Top Energy Storage Projects in China in H1 2026
In the first half of 2026, China’s new energy storage sector maintained rapid growth momentum, with multiple breakthroughs achieved in grid-connected projects. Notably, industry development is no longer focused solely on maximizing individual project scale. While lithium iron phosphate (LFP) battery storage remains the dominant technology route, the industry is gradually shifting from simply expanding installed capacity toward improving the overall performance and efficiency of energy storage systems.
Energy storage technologies are becoming increasingly diversified. Beyond lithium-ion batteries, long-duration energy storage technologies such as vanadium redox flow batteries and compressed air energy storage have achieved large-scale grid-connected demonstrations. Emerging technologies, including semi-solid-state batteries, have also entered engineering demonstration stages. Meanwhile, grid-forming energy storage, intelligent string-based storage systems, and cloud-based energy storage solutions are accelerating commercialization and deployment.
Energy storage application scenarios continue to expand, covering a wide range of use cases including generation-side, grid-side, behind-the-meter, and standalone energy storage. Integrated models such as solar-storage, solar-hydrogen-storage, and grassland photovoltaic complementary storage projects are also being implemented.
The China Energy Storage Alliance (CNESA) has compiled representative new energy storage projects launched or connected to the grid in the first half of 2026 for industry reference.
01
China’s Largest Offshore PV-Hydrogen-Storage Integrated Demonstration Project
Guohua Investment Jiangsu Rudong Offshore PV-Hydrogen-Storage Integrated Project
Grid Connection Date: June 2026
Location: Jiangsu Province
Owner: Guohua (Rudong) New Energy Co., Ltd.
Energy Storage Technology: Lithium Iron Phosphate (LFP) Battery Storage
Storage Scale: 60MW/120MWh
Located at Yangkou Port in Rudong, Jiangsu Province, the project is one of the key projects under China’s third batch of large-scale photovoltaic bases.
The project integrates a 400MW photovoltaic power plant, a 60MW/120MWh energy storage system, and a green hydrogen production facility with a capacity of 1,500 NmÂł/h, forming a complete industrial chain covering green electricity generation, storage, and conversion.
02
China’s Largest Single-Site PV + Energy Storage Project
Ningxia Yongli 300MW/600MWh Energy Storage Project
Grid Connection Date: June 2026
Location: Ningxia Hui Autonomous Region
Owner: Ningxia Dian Investment Yongli (Zhongwei) New Energy Co., Ltd.
Energy Storage Technology: Lithium Iron Phosphate (LFP) Battery Storage
Storage Scale: 300MW/600MWh
Located in Shapotou District, Zhongwei City, Ningxia, the project was developed specifically to support the 3GW photovoltaic base in Zhongwei.
The project consists of three independent energy storage stations — No.1, No.2, and No.3 — each with a capacity of 100MW/200MWh. The combined installed capacity reaches 300MW/600MWh.
03
China’s Largest Vanadium Flow Battery Energy Storage Power Station
Three Gorges Group Xinjiang Jimusar 1GW PV + Vanadium Flow Battery Energy Storage Integrated Project
Grid Connection Date: June 2026
Location: Xinjiang
Owner: Three Gorges New Energy Jimusar Power Generation Co., Ltd.
Energy Storage Technology: Vanadium Redox Flow Battery (VRFB)
Storage Scale: 200MW/1000MWh
Located in Jimusar County, Changji Hui Autonomous Prefecture, Xinjiang, the project features a rated power capacity of 200MW and an energy storage capacity of 1,000MWh.
It is currently the largest vanadium flow battery energy storage power station in China, representing a major milestone in the large-scale application of long-duration energy storage technologies.
