Under the national background of “carbon peak and carbon neutral”, low carbon green building is a key initiative to realize “carbon neutral”. Compared with centralized PV power plants, rooftop distributed PV power supply is led by the user side, which can effectively reduce the dependence on centralized grid power supply and enhance the flexibility of the power system. According to the industry and brokerage estimates, with the scale of China's real estate, building area measurement, China's roof distributed photovoltaic combined total space or more than 600GW, is the current photovoltaic installed capacity of 2.36 times, photovoltaic building market size will reach trillions of dollars. China's photovoltaic industry after more than ten years of development, already has a mature industrial chain, with the current decline in the price of photovoltaic products, which gives the photovoltaic roof of the dual attributes of energy and building materials, along with the landing of the national policy, the industry will usher in a new period of rapid development.

Due to the instability of photovoltaic power generation, grid scheduling difficulties, and therefore into the power grid is subject to certain restrictions, although the installed capacity scale year after year, but also produce the corresponding problem of abandoned power loss. Through the development of corresponding energy storage and microgrid, or let the distributed photovoltaic industry healthy development of a way.