Abstract：To adapt to the construction of a novel power system with new energy as the main body，it is

necessary to continuously improve the new energy consumption capacity of various voltage-level power grids.

Through the research on the influencing factors and improvement methods of new energy consumption capacity of

distribution network，a new energy capacity evaluation method of a regional distribution network based on multifactor limitation was proposed，which analyzed the consumption capacity from the high-voltage power grid，

medium-voltage feeder and low-voltage platform area，respectively. In addition，an optimal method of improving

the investment efficiency based on unit new energy was also proposed. Through analysis，it is found that mediumvoltage lines are mainly affected by voltage crossing and thermal stability constraints. In contrast，high-voltage power grids are mainly affected by main transformer capacity and higher-level transmission lines. Finally，a

practical calculation tool was formed through the constraints and calculation models of new energy consumption.

Combined with the countermeasures and methods of different factors，the study has important reference significance for China's novel power construction.

      Key words：new energy；consumption capacity；enhancement scheme；novel power system