Jinchang connects first large-scale grid-side independent energy storage project
On Oct 25, Jinchang in Gansu province connected its first large-scale grid-side independent energy storage project, the Guozong Zhongsheng 200 MW/800 MWh facility, to the grid. The project marks a major step in the city's ability to balance electricity supply and demand, integrate renewable energy and maintain grid stability.
State Grid Jinchang Power Supply Company provided end-to-end support. It formed a task force covering development, dispatching, marketing, equipment, and communications to address difficulties across the project lifecycle.
The team reviewed filing, scheme review, equipment commissioning, and grid-connection acceptance, then compiled a service manual outlining procedures, documents, approval points, and common issues. It also held meetings to check communication channels, remote signaling, cybersecurity, relay protection, and stability-control strategies.
Regular on-site services included inspections, technical briefings, hazard checks, and plan coordination. The company tracked progress, answered technical questions, and pre-reviewed e-Grid materials to support efficient and safe connection.
Located in the Xipo Photovoltaic Industrial Park in Jinchuan district, the project uses lithium iron phosphate electrochemical storage and connects to the main grid through the 330 kV Zhengjiao Substation linked to the Zhengfa aggregation step-up station.
Once it begins operating, it will support peak shaving, valley filling, frequency regulation, peak adjustment, and emergency backup. It is expected to help absorb about 210 million kWh of renewable energy annually, improving grid stability and renewable integration in Jinchang. The project is now in trial operation and is undergoing grid-related tests.
State Grid Jinchang will continue tracking the project's operation and follow-up services. It will also accelerate connection of the ongoing 115 MW/460 MWh independent storage project where feasible, promoting coordinated operation among wind, solar, hydro, thermal, and storage resources to support high-quality renewable energy development in the city.