04
China’s First Desert Grassland “PV + Grassland Complementary” Pilot Project
Huaneng Inner Mongolia Tongwei Green Materials New Energy Storage Project
Grid Connection Date: May 2026
Location: Inner Mongolia Autonomous Region
Owner: Baotou No.1 Thermal Power Plant, North United Power Co., Ltd. (Huaneng North China Company)
Energy Storage Technology: Lithium Iron Phosphate (LFP) Battery Storage
Storage Scale: 90MW/360MWh
Developed by Huaneng North China Company’s Baotou No.1 Thermal Power Plant, the project has a planned renewable energy capacity of 350MW, including:
300MW wind power
50MW photovoltaic power
90MW/360MWh electrochemical energy storage system
The project adopts a “grassland + photovoltaic” complementary model, with renewable electricity accounting for 50.17% of the electricity consumption of the industrial silicon production facility.
05
The Industry’s First Fully Green Electricity Demonstration Factory
Baima Mountain Fully Green Electricity Factory
Grid Connection Date: March 2026
Location: Anhui Province
Owner: Anhui Conch Group
Energy Storage Technology: Lithium Iron Phosphate (LFP) Battery Storage
Storage Scale: 22.5MW/45MWh
Located in Wuhu, Anhui Province, the project is the industry’s first fully green electricity demonstration factory integrating:
photovoltaic power generation
electrochemical energy storage
smart microgrid systems
new energy vehicle charging infrastructure
Building on waste heat power generation from cement kilns, the project innovatively expands photovoltaic deployment across multiple scenarios, including:
rooftop and corridor spaces
building facades
floating PV systems on water surfaces
curved roof structures
By utilizing more than 130,000 square meters of available space, the project integrates renewable generation and energy storage systems to establish a multi-energy complementary energy ecosystem.
06
China's First Distribution-Level Aqueous Organic Flow Battery Energy Storage Project
Suqian Era Aqueous Organic Flow Battery Distribution-Level Energy Storage Project
Grid Connection Date: March 2026
Location: Jiangsu Province and Anhui Province
Energy Storage Technology: Aqueous Organic Flow Battery
Storage Capacity: 60kW/120kWh
The project represents China's first deployment of an aqueous organic flow battery energy storage system at the distribution-transformer level.
It achieved several technological breakthroughs, including the development of an organic quaternary ammonium salt-based electrolyte system, a high-ion-conductivity anion exchange membrane, and advanced multi-physics coupled control technology.
Jointly developed by Suqian Era Energy Storage Technology Co., Ltd. and State Grid Electric Power Research Institute, the project was commissioned in Suqian Economic Development Zone, Jiangsu Province, with a parallel deployment in Chuzhou, Anhui Province.
07
China's Largest Single-Site PV Project in a Coal Mining Subsidence Area
Ningxia Lingwu 4GW PV Project in a Coal Mining Subsidence Area
Grid Connection Date: February 2026
Location: Ningxia Hui Autonomous Region
Owner:CHN Energy
Energy Storage Technology: Lithium Iron Phosphate (LFP)
Storage Capacity: 400MW/800MWh
The project is being developed in two phases with a total installed PV capacity of 4GW, making it China's largest single-site photovoltaic project built on a former coal mining subsidence area.
As one of the key projects under China's second batch of large-scale desert, Gobi, and wasteland renewable energy bases, it also serves as an important green power source for the Ningxia–Zhejiang LingShao UHV DC transmission corridor.
The project is planned to include 600MW/1,200MWh of battery energy storage, of which 400MW/800MWh has already been commissioned.
08
World's Largest Compressed Air Energy Storage Power Station
Jiangsu Guoxin Suyan Huai'an Salt Cavern Compressed Air Energy Storage Demonstration Project
Grid Connection Date: January 2026
Location: Jiangsu Province
Owner: Jiangsu Guoxin Suyan (Huai'an) Energy Storage Power Generation Co., Ltd.
Energy Storage Technology: Compressed Air Energy Storage (CAES)
Storage Capacity: 2 Ă— 300MW / 2,400MWh
The project utilizes underground salt caverns in Huai'an, Jiangsu Province, to construct two 300MW non-fuel supplementary compressed air energy storage units.
It adopts internationally advanced high-temperature adiabatic compressed air energy storage technology, combining molten salt thermal storage with pressurized hot water heat storage.
With a total storage capacity of 2,400MWh and a round-trip efficiency of approximately 71%, it is currently the world's largest compressed air energy storage power station.
