July 26, 2025– Rongke Power, a global leader in vanadium flow battery energy storage solutions, has successfully completed grid connection and commissioning of the Hami SDIC ESS, a 100MW/400MWh standalone vanadium flow battery energy storage system located in northwest China. This project marks the first commercial-scale deployment of its kind in the region and sets a new benchmark for large-scale, long-duration energy storage supporting renewable integration and grid flexibility.
This milestone underscores Rongke Power’s leadership in advancing long-duration energy storage that enables reliable and safe renewable energy utilization, particularly in remote and resource-rich areas.
Advancing Renewable Integration with VFB Technology
The Hami SDIC ESS utilizes an advanced “PV + Storage” hybrid configuration, designed to store excess solar power generated during midday and discharge it during peak demand periods in the morning and evening. Early estimates project an increase in renewable energy utilization by up to 15% annually.
“The core value of this project lies in solving the intermittency challenge of solar and wind generation,” said Li Ming Kang, Station Director. “Vanadium flow battery system provides stable grid support, fast frequency response, and critical reliability for renewable power dispatching.”
By addressing the intermittency challenge and enhancing grid response capabilities, the project establishes a scalable model for future hybrid renewable-storage deployments across the region.
Breakthrough in High-Performance VFB Technology
The Hami SDIC ESS system is engineered with industry-leading VFB technology that delivers:
- High energy conversion efficiency (>83%)
- Wide temperature range performance (-35°C to 40°C)
- Real-time system health diagnostics with 99.5% fault prediction accuracy
- Inherent safety and full recyclability for sustainable utility-scale use
“Vanadium flow batteries are inherently safe, long-lasting, and fully recyclable—making them the most sustainable choice for utility-scale applications,” said Gao Sujun, Project Lead at Rongke Power. “The economic and operational value of long-duration energy storage is now clearly visible.”
Industrial Execution with Speed and Scale
The entire project—from contract signing to delivery—was completed in under three and a half months, a record-setting timeline for vanadium flow battery deployments.
This was made possible by Rongke Power’s:
- Gigafactory-scale production capacity
- Integrated electrolyte and system manufacturing infrastructure
- Dedicated execution team of 30+ engineers and project managers
The storage station operates independently and includes a 110kV step-up substation that connects directly to the main grid. This not only enhances local renewable consumption but also strengthens the transmission of clean power to broader regions—advancing national carbon reduction targets.
A Strategic Hub for Long-Duration Energy Storage
As a pivotal node in the national renewable energy transmission network, the northwest region of China holds vast solar and wind resources. This project demonstrates the viability of “renewables + long-duration energy storage” as a critical architecture for regional decarbonization and national grid modernization.
Rongke Power’s continued innovation and execution in the VFB sector are enabling the transition from pilot applications to scalable deployments—paving the way for a global shift toward resilient and clean energy infrastructure.
About Rongke Power
Founded in 2008, Rongke Power is a global leader in vanadium flow battery (VFB) manufacturing and energy storage solutions. With over 500 patents and more than 3.5 GWh of installed capacity worldwide, Rongke Power enables critical grid services, renewable integration, and decarbonization strategies across the globe. The company operates the world’s first digital VFB Gigafactory and the world’s largest vanadium electrolyte production facility.
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