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Description

The BR-261 Outdoor All-in-One Energy Storage System is a high-performance 100kW / 261kWh commercial and industrial (C&I) energy storage solution. The system integrates battery packs, Energy Management System (EMS), Power Conversion System (PCS), and Battery Management System (BMS) into a single outdoor cabinet.

Designed for industrial parks, commercial buildings, factories, data centers, solar + storage projects, and microgrids, BR-261 helps users reduce electricity costs, improve energy efficiency, and participate in demand response and power market trading.

100KW261KWHLiquid-Cooled Energy Storage Cabinet

Key Advantages & Features

All-in-One Integrated & Intelligent Design

  • Highly integrated cabinet with EMS + PCS + BMS

  • Modular architecture supporting flexible expansion and parallel operation

  • Redundant auxiliary power supply for enhanced reliability

  • Cloud-edge collaboration for real-time monitoring, data analysis, and fault warning

  • Simplified installation and reduced operation & maintenance costs

Advanced Liquid Cooling Temperature Control

  • Intelligent liquid cooling system for stable thermal management

  • Maximum battery temperature ≤ 38°C under full load

  • Cell temperature difference ≤ 3°C

  • Built-in low-temperature heating function for cold-climate operation

  • Significantly extends LFP battery cycle life and improves system consistency

Multi-Level Safety & High Reliability

  • Battery safety: Lithium Iron Phosphate (LFP) cells with intrinsic safety

  • Fire protection: Aerosol fire suppression at both battery-pack and system levels

  • Electrical protection:

    • AC side Level-2 lightning protection with fault alarm

    • Leakage current detection and protection

  • Structural safety:

    • Explosion-proof cabinet design

    • 50 mm fire-resistant rock wool insulation

    • ≥1-hour fire resistance

High Protection for Outdoor Installation

  • Protection rating: IP55

  • Corrosion resistance: C4

  • Suitable for direct outdoor ground installation

  • Reliable operation in high-temperature, high-humidity, and dusty environments

Technical Specifications

System Parameters

  • Model: BR-261

  • Rated Output Power: 100 kW

  • System Capacity: 261 kWh

  • AC Voltage / Frequency: 380 / 400 Vac, 50 / 60 Hz (Three-phase, five-wire)

  • Battery Voltage Range: 650 ~ 949 V

  • Maximum Round-Trip Efficiency: ≥98.2%

  • Dimensions (W × D × H): 1100 × 1400 × 2380 mm

  • Weight: ≤3000 kg

  • Operating Temperature: -20°C ~ 55°C

  • Protection Rating: IP55

PCS Parameters

  • Rated Output Current: 144 A

  • Maximum Parallel Units: 8

  • Power Factor Range: -0.99 ~ +0.99

  • Total Harmonic Distortion (THDi): ≤3%

Battery Parameters

  • Cell Type: Lithium Iron Phosphate (LFP)

  • Cell Specification: 3.2V 314Ah

  • Cycle Life: ≥6000 cycles
    (25°C ±2°C, 0.5C charge/discharge, remaining capacity ≥70%)

  • Operating Temperature:

    • Charging: 0 ~ 55°C

    • Discharging: -20 ~ 55°C

Application Scenarios

Liquid cooling system for 261kWh battery energy storage cabinet

Peak Shaving & Load Management

  • Peak-valley arbitrage

  • Demand charge reduction

  • Lower electricity bills for commercial users

Solar + Storage / Wind + Storage Systems

  • Increase solar self-consumption rate

  • Smooth renewable energy output

  • Improve power quality and grid stability

Microgrids & Off-Grid Power Supply

  • Islands, remote areas, and weak grid regions

  • Core power unit for solar-storage microgrids

  • Backup and emergency power supply

Virtual Capacity Expansion

  • Supplement power during peak loads

  • Delay or avoid costly grid capacity upgrades

Demand Response & Energy Trading

  • Respond to grid dispatch instructions

  • Earn demand response incentives

  • Support participation in electricity markets

Conclusion

The BR-261 100kW 261kWh Outdoor All-in-One Energy Storage System combines high integration, liquid cooling technology, advanced safety protection, and intelligent energy management.

It is an ideal commercial and industrial energy storage solution for reducing energy costs, enhancing renewable energy utilization, and improving power supply reliability in modern energy systems.

FAQ

What is a 100kW/261kWh energy storage system?

The 100kW/261kWh BR-261 is an all-in-one liquid-cooled commercial and industrial (C&I) battery energy storage system. 100kW refers to the system’s maximum continuous output power, while 261kWh is the total usable storage capacity. Compact and plug-and-play, this BESS is ideal for small-to-medium businesses and factories for peak shaving, grid arbitrage, solar PV pairing, and reliable emergency backup power.

What is the difference between 100kW and 261kWh?

The core difference lies in function: kW (power) determines instantaneous output load capacity, while kWh (energy) determines continuous working duration. 100kW is the BR-261’s maximum real-time power output, and 261kWh is its total stored energy. This 100kW/261kWh optimized ratio perfectly fits standard C&I daily charge-discharge cycles and load demands.

Why does the BR-261 use liquid cooling?

The BR-261 adopts liquid cooling to deliver higher safety, stability and durability than traditional air-cooled BESS. It provides precise, uniform cell temperature control, eliminates hotspots, and minimizes battery temperature differences. This advanced thermal design slows capacity decay, extends system lifespan, lowers operating noise and maintenance costs, and ensures stable operation in high-temperature and harsh industrial outdoor environments.

How long does the BR-261 battery last?

Under standard C&I operating conditions, the BR-261 liquid-cooled battery offers 6000+ full charge-discharge cycles with a 10–15 year design lifespan. Its efficient liquid cooling system maintains consistent cell temperature and stable performance, slowing capacity attenuation. It supports frequent daily cyclic operation for peak shaving and solar storage, delivering long-term reliable service for commercial and industrial projects.