Weekly Update on Energy Storage Projects (June 23-27, 2025)

Weekly Update on Energy Storage Projects (June 23-27, 2025)

Several energy storage stations have made significant progress recently. Below is a summary of the developments in energy storage projects reported from June 23 to June 27, 2025:

Successful Black Start Test at China’s First Large-Scale Lithium-Sodium Hybrid Energy Storage Station

Recently, the Southern Power Grid Company successfully completed a black start test at the Baocun Energy Storage Station in Qubei County, Yunnan Province. This site is China’s first large-scale lithium-sodium hybrid energy storage station and features the country’s largest scale and highest voltage level for grid-forming energy storage. The test achieved a rapid black start within 20 seconds, promptly restoring power to over 660 households. This black start speed is among the best in the nation. The test took place at the Baocun Energy Storage Station, which has a total capacity of 200 MW/400 MWh and a maximum voltage level of 220 kV, spanning four voltage levels. It includes one 220 kV substation and two 220 kV renewable energy stations, with a black start path exceeding 100 kilometers. This successful test addresses the challenges of high-capacity, high-voltage black start without cooling, establishing stable off-grid operation for two hours with a combination of wind, solar, and storage.

Launch of the First Compressed Air Energy Storage Project in a Cold Region

On June 20, construction officially began on a 350 MW compressed air energy storage project in Taonan City, Jilin Province. This integrated demonstration project is China’s first compressed air energy storage facility in a cold region and the first of its kind in Jilin Province. The project, developed by China Energy Construction Group, features a self-developed energy storage system and an initial investment of approximately 4.3 billion yuan. It will include a 350 MW compressed air storage unit, with a storage capacity of 1,400 MWh, capable of storing energy for 7 hours and releasing it for 4 hours, with an operational target of 330 days per year and an expected annual output of around 462 million kWh.

Signing of a 400 MW/800 MWh Large-Scale Energy Storage Project in Yunnan

On June 19, during the 9th South Asia Expo in Yunnan, Hunan Bangjin Energy Technology Co., Ltd. signed an investment agreement with the Shizong County Government for an integrated renewable energy project. With strong support from the county government, Bangjin Energy plans to invest approximately 1.9 billion yuan to develop three major green energy projects, including a 400 MW/800 MWh large-scale energy storage station, a 100 MW decentralized wind power project, and a 100 MW distributed solar project.

100 MW/400 MWh Energy Storage Project in Inner Mongolia Begins Construction

On June 17, construction commenced on a 100 MW/400 MWh energy storage demonstration project in Eerduosi City, Inner Mongolia. This project, developed by Mingyang New Energy Co., Ltd., represents one of the first independent energy storage projects in Inner Mongolia, with a total investment of 460 million yuan. It is located in the Duguitala Town and will connect to the new 220 kV booster station before linking to the 500 kV substation.

150 MW/300 MWh Energy Storage Project in Jiangsu Connects to Grid

On June 24, the 150 MW/300 MWh energy storage project in Yancheng, Jiangsu Province, successfully connected to the grid. Developed by a joint venture between Yancheng Guotou Group and Wanbang Digital Energy, this project is based on lithium iron phosphate battery technology and occupies approximately 30 acres.

60 MW/120 MWh Multi-Energy Complementary Storage Project in Hebei Connects to Grid

The multi-energy complementary storage project in Cangzhou, Hebei, recently connected to the grid, marking a significant step in green energy transition in North China. This project, constructed by China Shipbuilding Industry Corporation, integrates solar, thermal, storage, and hydrogen technologies, with a total storage capacity of 60 MW/120 MWh.

Launch of Multiple Energy Storage Projects Across Various Regions

Several other significant energy storage projects have commenced construction or achieved grid connection during this period:

• The 50 MW/100 MWh energy storage project in Luoyang, Henan, led by Rising Sun (Luoyang) Energy Technology Co., Ltd.
• The 400 MW/1.6 GWh independent storage project in Aksu, Xinjiang, initiated by Dongfang Xuneng.
• The 200 MW/800 MWh comprehensive energy storage project in Kashgar, Xinjiang, developed by Changzhou Shangwei Environmental Services.
• The 100 MW/200 MWh independent storage project in Changzhou, Jiangsu, completed full-capacity grid connection.
• The 200 MW/400 MWh shared energy storage project in Ningxia, set to enhance grid stability.

These projects collectively contribute to advancing energy storage technologies and enhancing grid stability and renewable energy integration in various regions across China.