Standardized Stacks
The stack is the core component of the flow battery energy storage system. It is the place where electrochemical reactions of the electrolyte occur to achieve charging and discharging, and it determines the power of the energy storage system. Because the flow battery stores the electrolyte outside the reaction stack, it has the characteristic of power-capacity decoupling: the stack determines the power of the battery, and the amount of electrolyte determines the capacity of the battery. Relying on the founder's more than ten years of industrialization experience in the American flow battery industry, ZH Energy has developed and produced stacks with an internationally leading level, providing strong technical support for the product to achieve a stable and efficient operation with a service life of 20 years.Standard stack models: 5kW, 16kW, 32kW, 42kW. With UL1973 and IEC62932 certifications, they comply with grid-connected standards in most countries worldwide.
• High performance: The flow channel has been fully optimized and verified through engineering. With a power density of 200mW/cm², the energy efficiency is > 80%.
• Good consistency: Produced on a mechanized production line, the standardized production process has obtained the ISO9001 international Quality Management System certification.
• Excellent appearance design: The components are exquisitely designed, the assembly process is stable, and the end plate spray painting can be customized, making it suitable for showcase.
Flow Battery Management System (FBMS)
Conventional BMS solutions designed for lithium-ion batteries are not suitable for flow battery systems due to fundamental differences in control strategies and operating principles. Leveraging over a decade of flow battery industrialization experience in the U.S., ZH Energy has developed a dedicated FBMS tailored for flow battery applications. It enables real-time monitoring and intelligent control of key operating parameters, optimizing system performance, preventing overcharge and over-discharge, improving efficiency, and extending system lifetime.
• Comprehensive Functionality: All-in-one monitoring, calculation, and control for flow battery systems.
• Easy Operation: Integrated touchscreen operation with seamless EMS communication.
• Flexible Application: Compatible with various flow battery technologies with customizable system settings.
• High Scalability: Proprietary technology enabling flexible customization and future expansion.
Energy Storage Systems
Since its invention in 1985 and commercialization around 2005, the vanadium redox flow battery (VRFB) has undergone nearly four decades of refinement and is now the most mature and commercially proven flow-battery technology. Leveraging over a decade of industrial experience in the U.S. flow-battery sector, ZH Energy has developed VRFB systems that meet international leading standards, delivering stable, high-efficiency operation for 20 years with more than 20,000 charge–discharge cycles—well aligned with long-duration renewable-energy storage requirements. Standardized energy storage systems of 250 kW and 375 kW are available. They can operate standalone or be connected in series and parallel to build large-scale energy storage stations.
• Intrinsic Safety：Water-based vanadium electrolyte prevents fire, explosion and thermal runaway, ideal for indoor storage and densely populated industrial & commercial areas.
• 20+ Year Service Life：Electrolyte stays chemically stable without degradation. System lifespan matches renewable assets and cuts replacement costs.
• Decoupled Power & Capacity：Flexibly tune power-energy ratios; expand capacity anytime by adding electrolyte or stacks for growing load demands.
• Long-Duration Output & Dual Benefits：Supports 4–8 hour continuous discharge for peak shaving. Deliver revenue from energy arbitrage and lower demand charges.