09
China's Largest Sodium-Ion Battery Energy Storage Power Station Under Construction
Honghu 100MW/200MWh Sodium-Ion Battery Energy Storage Demonstration Project (Phase I)
Phase I Grid Connection Date: January 2026
Location: Hubei Province
Owner: Honghu Suifa New Energy Co., Ltd. (a wholly owned subsidiary of Guangzhou Development Group)
Energy Storage Technology: Sodium-Ion Battery
Phase I Capacity: 50MW/100MWh
The project is one of Hubei Province's first batch of new energy storage demonstration projects.
Phase I includes a 50MW/100MWh sodium-ion battery energy storage system, a new 110kV booster substation, and a dedicated transmission line connecting to the Maojiang 110kV substation.
Once fully completed, the project is expected to become one of China's largest sodium-ion battery energy storage power stations, demonstrating the commercial potential of sodium-ion technology for grid-scale applications.
10
China's First 100MWh Distribution-Level Cloud Energy Storage Demonstration Project
State Grid Shandong Integrated Energy Service Cloud Energy Storage Demonstration Project
Grid Connection Date: January 2026
Location: Shandong Province
Storage Capacity: 50MW/100MWh
As China's first 100MWh cloud energy storage demonstration project, the initiative is built around the concept of distributed aggregation, cloud-based dispatch, and intelligent coordination.
The project enables centralized management and flexible dispatch of a large number of geographically distributed energy storage resources, providing an innovative solution for improving grid flexibility, renewable energy integration, and distributed energy resource management.
Milestone Projects Commissioned at the End of 2025
While a wide range of innovative energy storage projects entered operation during the first half of 2026, several landmark projects commissioned in late 2025 also deserve recognition for their technological significance. These projects span hybrid energy storage, ultra-large-scale lithium battery storage, semi-solid-state battery systems, intelligent string-based energy storage, and other cutting-edge applications, further demonstrating China's accelerating innovation in the energy storage sector.
11
China's First 100MW-Scale Hybrid Energy Storage Demonstration Project Combining Supercapacitors and Lithium Batteries
Shunde Demonstration Base Project of the Guangdong New-type Energy Storage Innovation Center
Grid Connection Date: December 2025
Location: Guangdong Province
Owner: Guangdong New-type Energy Storage National Research Institute Co., Ltd.
Energy Storage Technology: Supercapacitors + Lithium Iron Phosphate (LFP) Batteries
Storage Capacity: 200MW/305MWh
As China's first commercial-scale demonstration project integrating supercapacitors and lithium batteries, the project validates the technical and commercial viability of hybrid energy storage systems at the 100MW scale.
The project utilizes domestically developed high-energy-density, high-power supercapacitors (90Wh/kg with a service life exceeding 100,000 charge-discharge cycles) and adopts a hybrid configuration consisting of 50MW/5MWh of supercapacitors and 150MW/300MWh of LFP battery storage.
By combining the ultra-fast response capability of supercapacitors with the long-duration energy support of lithium batteries, the system provides multiple grid services, including grid-forming support, primary and secondary frequency regulation, and sustained energy balancing, offering a comprehensive solution for next-generation power systems.
12
China's Largest Intelligent String Energy Storage Power Station by Single-Site Capacity
220kV Boxian Xingguang Energy Storage Power Station
Grid Connection Date: December 2025
Location: Inner Mongolia Autonomous Region
Owner: Baotou Boxian New Energy Technology Co., Ltd. (a wholly owned subsidiary of HyperStrong)
Energy Storage Technology: Lithium Iron Phosphate (LFP) Batteries
Storage Capacity: 400MW/2,400MWh
With a total capacity of 400MW/2,400MWh, the project is China's largest intelligent string energy storage power station by single-site capacity.
Developed by HyperStrong, the project features Huawei's intelligent string grid-forming PCS alongside HyperStrong's industry-leading 7MWh high-capacity battery energy storage system, enhancing system safety, operational flexibility, and grid support capability.
