more remote areas that are far from the electricity network. However battery costs are coming down, as there is a rising market for off-grid solar battery systems even in urban areas.
As soon as the solar power is used by the appliances in your home, any excess power is sent to your battery bank, and once it’s full it will stop receiving power from the solar system. The appliances draw power from the batteries when your solar system isn’t working. When the batteries are low in charge due to cloudy weather, you will need a backup power source, which should be adequate to meet the residential requirements and charge the batteries at the same time.