The household distributed photovoltaic power generation system consists of a photovoltaic array (composed of photovoltaic modules in series and parallel), a photovoltaic inverter, a photovoltaic bracket, a photovoltaic grid box, a controller (optional), a battery pack (optional), and AC/DC cables.

The core component of a photovoltaic power generation system is a photovoltaic module, which is composed of photovoltaic cells in series, parallel, and packaged. It directly converts the solar energy into electrical energy.

The electricity generated by photovoltaic modules is direct current, which can be converted into alternating current by inverters for use, or all of it can be transmitted to the public power grid. From another perspective, the electricity generated by photovoltaic power generation systems can be generated and used immediately, or stored by energy storage devices such as batteries, which can be released and used as needed at any time.

Photovoltaic power generation refers to the use of solar photovoltaic cells to directly convert solar radiation into electrical energy. Photovoltaic power generation is the mainstream of solar power generation today.

Distributed photovoltaic systems refer to photovoltaic power generation facilities that are built near user sites and generally connected to power grids with voltage levels below 35kV. The generated electricity is mainly consumed locally and is characterized by balanced regulation in the distribution system. There are two modes of operation for distributed photovoltaic systems: self use, surplus power grid connection, and full grid connection. Spontaneous self use and surplus electricity grid connection refers to the priority use of electricity generated by distributed photovoltaic power generation systems by power users, with excess electricity connected to the grid; Full grid connection refers to the complete connection of the electricity generated by the distributed photovoltaic power generation system to the power grid.

Distributed generation follows the principle of adjusting measures to local conditions, being clean and efficient, decentralized and using nearby, making full use of local solar energy resources to replace and reduce fossil energy consumption.