A semi-solid-state lithium battery energy storage project in Wuhai, Inner Mongolia, successfully connected to the grid, generating 189 million kilowatt-hours annually

At 21:59 on November 30, 2025, with a clear command from shift supervisor Liu Jiahao, the Wuhai 200,000 kW/800,000 kW semi-solid-state energy storage power station—China's largest grid-side independent new energy storage project using semi-solid-state lithium iron phosphate batteries—successfully connected to the grid. Invested and constructed by China Green Development Investment Group Co., Ltd., the project covers approximately 100 acres and has a total investment of 600 million yuan. It is the first large-scale energy storage project in Inner Mongolia Autonomous Region to adopt semi-solid-state lithium iron phosphate battery technology.

This "super power bank" features 160 energy storage battery compartments and 40 integrated converter and booster compartments. Through peak-shaving regulation, it can deliver 189 million kilowatt-hours of clean electricity to the grid annually. Based on typical household electricity standards, a single maximum discharge of 800,000 kilowatt-hours can simultaneously meet the electricity needs of approximately 4,000 households for one month.

Inner Mongolia Wuhai Semi-Solid-State Lithium Battery Energy Storage Project

Inner Mongolia Wuhai Semi-Solid-State Lithium Battery Energy Storage Project

1. Technical Features

The Wuhai project utilizes domestically developed semi-solid-state lithium iron phosphate battery technology, boasting the following core advantages:

High Safety: Through a solid-liquid hybrid electrolyte design, it maintains the high ion conductivity of liquid batteries while effectively suppressing lithium dendrite growth, significantly improving safety.

Long Cycle Life: Cycle life exceeds 12,000 cycles, reducing the total lifecycle cost by approximately 40% compared to traditional energy storage technologies.

High Energy Density: Energy density is 25% higher than traditional lithium batteries, with charge/discharge efficiency exceeding 92%.

Environmental Adaptability: Equipped with an intelligent temperature control system, it can operate stably in extreme environments ranging from -40℃ to 60℃, making it particularly suitable for the large diurnal temperature range characteristic of Northwest China.

Modular Design: The system offers flexible capacity expansion, allowing for rapid adjustment of energy storage configuration according to grid demand, providing a replicable technical solution for renewable energy integration.

2. Project Significance

As a crucial hub in the Inner Mongolia West Power Grid, the integration of this energy storage power station into the Wuhai power grid is equivalent to installing a "resilient buffer," playing a vital role in the following aspects:

Enhancing Power System Stability: Addressing the challenges posed by the large-scale convergence of new energy sources in Wuhai and surrounding areas, thereby improving the stability of the regional power system.

Improving Clean Energy Utilization: Through a flexible operation mode of "daytime energy storage and nighttime peak shaving," ensuring that local green electricity can be generated, transmitted stably, and utilized effectively, removing key bottlenecks in the regional new energy consumption.

Promoting Technology Commercialization: Marking a critical stage in China's semi-solid-state energy storage technology, moving from demonstration applications to large-scale commercial operation.

Demonstration Effect: As the first commercial semi-solid-state energy storage power station in Northwest China, its operational data will provide important reference for the industry in formulating technical standards.

3. Industry Evaluation

The photovoltaic industry and energy storage experts have given the project high praise:

Liu Xiaofei, Assistant General Manager of China Green Energy Development Co., Ltd. Inner Mongolia Branch, stated: "High safety, long endurance, and high energy density are the project's three core advantages. The successful grid connection will enhance the stability of the power system and the capacity for renewable energy absorption, providing key support and a demonstration model for the autonomous region's construction of a new 'source-grid-load-storage integrated' power system."

Industry experts pointed out that semi-solid-state battery technology integrates the mature processes of liquid batteries with the safety characteristics of solid-state batteries and is considered a core direction for next-generation energy storage technology. The large-scale application of the Wuhai project has verified the feasibility of this technology from the laboratory to commercialization.

Previously, the largest semi-solid-state energy storage project connected to the grid in China had a scale of 100 MW/200 MW, while the Wuhai project doubled that, indicating that China is at the forefront globally in the large-scale application of semi-solid-state energy storage technology.

4. Future Outlook

With the accelerated upgrading of the new energy industry, energy storage technology, as a core support for grid peak shaving and frequency regulation and improving the capacity for green electricity absorption, is ushering in a breakthrough in large-scale application. Semi-solid-state lithium battery technology is one of the key directions for the future development of power and energy storage batteries.

Wuhai, Inner Mongolia, as an important new energy base in Northwest China, has been continuously promoting the integrated construction of "source-grid-load-storage" since 2025, relying on its abundant wind and solar energy resources. The energy storage project connected to the grid this time is a core hub project of the local new energy consumption system, and will play an important role in building a new power system and achieving "dual-carbon" goals.


For more information on photovoltaic solar technology, please click : https://bricesolar.com/blog

Comments

Post a Comment

Popular posts from this blog

Let BIPV become the building's power station--analysis of photovoltaic building integration technology

Image
As the global energy crisis and environmental pollution become more and more serious, the combination of green building and renewable energy has become a new trend in the construction industry. Building Integrated Photovoltaic (BIPV), as an emerging sustainable technology and a model for integrating clean energy and building design, is bringing innovative energy solutions to buildings. By integrating solar photovoltaic (PV) systems into the building structure, BIPV not only provides an efficient way of utilizing energy, but also helps buildings to achieve energy self-sufficiency and contribute to environmental protection.Brice Solar will provide an in-depth analysis of the prospects, advantages and successful cases of the application of PV building integration technology, and help you to understand how BIPV can become a “power station” for the future of buildings. “Power Station”. 1、What is BIPV (Building Integrated Photovoltaic)? BIPV (Building Integrated Photovoltaics)  is a tech...
Read more

What are the successful cases of combining PV and energy storage in China and overseas?

Image
Example of combining photovoltaic and energy storage system Against the backdrop of accelerated transformation of the global energy structure, the deep integration of PV and energy storage systems is becoming an important force in promoting energy transformation. Photovoltaic power generation is intermittent and unstable, and the introduction of energy storage technology effectively improves its power utilization efficiency and power supply stability, especially in peak shaving and valley filling, micro-grids, autonomous energy supply and other scenarios play a huge role. Chinese PV companies have built a series of benchmark PV+storage integration projects at home and abroad by virtue of their technological accumulation and globalization layout, and Brice Solar will take a look at some representative PV+storage success stories from both Chinese and overseas perspectives, showing the latest trends and practical achievements of the industry. Cases of combining PV and energy storage in Ch...
Read more

How to create a high value green building with light-transmitting photovoltaic glass combined with BIPV?

Image
Driven by the global carbon neutrality target, the construction industry is accelerating its transition to green and low-carbon, and green building has become the future development direction of the construction industry. Among them, Building Integrated Photovoltaic (BIPV), as an innovative program combining construction and new energy, is gradually becoming an industry hotspot. Although traditional photovoltaic panels can generate electricity, they are difficult to integrate with the aesthetics of architectural design due to their bulky appearance and poor light transmittance. Especially with the application of light-transmitting photovoltaic glass, light-transmitting photovoltaic glass, as an important part of BIPV, not only possesses the function of generating electricity, but also has the advantages of light harvesting, heat insulation, and aesthetics, which endows the modern buildings with a higher environmental value and a sense of science and technology. Technical Analysis of Li...
Read more