522kWh / 250kW Commercial BESS Cabinet

Designed for Mega-Scale Commercial & Industrial (C&I) applications, this system integrates a massive 522kWh LiFePO4 battery bank with a powerful 250kW bi-directional grid-tie inverter (PCS) in a single, robust enclosure.

Unlike smaller models, this unit features intelligent liquid cooling to ensure extreme longevity under high C-rate operation and offers seamless 2-way switching (<20ms) between Grid and Off-grid modes. It also includes a dedicated port for hybrid operation with Diesel Generators, making it the perfect heart of any modern microgrid.

2. Key Features 

• Massive Capacity: 522kWh usable energy in a single cabinet (628Ah @ 832Vdc), reducing the number of cabinets needed for large sites.

  
  

• High Power Output: 250kW continuous AC output, capable of supporting large motor startups and high-load machinery.

  
  

• Premium Liquid Cooling: Equipped with intelligent liquid cooling for the battery system (PCS uses smart air cooling), ensuring <3°C cell temperature uniformity and extending cycle life beyond 6,000+ cycles even under heavy cycling.

  
  

• Dual MPPT PV Input: Two independent MPPT trackers supporting a total of 240kWp PV input. Perfect for large rooftop solar farms or ground-mount arrays.

  
  

• Seamless Off-Grid Switching: Industry-leading <20ms transfer time. Powers critical equipment without interruption during grid blackouts.

  
  

• Hybrid Ready (DG Port): Compatible with Diesel Generators via a dedicated connection port, allowing for hybrid power solutions in remote areas.

  
  

• Heavy-Duty Protection: IP65 rating on the battery section (dust-tight and waterproof), suitable for outdoor harsh environments.

  
  

3. Technical Specifications

4. Application Scenarios 

• Large Manufacturing Plants: Full-facility peak shaving and backup power for entire factory floors.

  
  

• Microgrid Solutions: Integration of Solar + Storage + Diesel Generator for island or remote mining sites.

  
  

• EV Charging Hubs: Large buffer storage to stabilize the grid impact of high-speed DC fast charging stations.

  
  

• Utility Scale Front-of-Meter: Behind-the-meter solutions for small utilities or large community energy management.