4.6 MWh Containerized Battery Energy Storage System
The 4.6 MWh Containerized Energy Storage System is a high-capacity, all-in-one power solution designed for large-scale renewable integration, peak load management, and reliable backup power. It integrates battery packs, PCS, EMS, thermal management, and fire protection within a single container to deliver efficient, stable, and safe energy storage. Its highly integrated architecture reduces system complexity, accelerates project deployment, and ensures long-term operational reliability for utility-scale and commercial energy systems.
Optimized for Your Energy Needs
Ensure Continuous Operations
High-capacity energy storage maintains stable power for facilities and projects during peak demand or outages, minimizing downtime and operational risk.
Maximize Energy Efficiency
Advanced power conversion technology increases usable energy and reduces transmission losses, improving overall system efficiency and lowering operational costs.
Adapt Easily to Grid Changes
Seamless on-grid/off-grid transition and flexible control enable stable integration with renewable sources, supporting reliable and resilient power supply.
Secure, Continuous Performance
Multi-layer protection combined with intelligent monitoring reduces maintenance requirements and prevents system interruptions, ensuring long-term operational stability.
Specification
Basic Parameter
|
Item
|
Parameter
|
|
Single Cell
|
3.2v 314ah LFP
|
|
Cell series & parallel
|
11P416S
|
|
Nominal voltage
|
1331.2v
|
|
Nominal capacity
|
3454ah
|
|
Storage energy
|
4.597mwh
|
|
Voltage range
|
1164.8-1497.6vdc
|
|
Rated charging current
|
1800a
|
|
Rated discharging current
|
1800a
|
|
Operating temperature
|
-20℃~55℃
|
|
Auxiliary power supply
|
176-264vac
|
|
Weight
|
around 35000kg
|
|
Size (W*D*H)
|
6058*2600*2896mm
|
Cell Parameter
| Item | Parameter |
|
Nominal voltage
|
3.2v
|
|
Voltage range
|
2.8-3.6v
|
|
Capacity
|
314ah
|
|
Internal resistance
|
0.17±0.05mΩ
|
|
Storage temperature
|
-30℃~60℃
|
|
Cycles
|
≥6000
|
|
Cell weight
|
around 5.34kg
|
|
Cell size (W*D*H)
|
174*207*72mm
|
Module Parameter
|
Item
|
Parameter
|
|
Cell series & parallel
|
1P52S
|
|
Nominal voltage
|
166.4v
|
|
Voltage range
|
145.6-187.2v
|
|
Storage energy
|
52.249kwh@0.5C
|
|
Operate temperature
|
-20℃~55℃
|
|
Module weight
|
around 330kg
|
|
Module size(W*D*H)
|
810*1172*245mm
|
Certified to IEC, UL, and CE standards, every system ensures safe, reliable, and worry-free operation backed by proven engineering.
Product Overview
The CBESS4600 is a 4.6MWH Battery Energy Storage System designed for grid-scale energy management and renewable energy integration. Through three-level topology technology and liquid cooling thermal management, it achieves 99% energy conversion efficiency and extended cycle life.
High Efficiency
Three-level topology design delivers 99% system efficiency
Extended Lifespan
LFP cells provide ≥6000 cycles with 15-20 year expected service life
Rapid Response
Charge/discharge mode switching <50 milliseconds for frequency regulation
Fast ROI
Commercial/industrial applications achieve payback in just 18-24 months
System Architecture
EMS Energy Management Platform Communication Network
Communication Network PCS Power Conversion System
PCS Power Conversion System Battery Storage Unit
Battery Storage Unit Grid/Load Output
Key Functional Modules
Advanced technology components working together to deliver superior performance and reliability
Bidirectional Energy Conversion
In grid-connected mode, the PCS receives EMS commands and, combined with battery status, absorbs or releases active power through the grid to manage battery charging and discharging. Supports multiple charging/discharging methods including constant current, constant voltage with current limiting, and constant power. Real-time BMS status monitoring ensures battery safety.
Business Value
Solves renewable energy intermittency issues, achieving peak shaving and valley filling to reduce electricity costs by 30%.
Intelligent Thermal Management System
Liquid cooling plates make direct contact with battery cells through thermal conductive layers. Coolant continuously circulates under water pump power, removing battery heat. The thermal control system maintains cell temperature differential ≤3°C, ensuring battery consistency and longevity.
Business Value
Extends battery lifespan by over 20%, reducing thermal runaway risk.
Virtual Synchronous Generator (VSG)
Simulates traditional synchronous generator characteristics, participating in primary/secondary grid frequency regulation to maintain grid stability. Supports rapid online switching between PQ (Power Control), VF (Voltage-Frequency Control), and VSG modes.
Business Value
Generates frequency regulation ancillary service revenue with annualized returns of 15-25%.
Multi-Level Safety Protection
Integrated three-level detection for temperature/smoke/combustible gas, equipped with perfluorohexanone automatic fire suppression system. When two detection signals trigger simultaneously, the system automatically cuts power, closes ventilation, and initiates fire suppression within 90 seconds.
Business Value
Complies with UL9540A standards, ensuring asset safety and insurance compliance.
