If you’re just starting to think about installing off-grid solar in the Phoenix area, you probably have some questions about how off-grid solar works.
A fully off-grid solar system is designed to generate and store 100% of the electricity needed to power a home. These systems work just like grid-tied solar panel systems: by capturing solar energy and transforming it into electricity. The difference is that off-grid homes are not connected to the electric grid and therefore cannot purchase electricity from it.
Because off-grid systems don’t have the grid to fall back on at night or on a stormy day—when there is no sunlight to produce solar energy—they rely heavily on backup power sources, like solar batteries and backup generators.
How many batteries you need for off-grid solar depends on multiple factors, including the size of your home, the types of appliances you run at night, and the amount of power you use. At SouthFace Solar & Electric, we typically recommend a combination of solar batteries and generators to ensure reliable energy security for Arizona off-grid solar homes. However, every home is different. Our team will create a custom battery design to ensure your off-grid system has sufficient energy storage capacity.