Abstract: By calculating the carrying capacity of regional distributed photovoltaics, the consumption of distributed photovoltaics can be effectively estimated. When large-scale photovoltaic power is connected to the corresponding voltage level according to the connection principle, large-scale load reverse transmission will not occur in the superior power grid, ensuring the reliability of power supply, improving the quality of power supply, and ensuring the stability of electricity consumption for people on the plateau under the premise of safety.