Ge Long Hui A P P·2025-11-10 02:46Core Viewpoint - The integration model of "source-network-load-storage" is accelerating implementation across the country, with the Hengshan Science City incremental distribution pilot project led by Hengyang Zhongran Energy becoming a typical example of regional comprehensive energy service models [1][8]. Group 1: Project Overview - Hengyang Zhongran is the sole distribution and sales electricity operator in the 26.5 square kilometer pilot area of Hengshan Science City, holding exclusive rights for electricity and centralized heating [3]. - The company is responsible for the investment, construction, and operation of the incremental distribution network, extending to comprehensive energy services including photovoltaic, energy storage, charging facilities, and distributed gas energy systems [3]. Group 2: System Features - The project features a well-structured power grid with a 110kV substation and various transmission lines, supporting diverse load demands and ensuring stable electricity supply [3][5]. - As of now, there are nearly 8,000 registered users in the area, with an annual electricity supply of over 40 million kilowatt-hours, indicating a diverse and growing electricity load [5]. Group 3: Energy Storage and Economic Impact - The 110kV substation's energy storage project is set to be operational in 2024, utilizing a "two charge, two discharge" strategy with an efficiency of approximately 90%, potentially saving 3.3 million yuan annually [6]. - The energy storage system helps balance electricity load, alleviating peak demand pressures and enhancing grid stability, while also improving the acceptance of intermittent renewable energy sources [6]. Group 4: Energy Security and Environmental Benefits - The integration model enhances the system's resilience and emergency response capabilities, ensuring continuous power supply during disruptions and reducing reliance on single energy sources [8]. - The project promotes digital and information technology applications, advancing smart grid development and significantly reducing fossil fuel consumption and greenhouse gas emissions [8]. Group 5: Future Prospects - The project exemplifies the deep integration of incremental distribution reform and comprehensive energy services, providing a practical reference for similar energy system constructions in other industrial parks and new urban development areas [8]. - With decreasing costs of photovoltaic and energy storage technologies and increased policy support, such integrated models are expected to be promoted in more regions in the future [8].