Suntomine

STM 5 MWh BESS

Our fully integrated 5 MWh STM FEOC-Free BESS is designed for utility-scale performance and grid stability, all with liquid cooling, grid-forming PCS, and plug-and-play deployment in a 20 ft container.

STM 5 MWh BESS

5,015 kWh High-Voltage LiFePO4 Battery System

2,500 kW Grid-Forming PCS

  • FEOC-free Manufacturing
  • Utility-Scale Capacity with 1,500 V Architecture
  • Centralized Smart BMS & EMS Integration
  • Advanced Liquid Cooling & Fire Protection
  • All-In-One Containerized Design — 20 Ft Plug-And-Play Solution With Black Start Capability, Remote Access, and Intelligent Scheduling Optimization

STM 5 MWh BESS

Our fully integrated 5 MWh STM FEOC-Free BESS is designed for utility-scale performance and grid stability, all with liquid cooling, grid-forming PCS, and plug-and-play deployment in a 20 ft container.

STM 5 MWh BESS

5,015 kWh High-Voltage LiFePO4 Battery System

2,500 kW Grid-Forming PCS

  • FEOC-free Manufacturing
  • Utility-Scale Capacity with 1,500 V Architecture
  • Centralized Smart BMS & EMS Integration
  • Advanced Liquid Cooling & Fire Protection
  • All-In-One Containerized Design — 20 Ft Plug-And-Play Solution With Black Start Capability, Remote Access, and Intelligent Scheduling Optimization

More Details

Check out STM 5 MWh BESS’ core specifications.

Batteries

BMS

Cooling & Safety
Protection

PCS

Dimensions

Total Weight

IP Protection

  • 5,015 kWh LiFePO₄ battery with 1,500 V high-voltage architecture
  • Optimized 2 × 6 × 4 × 1 P104S configuration
  • Unified centralized BMS with real-time monitoring
  • Comprehensive protection system with EMS & SCADA
  • High-efficiency liquid cooling system;
  • Integrated aerosol/clean-agent fire suppression with IP54 (container) and IP55 (PCS) protection
  • Supports VSG, PQ, VF modes, grid-forming, and islanding detection
  • Enables FCR/aFRR grid services with up to 99% efficiency and < 3% THDi
  • Dimensions (W × H × D): 6058 × 2438 × 2896 mm (20 ft High Cube container)
  • ~ 44,000 kg
  • IP54

Product Inquiry

Request more information about this product and find out the best way it can fit your needs.

More Details

Check out STM 5 MWh BESS’ core specifications.

Product Inquiry

Request more information about this product and find out the best way it can fit your needs.

Frequently Asked Questions

Have questions about our 5 MWh BESS? Some of these might help you.

The system is ideal for utility-scale energy storage, renewable integration (solar/wind), microgrids, peak shaving, frequency regulation, and backup power applications.

Yes. The 2500 kW PCS supports grid-forming, VSG, PQ, VF modes, islanding detection, and grid services including FCR and aFRR.

The system includes centralized BMS protection (UV, OV, OC, UT, OT, SC), smart liquid cooling, IP54/IP55 protection ratings, and integrated fire suppression using aerosol and clean agents.

The battery container operates from -20°C to 60°C (derating above 45°C), with humidity tolerance up to 85% non-condensing and installation altitude up to 3000 m (PCS up to 4000 m with customization).

Yes. STM 5015 is FEOC-free and certified with UL, MSDS, UN 38.3, and UN 3536 documentation for safe operation and transport.

More Information

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