In December 2025, two large-scale grid-side independent energy storage projects supported by Beijing KeRui were successfully connected to the grid in Inner Mongolia and put into operation: the 500 MW / 2,000 MWh Gushanliang project in Ordos and the 400 MW / 2,400 MWh Bu’erhantu project in Baotou.
Leveraging outstanding engineering execution capabilities, Beijing KeRui’s service team completed the entire process from installation to power delivery in just 50 days—an industry miracle that provided strong assurance for the high-quality and rapid commissioning of both projects. With a combined capacity of 4.8 GWh, the two projects set a new benchmark for the development of China’s independent energy storage sector in terms of large scale, high quality, and accelerated delivery. They inject strong momentum into regional energy structure transformation and provide critical support for building a stable and reliable new-type power system.
In these two flagship projects, Beijing KeRui’s integrated energy storage power conversion and step-up units served as the primary AC-side equipment and played a central role in successful commissioning. Several innovative technologies proved critical to project delivery:
Energy-Efficiency-Oriented Intelligent Thermal Management
The system adopts an innovative multi-tier thermal management strategy centered on “on-demand activation and load matching.” By dynamically aligning transformer cooling requirements with fan operating conditions, the design achieves optimal coordination between auxiliary power consumption and heat dissipation efficiency, significantly reducing unnecessary energy use. In addition, an intelligent heat-exchange buffering design adjusts fresh-air temperature seasonally—mitigating cold shock in winter to protect equipment and pre-cooling intake air in summer to enhance heat dissipation—thereby ensuring long-term stable operation while further refining overall energy efficiency.
Reinforced Structural Design with Integrated Drainage
Through optimization of the converter platform layout, the system enhances overall structural strength while naturally forming efficient drainage channels. This eliminates the need for additional drainage components, achieving dual functionality within a single structure and balancing structural safety with environmental adaptability. The design reflects a philosophy of simplicity, reliability, and efficiency.
Verified Transport Reliability
The equipment underwent rigorous transportation testing, including over 3,000 kilometers of highway transport and 450 kilometers of reinforced standard-condition road testing. These trials fully validated the system’s ability to withstand complex overland transportation challenges, ensuring structural integrity and stable performance throughout delivery and meeting the stringent requirements of real-world engineering logistics.
One notable highlight of the projects is the application of HyperStrong’s flagship large-capacity liquid-cooled energy storage system, representing the latest advancements in electrochemical energy storage technology. HyperStrong’s independently developed second-generation power conversion system (PCS) features advanced technology with fully independent and controllable core technologies. It can accurately respond to grid dispatch requirements and, through customized design, adapts effectively to complex operating conditions to ensure safe and stable year-round operation. This PCS has been successfully integrated into Beijing KeRui’s integrated unit solution.
Another key highlight is the adoption of CATL’s advanced 587 Ah energy storage cells, which achieve an energy density of 434 Wh/L, a cycle efficiency of up to 96.5%, and further optimized cycle life and degradation performance. This marks the first time Beijing KeRui’s integrated power conversion and step-up system has been deployed in combination with this cell model, demonstrating the company’s rapid response capability in adopting cutting-edge technologies and integrating high-performance components. Beijing KeRui’s integrated design deeply combines core modules—including the power conversion system, step-up transformer, power distribution switchgear, intelligent control, fire protection and security, and thermal management—into a single solution. Through optimized structural topology and layered spatial design, the capacity of a single box-type dry transformer can be increased to over 8,250 kVA, unlocking substantial energy output within limited space. This approach reduces land-use costs while enabling flexible deployment across diverse application scenarios.
The commissioning of the two energy storage power stations will significantly enhance the Inner Mongolia power grid’s ability to accommodate variable renewable energy sources such as wind and photovoltaic power. The projects will effectively smooth peak–valley load differences, improve grid flexibility, and strengthen overall system security and stability. Looking ahead, leveraging the comprehensive advantages of its integrated energy storage power conversion and step-up units—spanning energy efficiency, structural optimization, reliability, and adaptability—Beijing KeRui will continue to provide high-performance, high-reliability energy storage system solutions. The company aims to help customers achieve lower operating costs, higher full life-cycle discharge returns, and improved investment performance.
As an active participant and key driver in the development of new-type power systems, Beijing KeRui remains committed to advancing clean and low-carbon energy transition through technological innovation and superior service, contributing to a safer, more efficient, and greener modern energy system.
Register now to attend Asia’s Largest Energy Storage Trade Show for free:
What: The 14th Energy Storage International Conference & Expo
When: Conferences: March 31 - April 2, 2026
Exhibitions: April 1-3, 2026
Where: CIECC Beijing, China
Address: No. 55 Yudong road, Shunyi District, Beijing China
