World's Largest
Single-Stack Rated Power
CE Certification
(EU Compliance)
Annual Electrolyte
Production Capacity
Total Installed Capacity
(incl. projects under construction)
PRODUCTS
We deliver scenario-tailored, large-scale, long-duration energy storage solutions.
STACK
for VRFB
VRFB
System
Electrolyte
All-Vanadium
Safer
The aqueous electrolyte is inherently non-flammable and explosion-proof, eliminating the risk of combustion or explosion.
More Stable
Operates reliably across an ultra-wide temperature range from -20°C to 40°C, with zero capacity degradation over its entire lifecycle.
More Efficient
Achieves a peak efficiency of ≥83%, with an AC-side efficiency of ≥75% for the integrated application system.
Long Lifespan
Features a stack cycle life exceeding 25,000 cycles and an integrated system lifespan of over 20 years.
Consistent
Manufactured on a fully automated, intelligent production line with micron-level process error control, ensuring consistent stack quality.
Easily Adaptable
Supports customized solutions for hydrochloric acid-based, sulfuric acid-based, and mixed acid-based electrolytes.
Highly Integrated
ALL-IN-ONE integrated electrical, capacity, and power modules. Prefabricated design enables fast and easy deployment.
High Performance
Bypass-current suppression reduces parasitic losses, improving system efficiency by ~3% (typical). Integrated system AC-side efficiency ≥ 75%. Design life ≥ 20 years.
Highly Intelligent
Plug-and-play, convenient operation and maintenance.
Highly intelligent control with millisecond-level fault interruption response.
Electrolyte imbalance due to vanadium ion migration can be restored online (capacity recovery).
High energy density
Through the use of specific additives, the stability of VO²+and V³+ions is enhanced, the solubility and stability of vanadium ions are improved, and the energy density of the electrolyte is significantly increased.
Optimize the formula
Through fine-tuning, a balance of electrolyte parameters such as viscosity and density is achieved, ensuring stable battery performance.
Excellent thermal stability
It maintains stable performance across a wide temperature range, helps extend the battery system’s service life, and enhances overall safety.
Concentration customization
The sulfuric acid-based electrolyte is customizable across a concentration range of 1.5–2.5 mol/L, adaptable to any sulfuric acid concentration, ensuring balanced valence state stability.
GLOBAL PROJECTS
ENERFLOW has proven expertise in power station investment, construction, and operation. We have successfully delivered multiple megawatt-scale energy storage projects, with multi-hundred-megawatt facilities currently under construction.The professional operation and maintenance team certified by TÜV ensures the stable operation of the power stations.
Shandong Haihua 1MW/4MWh flow battery energy storage power station project
China's first hydrochloric acid-based vanadium redox flow battery (VRFB) energy storage power station.
CNNC Tancheng City 1MW/4MWh flow battery energy storage power station project
The first (set) of major technical equipment in the energy field in the fourth batch of the National Energy Administration
CHD Laicheng 1MW6MWh Fe-Cr flow energy storage power station project
One of the largest on-site Fe-Cr flow battery power stations in China
SPIC Zhucheng City 1MW/6MWh flow battery energy storage Demonstration project
Modular container solution, smaller footprint
Taierzhuang, Taiyang Palnt Phase II 1MW/2MWh flow battery energy storage power station project
The first 220-kilovolt independent energy storage power station in Zaozhuang City
Shandong Zhaoyang, 100MW/400MWh flow battery energy storage power station project(under construction)
National-Level New Energy Storage Pilot Demonstration Project
ENERFLOW TECHNOLOGY
ENERFLOW Technology is a leading global provider of flow battery energy storage system solutions. We deliver safe, long-duration, sustainable, and cost-effective integrated energy storage solutions for grid-scale, generation-side, and end-user applications. Committed to technological innovation and sustainable development, we actively advance our ESG strategy as a core component of our long-term growth.
New energy industry experience
Patents and certifications
( lnclude in progress )
Annual production capacity
Technology Advantages
All-vanadium Redox Flow Battery :
The optimal technology for long-durational energy storage
Safety
With an aqueous electrolyte, there is no risk of combustion or explosion. Heat buildup is effectively eliminated, enabling simple and reliable thermal management.
Long lifespan
The electrode materials maintain long-term stability, supporting over 25,000 charge-discharge cycles.
Flexible Power /Capacity
Power and capacity are fully decoupled to meet diverse application needs, enabling flexible site selection with no geographical constraints.
Restorable Capacity
Imbalances in electrolyte volume and concentration caused by vanadium ion migration can be fully restored.
Environmentally Friendly
Electrolyte and system materials are 100% recyclable and reusable, with no "three wastes" generated during operation.
Low LCOE
Ideal for medium- to long-duration energy storage (≥4 hours), the system’s unit capital cost decreases as storage duration increases.
GLOBAL
FOOTPRINT
With a comprehensive global green energy deployment strategy, we co-develop solar and wind plus energy storage systems across Europe, Australia, the Middle East, delivering advanced products, integrated system solutions, and long-term value creation for customers worldwide.
Europe
Middle East
Australia
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