Weekly Update on Energy Storage Projects (May 26 – May 30, 2025)

Recently, several energy storage stations have made significant progress. Below is a summary of the developments in energy storage projects reported from May 26 to May 30, 2025:

Launch of China’s First Large-Scale Lithium-Sodium Hybrid Energy Storage Station

On May 25, the first large-scale lithium-sodium hybrid energy storage station in China, the Baocai Energy Storage Station operated by the Southern Power Grid, officially commenced operations in Qiubei County, Yunnan Province. This station is part of the national pilot demonstration project for new energy storage and is one of the first concentrated shared new energy storage pilot projects in Yunnan. With a capacity of 200 MW/400 MWh, the station can adjust an annual power output of 580 million kWh, which is equivalent to the annual electricity consumption of nearly 270,000 households, with a green energy ratio of up to 98%. The project was invested and constructed by the Southern Power Grid Energy Storage Company, which began construction in October 2024 and successfully completed testing and verification in May.

Inner Mongolia’s First Off-Grid Wind Power Project Achieves Full Capacity

On May 23, the first off-grid wind power project in Inner Mongolia, the Green Power Supply Project operated by the Three Gorges Group, successfully achieved full capacity grid connection. Located in the Ordos City, this project has a total installed capacity of 300,000 kW, featuring 48 wind turbines with a capacity of 6.25 MW each, along with a new energy storage system of 45,000 kW × 4 hours. It is expected to generate 870 million kWh annually, saving approximately 260,000 tons of standard coal and reducing carbon emissions by around 710,000 tons.

Huadian Yunnan Dali Shared Energy Storage Project Goes Live

On May 25 at 15:00, the Heqing Shared Energy Storage Project, constructed by Xinneng throughout its entire process, was fully commissioned. Construction commenced on February 16, 2025, and after successful grid connection of the booster station on May 15, full capacity was achieved in just 88 days.

New User-Side Energy Storage Project in Anhui Begins Operations

On the morning of May 25, a 37.5 MW/100.5 MWh user-side energy storage project in Hecun County, Ma’anshan City, commenced operations, coinciding with a project signing ceremony. With a total investment of 115 million yuan, this project is the first user-side lithium battery energy storage EPC project from Tianneng Holding Group and the largest benchmark project in Anhui. It employs an integrated model of “source-network-load-storage” with a lithium iron phosphate energy storage system.

Commercial Energy Storage Project in Zhoukou Begins Operation

On May 23, a commercial energy storage project invested by the Zhoukou Natural Gas Company officially began operation. This project marks a significant transition for the company from a single gas supply service to comprehensive energy service. Located in the Zhoukou Economic Development Zone, it features a storage system capacity of 2,500 kW/5,200 kWh and employs a customized service model to meet the energy needs of commercial users.

Gansu’s 300 MW/1200 MWh Independent Energy Storage Project Commences

On May 23, construction began on a 300 MW/1200 MWh independent energy storage project in Wuwei City, Gansu Province. With a total investment of 1.3 billion yuan, the project will utilize lithium iron phosphate battery technology and build a supporting 330 kV booster station.

Jiawei New Energy Launches 20 MW/40 MWh Storage Project in Sichuan

On May 23, a 20 MW/40 MWh energy storage project in Yuechi, Sichuan, officially commenced construction. The project will enhance the peak shaving capabilities of the regional power grid through intelligent equipment.

CSIC Wind Sail’s First Park-type User-Side Storage Project Online

Recently, CSIC Wind Sail’s first park-type user-side energy storage project of 2 MW/6 MWh successfully connected to the grid. Located in Gaoyou City, Jiangsu Province, it utilizes strategies like peak-valley arbitrage to optimize energy costs for enterprises.

Zhejiang West Data Center User-Side Energy Storage Project Kicks Off

The Zhejiang West Data Center user-side energy storage project started construction recently, with a planned first phase of 3.3 MW/7.095 MWh. The project uses advanced liquid cooling technology to enhance system efficiency and safety.

Chengde’s 200 MW Integrated Solar and Storage Project Fully Connected

On the evening of May 22, the 200 MW integrated solar and storage project in Chengde City successfully completed all power delivery operations and achieved full grid connection on May 23.

Chengdu’s First 100,000 kW/200,000 kWh Grid-Side Energy Storage Station Launches

On May 26, the Dengshuang energy storage station in Chengdu, with a capacity of 100,000 kW/200,000 kWh, began operations, marking a significant advancement in Chengdu’s new power system.

Launch of the First 20 MWh New Thermal Energy Storage System in China

On May 26, the first 20 MWh new thermal energy storage system in China commenced operation, representing a major technological breakthrough in flexible power generation for coal-fired units.

Yunnan’s 200 MW Shared Energy Storage Station Established

On May 26, a 200 MW/400 MWh shared energy storage station in Chuxiong City successfully completed its initial grid connection. This project employs lithium iron phosphate battery technology and aims to optimize the regional energy structure.

Completion of the First High-Temperature, High-Pressure, Adiabatic Salt Cavity Energy Storage Project

On May 25, the first of its kind high-temperature, high-pressure, adiabatic salt cavity energy storage project successfully completed its commissioning, paving the way for future developments in the field.

Xinjiang’s 200 MW/1 GWh All-Vanadium Flow Energy Storage Project Begins Operation

On May 28, the 200 MW/1 GWh all-vanadium flow energy storage project in Changji, Xinjiang, commenced operation, marking the longest storage duration of any flow energy storage project in the region.

Ningxia’s First Integrated Source-Network-Load-Storage Project Set to Connect by Year-End

On May 28, construction started on Ningxia’s first integrated source-network-load-storage project, which includes a 115 MW solar facility and a 30 MW/60 MWh energy storage station.

Guangxi’s 300 MW/600 MWh Energy Storage Project Signed

On May 26, the signing ceremony for a 300 MW/600 MWh energy storage project in Pingguo City, Guangxi, took place, aiming to enhance energy structure and stability.

Inner Mongolia’s 500 MW Wind-Storage Project Begins

On May 28, construction began on a 500 MW wind-storage project in Damao Banner, Inner Mongolia, designed to improve regional energy supply stability and flexibility.

Guodian Yongfu’s 100 MW/200 MWh Independent Shared Energy Storage Project Enters Commercial Operation

On May 28, Guodian Yongfu’s independent shared energy storage project completed load curve testing and officially transitioned to commercial operation.

Shandong’s Zhe’an Laiwu Independent Shared Energy Storage Project Online

Recently, the Zhe’an Laiwu independent shared energy storage project, invested by Shandong Expressway Group, successfully connected to the grid, becoming the first energy storage project in Shandong’s 2024 new energy storage project library.

Yunnan’s 120 MW/240 MWh Energy Storage Station Project Launched

On May 29, the 120 MW/240 MWh energy storage project in Kunming City successfully commenced operations, utilizing lithium iron phosphate technology.