on January 4, 2026, with the successful closing of the 101 circuit breaker of the 110kV strict second storage line of the zhongning upper storage huayan second energy storage power station, the power transmission of the no. 1 main transformer was successful once, marking the formal grid-connection and operation of the upper storage energy 100MW/200MWh shared energy storage power station. The project is located in the industrial park of Zhongning County, Ningxia. It is a key part of the large-scale energy storage layout of Ningxia power grid. After completion, it will significantly enhance the adjustment capacity of the regional power grid and help the new energy consumption and the safe and stable operation of the power grid.
the project adopts lithium iron phosphate battery system and is equipped with 30 sets of energy storage units. after converging through 4 35kV collector lines, it is boosted by the newly-built 110kV booster station and finally connected to 330kV huayan substation with one 110kV line. The power station has an energy storage capacity of 200MWh, which is equivalent to a medium-sized "power granary". It can release electricity at peak power consumption, store electricity when new energy power generation is abundant, effectively stabilize the volatility of wind and solar power generation, and improve the flexibility of power grid operation and clean energy utilization.
Professional operation and maintenance escort to ensure a successful grid connection
The smooth implementation of this grid connection, it is inseparable from professional operation and maintenance support. As a power station operation and maintenance partner, Shanghai Tianwei Energy Technology Co., Ltd. planned in advance and deployed the system, laying a solid foundation for power station grid connection and long-term stable operation.
Tianwei operation and maintenance team was deeply involved in the production preparation stage of the project, actively cooperated with the installation, construction and commissioning work, and carried out the operation and maintenance system construction and personnel training in advance to ensure that all staff were certified to work. The team actively connects with power grid dispatching and efficiently completes grid-connected data submission. The system prepares operation procedures, maintenance procedures, safety production management system and start-up and operation plan; Organize safety technical disclosure and operation simulation rehearsal, and complete all-round inspection of the whole station before power transmission. During the grid-connected operation, the team implemented a strict operation ticket and monitoring system to achieve unified command and orderly operation, ensuring the safe, efficient and successful power transmission process.
