Chongqing strengthens the layout of new energy vehicle infrastructure and builds more than 2,000 super charging stations by the end of 2025

According to news from this site on April 4, the General Office of the Chongqing Municipal Government issued the "Chongqing Action Plan for Convenient Overcharging of New Energy Vehicles (2024-2025)" (hereinafter referred to as the "Action Plan").

The "Action Plan" proposes: By the end of 2025, new energy vehicles and supercharging networks will collaborate with each other, integrate and interact with the power grid, and build a convenient supercharging network with a balanced layout, convenient charging, smart and efficient, complete mechanisms, and advanced technology. Fully ecological and promote the coordinated and high-quality development of Chongqing’s new energy automobile industry. These include that all new public fast charging stations in central urban areas should have overcharging capabilities, and existing charging stations will be gradually transformed into overcharging stations to form a "1-kilometer overcharging circle."

In terms of key tasks, Chongqing hopes that by 2025, in accordance with the construction principles of "smart, convenient, moderately advanced", the central city will realize a dense distribution of overcharging infrastructure and build 1,340 overcharging stations; the main city new district and Wanzhou The district has achieved a reasonable layout and full coverage of overcharging infrastructure, with 430 overcharging stations built; the two groups of areas have achieved basic coverage of overcharging infrastructure, with 100 overcharging stations built; the highway service area has achieved full coverage with overcharging infrastructure , 170 supercharging stations have been built. The city has built 2,040 supercharging stations and 4,000 supercharging piles.

Key scenes such as public parking lots, commercial gathering areas, gas stations, rail transit facilities, squares and green spaces, highway service areas, city corners, bus terminals, tourist attractions, etc. in urban areas, Chongqing The construction of overcharging infrastructure will also be accelerated. Comprehensively considering the development situation of each district and county, population size, traffic intensity, promotion of supercharged models, station service radius and other factors, taking advantage of the layout advantages of gas stations, layout multiple services such as hydrogenation, charging and battery exchange, and accelerate the construction of convenient supercharging Ecology, help the city's charging infrastructure develop with high quality, and better support new energy vehicles going to the countryside.

The "Action Plan" proposes that when supporting the construction of liquid-cooled supercharging stations with a single gun power of 480 kilowatts and above, vehicle companies are encouraged to include supercharging and V2G into the functional scope of new energy vehicle products. In principle, the charging and storage integrated station shall be equipped with energy storage backup at a scale of no less than 10% of the distribution transformer capacity, a duration of no less than 1 hour, and a capacity of no less than 200 kilowatt hours. In the city's new supercharging stations, the charging and storage integrated station The quantity proportion shall not be less than 30%.

In order to meet the overcharging demand, the scale of overcharging stations in each district and county will be optimized and constructed between 2024 and 2025. In 2024, 1,005 supercharging stations will be built, including 700 in the central urban area, 180 in the main city new area and Wanzhou District, 40 in the two groups of areas, and 85 in the highway service area. These constructions will comprehensively consider factors such as strong overcharging demand, sufficient land resources, and sufficient power security to optimize construction timing, improve service capabilities, and better meet overcharging demand.

Chongqing will also continue to promote the construction of charging infrastructure in the Chengdu-Chongqing twin-city economic circle, and coordinate the construction of Chengdu-Chongqing intelligent network-connected new energy vehicle energy replenishment corridor. Comprehensively covering urban areas, large towns (streets), tourist attractions, and highway service areas along the way, achieving unified construction standards, data interconnection, and mutually beneficial sharing of resources. Focusing on the main highways in Chengdu and Chongqing, a highway power supply service network that is moderately advanced and focuses on overcharging will be formed to effectively ensure the charging needs of new energy vehicles traveling across provinces in the two places.

The "Action Plan" points out that it is necessary to rely on the municipal vehicle pile monitoring platform to speed up the construction of Chongqing's digital charging platform and incorporate it into the "Digital Chongqing" project to guide the city's full use of new energy vehicles and charging and swapping facilities. Access to achieve "one-click search for piles" on the JieCharging platform, allowing citizens to experience smarter charging services. Upgrade functions such as vehicle piles and pile file traceability and charging load monitoring and prediction, and use big data analysis and visualization methods to achieve digital management of new energy vehicles and charging and swapping facilities in the city. Integrate the third-party vehicle pile enterprise operation platform to support virtual power plants to aggregate charging and swapping facilities to participate in power market transactions, so as to achieve "observable, measurable, and controllable" charging and discharging loads in the city by 2025. Chongqing's digital charging platform will be built to achieve super Timely monitoring and management of charging, V2G, and intelligent priority charging loads.

In addition, Chongqing will carry out research on the impact of the high-power charging characteristics of supercharging stations on the regional power supply system, evaluate the grid access capabilities of supercharging stations hierarchically, prepare detailed rules for the grid to support supercharging station access, and strengthen distribution Early warning monitoring and response measures for areas with tight network power supply. Continue to promote the integration and connection between distribution network planning and supercharging station layout planning, appropriately build supporting power facilities in advance, and fully meet the power demand of supercharging stations. Relying on the construction of modern smart distribution networks, we will comprehensively improve the power distribution automation rate of the power grid, expand the comprehensive sensing capabilities of charging and discharging loads, and effectively ensure the security of the power grid.

The "Action Plan" also requires improving the level of interaction between new energy vehicles and the power grid, accelerating the construction of a charging infrastructure network system, promoting the intelligent transformation of power grid infrastructure, and carrying out mutual coordination and support of photovoltaic power generation, energy storage and energy saving, tram charging and other facilities. Pilot new smart microgrids for source, grid, load and storage to improve the grid's ability to accept, allocate and regulate clean energy. Actively explore the V2G application model of new energy vehicles, build V2G charging piles in public places such as parks, schools, hospitals, government agencies and institutions, and combine the trade-in action of consumer goods to encourage the purchase of new vehicles in public areas such as public transportation, official business, rental, shuttle buses, school buses, and sanitation. Configure V2G functions to accelerate the demonstration application of V2G two-way charging and discharging of vehicles in public areas. Give full play to the important role of new energy vehicles in the electrochemical energy storage system, strengthen the integration and interaction between new energy vehicles and the power grid, improve the power grid's peak and frequency regulation, safety and emergency response capabilities, and promote the Internet of Vehicles, vehicle-grid interaction, and the integration of source, grid, and load storage. Pilot demonstrations such as chemical and integrated optical storage and charging stations will be carried out to promote the local balancing of distributed power sources, vehicle discharge, energy storage, etc. and the grid-connection of surplus electricity. Vigorously promote intelligent and orderly charging. In principle, new charging infrastructure should adopt intelligent facilities. Promote the intelligent transformation of existing charging facilities as needed. Encourage charging operators to accept the entrustment of owners and carry out "unified construction and unified service" of charging and discharging facilities in residential areas. . Promote virtual power plants to widely aggregate various charging and discharging loads to achieve positive interaction between vehicles and networks. By the end of 2025, a total of 45 V2G demonstration projects in the public domain (23 V2G demonstration projects for public transportation) will be built in the central urban area, of which 22 V2G demonstration projects in the public domain (11 V2G demonstration projects for public transportation) will be built in the central city in 2024.

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