Core Insights - The article discusses the implementation of Vehicle-to-Grid (V2G) technology in Changzhou, Jiangsu Province, where electric vehicles (EVs) can discharge power back to the grid during peak demand times, benefiting both the vehicle owners and the electricity grid [1][2]. Group 1: V2G Implementation - Changzhou is the only city in Jiangsu to be selected for the first batch of V2G pilot projects, which were announced by the National Development and Reform Commission and other departments in April 2025 [1]. - The V2G system allows EV owners to charge their vehicles during low electricity price periods and discharge power back to the grid during high price periods, effectively acting as a "power bank" for the grid [1]. Group 2: Charging and Discharging Patterns - Research by the State Grid Changzhou Power Supply Company indicates that residential EVs are primarily parked from 6 PM to 8 AM, coinciding with peak electricity demand, while office parking lots see high vehicle occupancy during daytime hours [1]. - A charging strategy called "valley charging + peak discharging + midday replenishment" has been designed to optimize energy use, utilizing solar power during the day and discharging during evening peak hours [1]. Group 3: Economic Benefits for Users - Users like Ms. Li have reported significant financial benefits from participating in the V2G program, with daily earnings from discharging power exceeding their charging costs, leading to a net gain of approximately 7 yuan per day [2]. - The operational model for V2G stations, such as the one at Xingxing Charging New Bridge Park, involves revenue-sharing with local streets and benefits from local subsidies, ensuring a reasonable investment return period [2].

"当前放电功率20千瓦，已供电量10.5千瓦时。"蒋先生在手机上打开"e充电"APP展示，自从去年8月底 在小区安装V2G（车网互动）桩以来，他的新能源汽车已累计向电网放电300多千瓦时，"晚上10点后， 车会自动用低谷电价补电，一充一放不仅自己获得了实惠，还支持了电网削峰填谷。" 责编：李芳、李雪钦 新能源汽车在电价低的时候充电，在电价高的时候像"充电宝"一样给电网放电，是常州正在开展的V2G 试点。2025年4月，国家发展改革委等部门发布首批车网互动规模化应用试点，常州是江苏唯一试点城 市。 V2G建设需要运营商的积极投入。在常州新北区的星星充电新桥公园充电站内，10根120千瓦的双枪 V2G桩持续运行。星星充电江苏省运营总监潘叶峰介绍，场地采用与新桥街道分成的模式，充电桩使用 企业自己生产的产品，常州还有相应的补贴政策，该场站投运以来运行平稳，投资回报周期处于合理区 间。（记者 尹晓宇） 下午4点多，在江苏省常州市溪湖小镇小区，车主蒋先生的新能源汽车插着充电枪进行放电，充电桩的 计量表上数字闪烁。 《人民日报》（2026年01月26日 第 08 版） 如何充放电收益最大？国网常州供电公司工作人员在调研中 ...