Off-grid solar system is mainly used for application with relatively-small power consumption, and the areas have no grid network coverage, or the area has grid coverage but grid power is in unstable or outage condition. This system needs batteries to store the electricity. And all the loads shall fully rely on the batteries for power supply.
Off-Grid Solar Systems An off-grid solar system (off-the-grid, standalone) is the obvious alternative to one that is grid-tied. For homeowners who cant always be access to the grid, off-grid solar systems are usually out of question.