In recent years, the cost of PV energy storage system has been gradually reduced, and the technology has been optimized, so PV & storage has been rapidly developed and highly valued under such a general environment. Since 2018, various regions and countries around the world have launched “zero carbon plans”, PV & energy storage has increasing shown explosive development. The development process of PV+ energy has also shown a trend of diversification in its application, In addition of self-gener