An off-grid solar system is when you do not have any access to the utility grid, or you would like to become independent from the grid.
When looking at going off-grid it is important that the system is sized correctly so that it can generate enough power whilst the sun is shining to serve your needs and charge the batteries and enough battery capacity to meet your home or business needs through the night. It is also essential to have a generator installed in conjunction with the system as a back-up, as the sun might not shine tomorrow due to inclement weather conditions.