The development of new energy generation and energy storage has changed topology of traditional power grid. On the other hand
the development of intelligent technology in buildings has transformed building from single type energy consumers to hybrid energy producers. As a result
the role and function of smart buildings in power grid of carbon neutral has changed dramatically. The definition
composition and connotation of smart buildings under the development of new technologies need to be further clarified and summarized. Firstly
the principle of smart buildings participating in power grids of carbon neutral is discussed. Then
based on the difference in the amount of power generation in buildings
the parallel mode of smart building and power grid is discussed. Lastly
development of future development of power grids and buildings are prospected.