13
China's Largest Independent Grid-side Energy Storage Demonstration Project
Baotou Weijun 500MW/3,000MWh Independent Grid-side Energy Storage Demonstration Project
Grid Connection Date: December 2025
Location: Inner Mongolia Autonomous Region
Owner: Baotou Tuyou Banner Bosi New Energy Technology Co., Ltd. (a wholly owned subsidiary of HyperStrong)
Energy Storage Technology: Lithium Iron Phosphate (LFP) Batteries
Storage Capacity: 500MW/3,000MWh
Located in Tumed Right Banner, Baotou, Inner Mongolia, the project is currently China's largest independent grid-side energy storage demonstration project.
Serving as a flagship project for China's new power system development, it also plays a vital role in facilitating renewable energy integration across western Inner Mongolia while strengthening regional grid stability and flexibility.
14
World's Largest Single-Site Electrochemical Energy Storage Power Station
Envision Chaganhada Energy Storage Power Station
Grid Connection Date: December 2025
Location: Inner Mongolia Autonomous Region
Owner: Envision Group
Energy Storage Technology: Lithium Iron Phosphate (LFP) Batteries
Storage Capacity: 1,000MW/4,000MWh
Located in Bayannur, Inner Mongolia, the project has a total storage capacity of 4GWh, making it the world's largest single-site electrochemical energy storage power station.
The facility is fully equipped with Envision's AI-powered energy storage system, enabling intelligent operation and maintenance while successfully passing the grid's stringent "three-charge, three-discharge" commissioning test on its first attempt.
15
China's Largest Standalone New-type Energy Storage Power Station by Single-Site Capacity
Tongliao Hailuo 500MW/2,000MWh Standalone Energy Storage Power Station
Grid Connection Date: November 2025
Location: Inner Mongolia Autonomous Region
Owner: Tongliao Conch New Energy Co., Ltd. (a wholly owned subsidiary of Anhui Conch Group)
Energy Storage Technology: Lithium Iron Phosphate (LFP) Batteries
Storage Capacity: 500MW/2,000MWh
Located in Naiman Banner, Tongliao, Inner Mongolia, the project was developed by Tongliao Conch New Energy Co., Ltd.
The station adopts CATL's 5MWh battery energy storage system and, at the time of commissioning, became China's largest standalone new-type energy storage power station by single-site capacity.
16
China's Largest Semi-solid-state Lithium Battery Energy Storage Project
Wuhai 200MW/800MWh Semi-solid-state Energy Storage Power Station
Grid Connection Date: November 2025
Location: Inner Mongolia Autonomous Region
Owner: China Green Development Investment Group
Energy Storage Technology: Semi-solid-state Lithium Iron Phosphate Batteries
Storage Capacity: 200MW/800MWh
With a total investment of approximately RMB 600 million, the project is the first utility-scale energy storage project in Inner Mongolia to deploy semi-solid-state LFP battery technology.
Occupying approximately 100 mu (about 6.7 hectares), the facility comprises 160 battery containers and 40 integrated PCS and step-up transformer units, providing valuable engineering validation for the commercialization of next-generation battery technologies.
A review of China's landmark energy storage projects commissioned in recent years clearly demonstrates that the industry has entered a new stage of development. Rather than relying solely on expanding lithium battery deployment, China's energy storage market is rapidly evolving toward technology diversification, complementary short- and long-duration storage solutions, and full-spectrum applications spanning the generation, grid, and demand sides.
Emerging technologies—including long-duration energy storage, solid-state batteries, hybrid energy storage systems, intelligent aggregation, and cloud-based dispatch—are continuously advancing from engineering demonstrations to large-scale commercial deployment. At the same time, integrated energy solutions combining multiple renewable resources and storage technologies are becoming increasingly common across utility-scale, grid-side, and customer-side applications.
Driven by supportive policies, growing market demand, and sustained investment, China's energy storage industry is expected to continue overcoming technological and commercial barriers. The sector is steadily building a multi-level, diversified, and highly efficient energy storage ecosystem, accelerating the industrialization of advanced storage technologies while providing critical support for the country's energy transition and the development of a modern power system.