- PowerChina has announced that an official groundbreaking had taken place for the 1,000MW/6,000MWh battery energy storage facility in Chayouzhong Banner, Ulanqab, Inner Mongolia.
The project involves the construction of a 1,000MW/6,000MWh electrochemical shared energy storage station, covering an area of approximately 700 mu (about 46.7 hectares). The main infrastructure includes 1,200 units of 5.016MWh lithium iron phosphate (LFP) energy storage battery cabins, four 250MVA dual-split 220kV main transformers, and a new 220kV transmission line linked to the Chayouzhong 500kV substation.
Alongside advanced LFP energy storage technology the project features integrated power conversion systems (PCS), step-up systems and energy management systems (EMS). It can independently participate in grid frequency regulation, peak shaving, power market trading and capacity compensation, enabling multiple functions like peak load shifting and load tracking.
The project will enhance the flexibility and stability of the Mongolian Western Power Grid and mitigate the issue of wind and solar energy curtailment in the region. The project is expected to reduce wind power curtailment rates by over 15%, providing a critical buffer to the 1.5 GW wind power base in Ulan Chab. Furthermore, the project will ease the “West-to-East” electricity transmission bottleneck by connecting to the 500 kV substation in Chayou Zhong via a new 220 kV transmission line.
Author: Bryan Groenendaal