Application Scenarios
Versatile energy storage solutions for diverse industry needs and applications
Renewable Energy Grid Integration
Pairs with wind/solar power plants to store excess electricity and output during generation valleys, smoothing power fluctuations.
Grid Frequency Regulation
Participates in electricity spot market AGC frequency regulation services, adjusting charge/discharge power at millisecond level.
Commercial & Industrial Peak Shaving
Installed at industrial parks/commercial complexes, charging during off-peak periods and discharging during peak periods.
Microgrid & Off-Grid Power
Provides off-grid or isolated grid power supply for islands/remote mining areas/data centers.
Deployment & Maintenance
Comprehensive guidelines for installation, connection, and ongoing system maintenance
Installation Method Comparison
Complete Container Deployment
Rapid deployment solution
Advantages
Factory pre-assembled and fully commissioned before delivery, enabling quick on-site installation with minimal wiring and setup.
Suitable Scenarios
Utility-scale projects or commercial sites with sufficient crane capacity and flat foundation.
Installation Time: 2-3 days
Parallel Container Deployment
Scalable capacity solution
Advantages
Multiple 4.6 MWh containers can be paralleled to expand system capacity. Each operates independently or under unified control, allowing phased investment and flexible expansion.
Suitable Scenarios
Large-scale energy storage stations, industrial parks, or renewable integration projects.
Installation Time: 5-7 days (per additional container)
Foundation Installation
Stable and durable solution
Advantages
Mounted on reinforced concrete or steel platforms to ensure stability, load-bearing strength, and water protection for long-term reliable operation.
Suitable Scenarios
Permanent installations or regions with challenging ground conditions.
Installation Time: 3-4 days
Network & Electrical Planning
Electrical Connection Requirements
Grid connection point: 10kV or 35kV busbar, requires 2500kVA isolation transformer
Land area: Single system requires 80-100 square meters (including safety distance)
Foundation bearing: Concrete foundation load capacity ≥8 tons/square meter
Cable specifications: DC side 400mm² copper core cable, AC side 300mm²
Communication bandwidth: 100Mbps fiber optic or 4G/5G wireless communication
Fire Protection & Safety
Fire suppression: Equipped with 150kg perfluorohexanone automatic fire suppression device
Gas alarm threshold: Combustible gas concentration alarm threshold: 25% LEL
Detection system: Smoke/temperature dual detection, threshold 75°C
Ventilation rate: Emergency ventilation rate: 15 air changes/hour
Safety distance: ≥5 meters from other buildings
Maintenance Schedule
| Frequency | Tasks | Duration | Responsibility |
|---|---|---|---|
| Daily | Remote monitoring data inspection, alarm handling | ~15 minutes | On-site operator |
| Weekly | Visual inspection of modules and cooling systems | ~30 minutes | Maintenance technician |
| Monthly | Bolt tightening check, insulation testing | ~2–3 hours | Maintenance technician |
| Quarterly | Battery equalization, sensor calibration, filter replacement | ~1/2 day | Service engineer |
| Annually | Comprehensive electrical testing, coolant replacement, firmware upgrade | 1–2 days | Manufacturer's service team |
Maintenance Benefits
Preventative Care
Helps reduce unexpected downtime through regular maintenance
Optimal Performance
Maintains high operational efficiency throughout system lifecycle
Warranty Compliance
Ensures full warranty coverage for 5 years
Competitive Advantages
How CBESS4600 outperforms traditional and competing energy storage solutions
vs Traditional Lead-Acid Battery Storage
| Dimension | CBESS4600 (LFP) | Lead-Acid Battery Solution | Advantage |
|---|---|---|---|
| Cycle Life | 4000-6000 cycles | 300-500 cycles | 10x Longer |
| System Efficiency | ≥90% (AC-AC) | 85-90% | Higher Efficiency |
| Volumetric Energy Density | ≈145 Wh/L | 60-80Wh/L | 2x Higher |
| Maintenance Workload | Quarterly simple inspection | Monthly water addition/equalization | 75% Less |
| Environmental Friendliness | No heavy metal pollution | Lead-containing waste liquid disposal | Environmentally Safe |
| Temperature Adaptability | -20~55°C | 10~35°C optimal | Wider Operating Range |
| Lifetime Levelized Cost |
|
|
|
CBESS4600 Unique Advantages
Higher Power Density
0.54MW/MWH ratio, exceeds industry average 0.4-0.5 level, 2C rate charge/discharge capability meets high-frequency regulation scenarios.
Three-Level Topology
99% conversion efficiency leads two-level solution's 97%, reducing annual energy loss and lowering electricity costs.
Modular Expansion
Supports up to 4 systems in parallel to 18.4 MWh/10 MW, software online upgrades require no hardware modifications, significantly reducing expansion costs.
Advanced Fire Suppression
Perfluorohexanone system with ODP=0 (zero ozone depletion), GWP<1, superior electrical insulation performance.
5-Year Warranty
Comprehensive 5-year warranty with guaranteed < 20% capacity degradation ensures reliable long-term operation and reduced maintenance risk.
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