New Power System Distribution Network Grid Planning and Application

This document, authored by Ni Shiyuan of the State Grid Fujian Economic Research Institute in June 2025, provides a comprehensive overview of the development, planning, and application of distribution networks within the new power system. It outlines five major transformations in power systems, including shifts toward clean energy, flexible grids, and interactive supply-demand dynamics. The document identifies key challenges such as inadequate network structure, low intelligence levels, and insufficient coordinated operation capabilities. It describes the three forms—physical, digital, and commercial—and four high characteristics of the new distribution network: high supply reliability, high source-load aggregation, high information integration, and high-quality service. The evolution path is divided into three stages: accelerated transformation, overall formation, and consolidation and improvement. New elements like distributed generation, energy storage, diversified loads, and microgrids are discussed, along with key technologies such as source-load interaction and microgrid control systems. The document serves as a guide for building a safe, green, transparent, and open distribution network.