Changzhou is turning electric vehicles into mobile power banks— where EVs not only consume electricity but also feed it back to the grid.

The city recently earned another national distinction as the only city in Jiangsu province selected among China's first batch of Vehicle-to-Grid (V2G) integration pilot cities. This recognition marks a crucial milestone in Changzhou's development of new energy and power systems.

Industrial foundations showcase city's strength

As one of Changzhou's ten key advanced manufacturing clusters, the EV and auto parts sector has become a provincial model for strategic emerging industrial development. Changzhou now produces over 60% of Jiangsu's EVs, with power battery production and sales leading nationally. Industry leaders BYD and Li Auto collaborate with more than 3,400 supporting enterprises, creating an integrated innovation ecosystem between vehicle manufacturers and parts suppliers.

The city's charging infrastructure network is equally impressive, developed by local leader StarCharge along with over 30 industry giants including State Grid EV Service, TELD, CHJ, CAMS, and NIO. Changzhou has installed more than 100,000 charging points, including over 90,000 residential units, creating a "5-minute charging service circle" with peak charging capacity approaching 200,000 kW - providing solid foundations for V2G development.

Two-way energy exchange creates new low-carbon model

Changzhou's "Parking+Charging" integrated platform - the first of its kind in Jiangsu - enables two-way energy flow, allowing EV owners to easily manage their mobile "power banks." The province's first virtual power plant platform further facilitates participation in electricity markets, delivering real benefits to users while optimizing green energy distribution.

The city's 50+ solar-storage-charging stations and 30 battery swap stations have already facilitated over 200 V2G discharging events. Recently, over 90,000 households with charging points received SMS alerts advising off-peak charging (0.3783 yuan/kWh vs. peak rate of 0.5783 yuan).

With over 200,000 EVs currently registered, if all vehicles participated in V2G, Changzhou would effectively gain a mobile energy storage "amplifier" of million-kW scale.

The city's 390 electric buses across nine charging stations already participate in grid valley-filling services, coordinating 15,000 kW of adjustable load capacity during off-peak hours to reduce operational costs while demonstrating public sector leadership in green mobility.

Policy framework supports new ecosystem

Following the national V2G implementation guideline issued in late 2023 (China's first top-level V2G policy), Jiangsu province specifically endorsed Changzhou's development of intelligent EV operation platforms with smart charging and V2G capabilities. Changzhou further strengthened its position by pioneering municipal regulations for new energy development, including specific provisions for charging infrastructure planning.

This year, Changzhou will accelerate V2G implementation by: Engaging charging operators in electricity markets; Establishing pilot communities; Introducing economic incentives to encourage off-peak charging and peak-time discharging - implementing coordinated measures to achieve the pilot city objectives and establish national standards for V2G development.

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