In the realm of large-scale solar energy storage, 5MWh battery compartments stand as a testament to technological innovation, offering robust storage capabilities tailored for diverse climatic conditions. This article delves into the specific technical parameters of Yijia Solar’s 5MWh battery compartments, showcasing how these BESS containers (Battery Energy Storage System containers) deliver reliable, efficient, and scalable energy solutions for solar power projects worldwide.
System Architecture and Capacity
Each 5MWh battery compartment is engineered with a modular design, comprising 12 battery clusters, each housing 4 liquid-cooled PACKs arranged in a 1P104S configuration. This structure results in a total energy storage capacity of 5015.9616kWh at 25°C under 0.5C rated conditions, with a nominal voltage of 1331.2V and a working voltage range of 1164.8–1497.6V. The system supports sustainable charging and discharging power of 2507kW, with a DC-side conversion efficiency exceeding 93% .
Cell and Pack Parameters
The compartment utilizes 314Ah lithium iron phosphate (LFP) cells, each with a nominal voltage of 3.2V and a working voltage range of 2.8–3.6V. These cells demonstrate remarkable temperature resilience, operating during charging at 0–60°C and discharging at -20–60°C .
Each battery pack (HV332.8/314) within the compartment features:
- Nominal voltage: 332.8V
- Capacity: 314Ah
- Energy: 104.4992kWh
- Charge/discharge rate: 0.5C
- Working voltage range: 291.2–374.4V
Cluster and High-Voltage Box Specifications
A battery cluster integrates 4 packs and a dual-in-one high-voltage box, delivering:
- Total voltage: 1331.2V
- Capacity: 314Ah
- Energy: 417.9968kWh
- Dimensions: 900mm×2200mm×2758mm
The high-voltage box, designed to support two clusters, includes:
- 250A DC1500V circuit breakers
- 350A DC1500V DC contactors
- 200W/50Ω pre-charge resistors
- 350A DC1500V fuses
- Support for battery cluster voltage ≤1500V and maximum current ≤250A
Liquid Cooling System
The compartment employs a 60kW liquid cooling unit with:
- Refrigerant: R410A
- Coolant: 50% ethylene glycol aqueous solution
- Circulating water flow: 500L/min
- Noise level: <85dB
- Dimensions: 1200×440×2400mm
- Weight: 462kg
This system maintains cell temperature within a tight range, ensuring optimal performance in extreme climates, from -30°C in mountainous regions to +50°C in desert zones.
Fire Protection Technology
The fire safety system features a dual-layer strategy:
- PACK-level detection with thermal runaway protection
- Cluster-level solenoid valves for targeted fire suppression
- (compartment-level) fire detection and full (flooding) fire extinguishing using perfluorohexanone
- Total agent (dosage): 52kg, designed for an 8% fire suppression concentration in a 32.6m³ protected volume
Yijia Solar’s BMS employs a three-tier architecture with key technical metrics:
- Temperature measurement accuracy: ±2°C
- SOC estimation accuracy: <8%
- Single-cell voltage measurement accuracy: ≤±0.3%
- Operating temperature range: -40°C to +85°C
- Communication interfaces: CAN/RS485/Ethernet
- Protection functions: Overvoltage, undervoltage, overcurrent, overheating, and insulation monitoring
The system ensures real-time monitoring of over 4,000 cells per compartment, with fault recording and predictive maintenance capabilities to enhance operational reliability.
Desert Environment Deployment
In a Middle Eastern solar farm, a 15MWh system (3×5MWh compartments) demonstrated:
- Anti-dust coatings and sealed cooling loops to withstand 50°C heat and sandstorms
- 90% reduction in diesel generator usage through smart energy management
Coastal Resilience
A typhoon-prone coastal project utilized 10MWh of containerized storage with:
- Corrosion-resistant aluminum frames
- Salt-air filtration systems
- Hybrid inverters for seamless grid-battery switching, maintaining hospital operations during outages
High-Altitude Performance
In a Central Asian mining camp, a 5MWh compartment featured:
- Cold-temperature batteries operational at -20°C
- 5,400Pa snow load resistance
- Remote BMS monitoring for proactive maintenance in rugged terrain
Technical Excellence
- Modular design enabling easy scalability from 5MWh to 100MWh+
- 25-year panel warranty and 10-year battery warranty
- Compliance with international standards: GB/T 36276-2018, IEC 62133, and T/CEC 373-2020
End-to-End Support
- Free site assessment and 3D system modeling
- Customized solutions for regional climate challenges
- Access to [Yijia Solar’s case studies] showcasing real-world performance
Ready to Explore 5MWh Battery Compartment Solutions?
Discover how Yijia Solar’s 5MWh battery compartments in BESS containers can transform your solar energy storage strategy:
1. Explore Product Details: Visit [Yijia Solar’s website] for comprehensive technical datasheets.
2. Request a Consultation: Connect with our energy experts for a personalized system design.
3. View Performance Reports: Access case studies on energy storage projects in diverse environments.
Harness the power of reliable, high-capacity energy storage—contact us today to start your journey toward sustainable energy solutions.
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