- Six Nio battery swap stations delivered a peak power output of 1,540 kW during the trial, contributing 15% of the total discharge share.
- The trial involved 70 energy facilities in total, comprising 56 charging stations and 14 battery swap stations.
Nio Inc (NYSE: NIO, HKG: 9866) participated in a large-scale V2G (vehicle-to-grid) trial in Jiangsu, eastern China, exploring power supply to the grid using its battery swap stations.
Nio's six fourth-generation battery swap stations participated in the trial on January 22 in Nanjing, the capital city of Jiangsu province, according to a Tuesday WeChat post by Chinese polysilicon producer GCL Energy Technology.
These stations, retrofitted with V2G capabilities by GCL and Nio, delivered a peak power output of 1,539.85 kilowatts during evening peak hours, accounting for 15% of the discharge share in the test.
The trial scale increased by 80% compared to a similar 2025 test, involving 70 energy facilities — including 56 charging stations and 14 V2G-enabled battery swap stations.
GCL and Nio previously collaborated to launch Suzhou's first carbon-neutral battery swap station in late 2024, according to the company.
Beyond swapping batteries for electric vehicles (EVs), battery swap stations also function as small-scale energy storage facilities, enabling their participation in grid frequency regulation.
Nio began testing power discharge from its battery swap stations to the grid in China as early as 2022. Last November, the company announced its battery swap stations in Sweden had received approval to participate in local grid frequency regulation.
In January 2024, Nio launched 10 V2G destination charging stations in Shanghai, marking its first such facilities in its headquarters city.
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