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All-In-One Off-Grid New Energy Storage Cabinet

All-In-One Off-Grid New Energy Storage Cabinet

Off-Grid Energy-Storage

Choose the PXU-C Energy Storage System –Make every kilowatt count.
With its fully integrated design, the system saves valuable space and ensures fast, plug-and-play deployment.

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Rising energy bills? Unstable power supply?
Every unexpected outage or peak-hour surcharge silently eats into your profit margins.
Choose the PXU-C Energy Storage System –Make every kilowatt count.
With its fully integrated design, the system saves valuable space and ensures fast, plug-and-play deployment.


Brand & Competitive Advantages

Ultra-Fast Switching

Transfers between grid and off-grid modes within 20 ms, ensuring uninterrupted power supply for critical loads.

 

High Conversion Efficiency

PCS efficiency up to 98% reduces loss and maximizes usable energy.

 

All-in-One Hybrid Cabinet

Integrates battery, PCS, EMS, TMS and distribution in one unit for plug-and-play deployment.

 

Four-Layer Safety Architecture

Cell → Module → Rack → System multi-level protection ensures full safety.

 

Hybrid Energy Management

Coordinates PV, DG and Grid sources for best economic output.


Technical Specifications

Item Specification
Model PXU-C
Battery Type CATL 306 Ah LiFePO₄ (LFP) Battery Cells
Rated AC Power 50 kW (Three-phase AC 400 V ± 15%)
Voltage Range DC 728 – 936 V / AC 400 V ± 15%
Peak Efficiency ≥ 98% (PCS Conversion Efficiency)
Cooling Method Natural Cooling (Fanless Air-Fin Design)
Operating Temp. −25°C ~ +55°C (derating > 45°C)
Protection Level System IP54 / Battery Module IP67
Parallel Units Up to 6 AC parallel (10 max expandable)
Certifications EN 50549-1/10, IEC 62619, IEC 61000, UN 38.3, UL 9540A
Dimension ≈ 1500 mm × 1200 mm × 2000 mm (H×W×D)
Weight ≈ 1.8T

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Frequently
Asked Questions

  • What is an Energy Storage System (ESS)?

    An Energy Storage System (ESS) is a technology or set of technologies designed to capture, store, and release electrical energy (or energy in other forms that can be converted to electricity) on demand. Its core purpose is to address the temporal and spatial mismatches between energy supply and demand—for example, storing excess energy generated during low-demand periods (e.g., midday solar production) and releasing it during high-demand periods (e.g., evening peak usage) or when supply is limited (e.g., nighttime wind lulls).

  • What are the core functions of ESS?

    ESS solves critical challenges in modern energy systems by performing five key roles:
    Peak Shaving: Reduces reliance on expensive "peak power plants" (which only operate during high-demand hours) by releasing stored energy during peak periods. This lowers electricity costs for users and grid stress. 
    Load Leveling: Smooths out fluctuations in energy supply (e.g., variable output from solar/wind) by absorbing excess energy when production is high and discharging when production drops. 
    Backup Power: Provides emergency electricity during grid outages (e.g., residential battery systems for blackouts, hospital backup ESS). 
    Grid Stabilization: Maintains grid reliability by regulating frequency (frequency response) and voltage—critical for integrating high shares of renewable energy, which can cause sudden supply swings. 
    Renewable Integration: Enables more solar and wind power to be used (instead of wasted, or "curtailed") by storing surplus energy that would otherwise exceed immediate demand.

  • What’s the Core Components of ESS?

    Battery Cells and Modules: The main energy storage units, typically based on lithium-ion chemistries such as LFP for safety and longevity.
    Battery Management System (BMS): Ensures balanced voltage and temperature across cells for optimal safety. 
    Power Conversion System (PCS/Inverter): Converts energy between DC and AC for smooth integration with loads or grids. 
    Energy Management System (EMS): Acts as the “brain” — optimizing operation, predicting consumption, and maximizing ROI. 
    Thermal & Fire-Safety Systems: Maintain safe temperature levels and comply with UL/IEC standards.

  • How Energy Storage Systems Work?

    Charging: Energy source (grid/photovoltaic/wind power) → AC → PCS (rectification) → DC → energy storage medium (storage)
    Control: EMS (decision-making)+BMS (protection) → full process linkage PCS/energy storage medium
    Discharge: energy storage medium (release) → DC → PCS (inverter) → AC → energy destination (grid/load/emergency)
    Guarantee: Auxiliary system (cooling/fire protection) → Full process safety guarantee
    Core closed-loop: AC ↔ PCS ↔ Energy storage medium ↔ PCS ↔ AC (EMS/BMS+auxiliary system escort)

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