Off-grid power system consists of solar modules,batteries,inverter and controller.

1).Solar controller regulate and control the power made by solar panel,tansmission power to the load,and the excess energy stored in batteries.When the electricity can not support the load,the power stored in the batteries was send to the loads. In addition, the solar batteries controlled by the controller should not be too filling or too Discharge

2).the task of solar batteries is energy storage in order to ensure the electricity load at night or on cloudy days.

3).Responsibility for solar power inverter is the converter from DC to AC  for AC load using

As solar power  is energy-saving and environment-friendly,once investment in long-term benefit,is widespread used now.

Solar Home System