Infypower IEB350: C&I Liquid-Cooled All-in-One BESS
January 13, 2026
With the rapid growth of distributed photovoltaics, electric vehicle charging loads, and overall power demand, the power system is undergoing unprecedented structural changes. Infrastructure now faces new challenges in supply-demand balance, operational stability, and economic efficiency.
A key operational issue is the increasing mismatch between power generation and consumption—both in timing and scale—which limits the integration of renewable energy and constrains user-side efficiency improvements. Battery Energy Storage Systems (BESS) serve as a vital regulatory resource connecting generation, grid, and load, playing an irreplaceable role in balancing supply and demand while enhancing system flexibility. Deploying BESS has become essential for achieving efficient energy utilization, ensuring grid security, and optimizing user-side energy management.
At the same time, declining PV costs and shrinking subsidies are accelerating the need to store both existing and newly installed solar generation, shifting value creation from feed-in to self-consumption and flexibility—further reinforcing the role of BESS. As a result, BESS is evolving from a supportive asset into a core infrastructure component, enabling distributed energy systems to operate more independently and efficiently.
BESS applications are generally categorized into three segments: generation-side, grid-side, and user-side. Commercial and industrial (C&I) energy storage, as a typical user-side solution, primarily serves industrial parks, high-load enterprises, zero-carbon campuses, and transformer-level applications. Located close to distributed PV and electrical loads, it enables localized generation-consumption coordination, improving renewable utilization and reducing transmission losses. It delivers value through peak shaving, grid response, dynamic capacity expansion, and emergency backup.
Infypower specializes in power electronics, focusing on customer-centric solutions. By integrating self-developed Battery Pack, PCS, EMS, and BMS into a unified system, Infypower delivers end-to-end efficiency, system-level intelligence, and comprehensive protection. The company has introduced the IEB series of all-in-one liquid-cooled energy storage systems tailored for commercial and industrial use.
The IEB350 is a 350kWh BESS designed specifically for C&I applications. It adopts a fully liquid-cooled, integrated architecture with electrical isolation, ensuring high safety and reliability. The system supports high-power 1P charge/discharge, making it ideal for high-demand electricity scenarios.
In such demanding applications, system safety is paramount. Infypower’s IEB350 is engineered with multi-layered, proactive protection to ensure operational security and reliability under the most challenging conditions.
1. Multi-Layer Safety Protection A four-tier fire safety design ensures reliable operation:
Level 1: High-performance battery cells with BMS real-time monitoring and early warning.
Level 2: Thermal runaway management detecting smoke, temperature, and gas with precise alerts.
Level 3: Full-submersion aerosol fire suppression for timely response.
Level 4: Pressure relief design compliant with UL 9540A and NFPA 68 to minimize deflagration impact.
The system also implements four-level overcurrent protection across the battery pack, DC circuit, converter, and AC circuit, enabling rapid, graded shutdown to reduce fault losses.
2. Flexible Configurations and Use Cases
PV + Storage Off-Grid Solution: Provides reliable power for remote areas. PV powers loads first, excess charges batteries, and storage supplies power when PV is insufficient—reducing diesel use and enhancing reliability.
PV + Storage + Diesel Hybrid Micro grid: Suitable for medium-scale demand in weak-grid areas. Prioritizes PV, then storage, with diesel as backup, ensuring continuous supply while lowering fuel dependence and operation noise.
Diesel-Storage Hybrid for Weak Grids: ESS responds to load changes, allowing diesel genets to run optimally, improving efficiency and reducing wear.
Critical Backup Power: Auto-switches to off-grid during outages, supporting black start for uninterrupted supply in events, factories, or capacity expansion scenarios.
3. Excellent User Experience
End-to-End Services: Global team supports pre-sales to after-sales with rapid response.
One-Stop Solutions: All core components (PACK, BMS, EMS, PCS) developed in-house, compatible with PV and diesel gensets for multi-scenario use.
Intelligent Management Platform: Self-developed platform enables quick commissioning and efficient operation, offers API for third-party integration, and deploys local servers worldwide for data security and compliance.
Amid the accelerating energy transition and the upgrading of power systems, Infypower remains committed to providing safe, efficient, and flexible battery energy storage solutions to global customers through innovative technologies and reliable products, contributing to a cleaner, more stable, and smarter energy future.
#BESS #energy storage # PV + Storage Off-Grid Solution
