Full Breakdown
China Launches Large-Scale Semi-Solid-State Battery Energy Storage Project
12/2/2025, 2:15:04 AM
Successful Grid Connection of Wuhai Energy Storage Station
On November 30, 2025, China Green Development Group successfully connected its semi-solid-state battery energy storage power station to the grid in Wuhai, Inner Mongolia. This facility, with a capacity of 200 MW and 800 MWh, represents the first large-scale commercial application of semi-solid-state battery technology in the country. The project was completed at 21:59 on the same day, marking a significant milestone in China's energy storage capabilities.
Project Specifications and Technology
The Wuhai energy storage project occupies approximately 100 mu and is equipped with 160 energy storage system (ESS) battery cabins and 40 integrated converter and step-up cabins. The semi-solid-state lithium iron phosphate (LFP) batteries utilized in this project were developed by Qingtao Energy, which boasts a cycle life of up to 12,000 cycles due to its innovative solid-liquid hybrid electrolyte technology. Liu Xiaofei, Assistant General Manager of China Green Development Group's Inner Mongolia Branch, stated that the project is expected to deliver approximately 189 million kWh of clean electricity to the grid annually, providing essential peak shaving and frequency regulation capabilities.
Economic and Environmental Impact
The project is anticipated to generate stable revenue through a capacity compensation mechanism established by the autonomous regional government, which sets a compensation standard of 0.35 yuan per kWh for a period of ten years. This financial framework is expected to bolster investments in energy storage systems across the region. As of the first half of 2025, Inner Mongolia had achieved a total new-type energy storage capacity of 11.08 million kW, making it the first province in China to surpass the 10 million kW threshold.
Background and Development Timeline
The Wuhai ESS project has undergone several key phases since its inception. The groundbreaking ceremony took place on June 26, 2025, followed by the announcement of bidding candidates for the procurement of ESS equipment on August 22, 2025. Qingtao Energy won the bid with a proposal of 440 million yuan, equivalent to 0.55 yuan per watt-hour. The project was officially completed and connected to the grid on November 30, 2025.
Future Prospects for Solid-State Battery Production
Qingtao (Wuhai) Energy Technology Co., Ltd., established in November 2023, is set to play a crucial role in the solid-state battery industry. The company plans to invest approximately 5 billion yuan in a comprehensive project that includes the production of 50,000 metric tons of dedicated materials for solid-state batteries and 10 GWh of solid-state batteries and energy storage systems. By 2030, Wuhai aims to achieve a production capacity of 200,000 metric tons for solid-state battery materials and 30 GWh for solid-state batteries.
Criticism and Opposition
While the project has been celebrated for its technological advancements and economic potential, some critics express concerns regarding the environmental impact of large-scale battery production and the sustainability of the materials used. These perspectives highlight the need for ongoing assessments of the ecological footprint associated with the burgeoning solid-state battery industry.
Verbatim Quotes
- “Liu Xiaofei, Assistant General Manager of China Green Development Group's Inner Mongolia Branch: The project provides peak shaving and frequency regulation capabilities with a power of 200 MW and a capacity of 800 MWh, delivering 189 million kWh of clean electricity to the grid annually.” — Liu Xiaofei, Assistant General Manager, China Green Development Group
- “Qin Lei, Project Manager of the Wuhai ESS Project at China Green Development Group's Inner Mongolia Branch: The project adopts semi-solid-state LFP battery technology independently developed by Qingtao Energy.” — Qin Lei, Project Manager, Wuhai ESS Project
This development in Wuhai signifies a pivotal step in China's transition towards sustainable energy solutions, showcasing the potential of semi-solid-state battery technology in meeting future energy demands.
