Jiangxi’s First Smart Microgrid Successfully Built and Put into Operation

Nanjishan Township is located within the Poyang Lake Wetland Nature Reserve. During flood seasons, road access is often cut off, and the power grid has long faced the risk of “islanded operation,” resulting in relatively low power supply reliability. Due to limited corridor resources within the reserve, traditional grid upgrades have been difficult to implement. In response, after conducting detailed on-site surveys, State Grid Nanchang Power Supply Company developed a construction plan centered on energy storage as the core with smart regulation.

On November 20, technicians from State Grid Nanchang Power Supply Company conducted an inspection at the energy storage station of the Nanjishan microgrid, Photo by Huang Meifeng

The project commenced at the end of 2024. Overcoming challenges such as the lack of prior experience and technical complexities, the team successfully achieved grid connection in November this year. This microgrid is capable of energy autonomy in islanded mode, allowing it to swiftly switch to islanded operation in the event of main grid failures. Relying on energy storage systems, it can continuously supply power, ensuring uninterrupted electricity for residents’ daily lives and critical facilities. With the microgrid now operational, the power supply reliability in the Nanjishan area will increase to 99.99%.

Beyond improving power supply reliability, the microgrid also showcases its “smart” features: V2G charging stations enable bidirectional energy interaction between electric vehicles and the grid, while the microgrid controller acts as an “energy brain,” optimizing the coordinated operation of energy storage and loads in real time to enhance energy utilization efficiency.

On November 20, technicians from State Grid Nanchang Power Supply Company conducted an inspection at the energy storage station of the Nanjishan microgrid, Photo by Huang Meifeng

As the first phase of the “Zero-Carbon Microgrid” plan for Nanjishan, this project has established a reliable “energy fortress” for the area. The future second phase will introduce renewable energy sources such as photovoltaic and wind power, with an estimated annual reduction of approximately 1,400 tons of carbon dioxide emissions. This initiative will further integrate zero-carbon energy with ecological conservation and rural revitalization. (Fan Kuan, Huang Meifeng)