Core Insights - The article highlights the acceleration of the "source-network-load-storage" integrated model in China, driven by national energy transition and dual carbon goals [1] - The Hengshan Science City incremental distribution pilot project, operated by Hengyang Zhongran Energy Co., Ltd., is presented as a typical example of regional comprehensive energy service models [1] Group 1: Project Overview - Hengyang Zhongran is the sole distribution and sales operator in the 26.5 square kilometer pilot area of Hengshan Science City, holding exclusive rights for electricity and centralized heating [1] - The company is responsible for the investment, construction, and operation of the incremental distribution network, extending into comprehensive energy services including photovoltaic, energy storage, charging facilities, and distributed gas energy systems [1] Group 2: Infrastructure and Capacity - The supply area of Hengyang Zhongran covers the entire Hengshan Science City, featuring one 110kV Mingyan substation with a main transformer capacity of 63 MVA [1] - The infrastructure includes 5.74 kilometers of 110kV overhead lines, 38 towers, and a total capacity of 99,450 kVA for distribution transformers, supporting diverse load stability in the region [1] Group 3: Energy Storage and Economic Impact - The Mingyan substation's associated energy storage project was commissioned last year, achieving a key breakthrough in the storage segment with an operational efficiency of approximately 90% and over 600 annual cycles, saving around 3.3 million yuan in electricity costs [2] - The implementation of the integrated model has significantly improved the regional grid's capacity to accept intermittent power sources like distributed photovoltaics, reducing voltage fluctuations and overload risks [2] Group 4: Economic and Energy Security Benefits - The optimization of energy dispatch strategies has led to balanced load management, mitigating cost increases from peak electricity prices and effectively controlling overall electricity costs [2] - The model enhances the system's resilience against disturbances and emergency response capabilities, ensuring continuous power supply for critical loads during emergencies, while diversifying energy supply and reducing dependence on single energy sources [2]