CATL(SZ:300750) 3 6 Ke·2025-08-05 05:41Core Viewpoint - The article discusses the emergence of vehicle-to-grid (V2G) technology as a solution to the increasing electricity demand during the summer heat, allowing electric vehicles (EVs) to not only consume electricity but also supply it back to the grid, creating a new economic model for EV owners and enhancing grid stability [1][2][3]. Group 1: Electricity Demand and Supply Challenges - The electricity load in Wuhan reached 17.048 million kilowatts, a year-on-year increase of 26.48%, marking the first peak load of the year, occurring 20 days earlier than last year [1]. - Nationally, the total electricity load hit a historical high of 1.465 billion kilowatts, with several provinces experiencing overloads [1][2]. - Traditional methods to manage electricity supply are insufficient, prompting the need for innovative solutions like V2G technology [2]. Group 2: Vehicle-to-Grid (V2G) Technology - V2G technology allows EVs to discharge electricity back to the grid during peak demand, thus participating in load balancing and improving energy efficiency [3][4]. - EV owners can charge their vehicles during off-peak hours and sell electricity back to the grid during peak hours, creating a profit margin [3][4]. - In specific cases, EVs have provided emergency power to areas experiencing outages, with compensation through carbon credit systems [4]. Group 3: Economic Incentives and Policy Support - Policies such as the V2G subsidy in Hangzhou provide financial incentives for EV owners to participate in V2G programs, with subsidies reaching up to 2 yuan per kilowatt-hour [5]. - Concerns about battery lifespan due to frequent charging and discharging are addressed, indicating that current battery technologies can support this usage without significant degradation [5][6]. - The introduction of advanced battery technologies, such as sodium-ion batteries, promises even longer lifespans and better performance under extreme conditions [6]. Group 4: Broader Implications for Society - The V2G model not only benefits individual EV owners but also contributes to the overall stability and efficiency of the electricity grid, facilitating the integration of renewable energy sources [7][8]. - As V2G technology becomes more widespread, it is expected to enhance the resilience of the power grid and support the transition to a low-carbon economy [8][9]. - The concept of EVs as "mobile power banks" is gaining traction, with potential for significant economic benefits for users while supporting grid management [9].