Core Viewpoint - The article discusses the innovative power supply assurance system implemented by the Southern Power Grid in Shenzhen during the 15th National Games and the Special Olympics, highlighting the integration of advanced technologies for efficient power management [1][2]. Group 1: Power Supply Assurance System - The Southern Power Grid Shenzhen Supply Bureau has developed the "All Electric Hong + Quantum Communication" smart power assurance system, which digitally replicates the status of 108 power assurance sites and over 100 substations [1]. - This system allows for real-time monitoring and early warning of power supply anomalies, significantly enhancing the efficiency of power assurance during the events [1]. Group 2: Technological Innovations - The "Electric Hong" system, developed based on open-source "Harmony" and "Euler," serves as the operational backbone for the power supply, enabling seamless communication between various monitoring terminals [2]. - The deployment of 2,000 monitoring terminals across different power assurance sites marks the first large-scale practical application of the Electric Hong system in a major event [2]. - The integration of quantum encryption technology in the communication lines aims to enhance data security and reduce construction costs, representing a pioneering effort in the power industry [2].