Systems that use off-grid inverters have a constant output power. In these systems, in addition to the inverter, batteries is used for backup, which first uses the electricity stored in the batteries. That is, if it is sometimes sunny and sometimes cloudy during the day, the electricity generated is regular with a constant voltage. This type of inverter is generally used in small solar systems to finance the electricity of houses, offices, schools, clinics and other areas that are deprived of the city’s electricity network.
