ESS-GRID FlexiO Series
Designed to simplify commercial energy storage, this integrated system combines battery, power conversion, and intelligent control technologies into a reliable solution for efficient energy management.
Power Your Business with BSL ESS-GRID Cabinet
An all-in-one industrial battery storage solution designed for flexibility, reliability, and intelligence. It integrates advanced LFP technology with smart energy management and offers four capacity options based on different cell compositions, including 200kWh, 215kWh, 225kWh, and 241kWh, enabling seamless installation, scalable expansion, and efficient operation across diverse industrial and commercial applications.
Extended Lifespan
Built with A+ LiFePO4 cells offering over 6,000 cycles and a lifespan of more than 10 years. Each unit uses 280Ah / 314Ah high-capacity cells with system efficiency above 95%, providing 200–241kWh capacity options for stable long-term energy output.
Integrated System
Combines battery modules, PCS, EMS, and BMS in one cabinet for true plug-and-play installation. Supports multi-cabinet parallel connection for easy expansion and can include PV charging modules or off-grid switches for flexible energy solutions.
Intelligent Control
Features a local display with 3D visual monitoring, showing real-time operating status of each module. Enables remote upgrades and energy strategy management, with RS485, CAN, and Ethernet interfaces for full intelligent operation.
Global Certification
Complies with IEC62619, IEC62477, IEC61000, and IEC62116 standards, ensuring electrical safety, electromagnetic compatibility, and reliable grid connection across global markets.
Efficient PV Integration
Supports 1000V PV input with 3 MPPT channels and a voltage range of 250–620V. Provides 100kW / 125kW AC output with THD <3% and adjustable power factor to achieve high-efficiency solar energy utilization.
Reliable Protection
Equipped with three-level fire protection at pack, module, and cabinet levels. The battery and electrical compartments are independently sealed, with IP55 protection and reliable operation from ↳-25°C to 60°C, ensuring safe outdoor performance.
AC Expansion
Supports flexible AC-side expansion through parallel connection of multiple cabinets, allowing a single system to scale beyond 1MW/4MWh. Standardized plug-and-play interfaces enable easy integration of 100kW/125kW units in mixed parallel, with maximum AC current up to 199A and voltage compatible with 400Vac/230Vac (3W+N+PE or 3W+PE). The intelligent EMS coordinates charging and discharging across units, maintaining system efficiency >95%, total harmonic distortion <3%, and adjustable power factor from 1 leading to 1 lagging. Ideal for hotels, schools, and communities, this solution enables gradual capacity growth, peak-shaving, and grid-interactive control.
DC Expansion
Supports high-efficiency DC coupling with direct PV integration, achieving system efficiency >97%. Maximum PV input voltage is 1000V, with 3 MPPT channels each covering 250–620V, supporting up to 125kW of PV power. DC coupling reduces conversion losses, while the battery side operates at 716.8V/768V with maximum charge/discharge current of 157A, allowing flexible configuration with different DC-side devices such as inverters or DC loads. This solution is ideal for solar parks, farms, and other applications requiring high self-consumption, reducing energy losses and operational costs.
Smarter Energy Storage Starts with a High Voltage Stackable System
Compartmentalized Safety Design
The battery cabinet features a separated layout for the battery pack and electrical unit, enhancing overall safety and reducing risks associated with energy storage operation.
Three-Level Fire Protection
Equipped with PACK-level, group-level, and dual-compartment fire safety, the system combines active and passive fire protection technologies to ensure reliable safety in commercial and industrial energy storage applications.
High-Capacity LFP Cells
Using 314Ah and 280Ah lithium iron phosphate cells, the cabinet achieves high energy density and efficiency. Each module delivers 16kWh capacity with patented CCS technology, ensuring energy efficiency above 95% while maintaining stable long-term performance.
See inside the performance of ESS-GRID Cabinet Series
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