By ESS news
In the last days of December 2025, the world’s largest electrochemical energy storage plant – the 4 GWh Envision Jingyi Chagan Hada Energy Storage Power Station – was successfully connected to the electricity grid. This milestone marked the completion and grid connection of Envision’s 12.8 GWh energy storage cluster in Inner Mongolia.
In addition to the flagship location, the other projects are in Bayannur, Ordos, Hohhot, Ulanqab, Xilingol League and Alxa League, bringing the Envision-led energy storage projects in Inner Mongolia to a total capacity of more than 14 GWh. To facilitate local implementation, the manufacturer has established a complete industrial chain in Inner Mongolia, from battery cells and system integration to project delivery and intelligent control.
Imagine reported in early January that the 4 GWh flagship project has passed grid verification at rated power through “three charge and three discharge tests” and a 72-hour continuous trial operation on the first attempt, making it the largest energy storage project in China to complete such tests.
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