1. Transmission: State Grid Provincial Branch owns the ownership of transmission lines and substations. Through these transmission devices, electricity is transmitted from power plants to users. State Grid has built a large number of transmission lines and substations in various provinces, forming a huge power grid covering all regions of the country.
2. Distribution: State Grid Provincial Branch owns the ownership of distribution equipment, including distribution transformers, distribution lines and distribution boxes. Distribution is to redistribute the electric energy transmitted by transmission to all users to ensure the stability and reliability of power supply.
3. Power sale right: State Grid Provincial Branch has the power sale right and can provide power supply services to all users. State Grid ensures the balance between power supply and demand by establishing power market and implementing market-oriented power trading.