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.
What applications is the STM 5015 suitable for?
The system is ideal for utility-scale energy storage, renewable integration (solar/wind), microgrids, peak shaving, frequency regulation, and backup power applications.
Does the STM 5015 support grid-forming operation?
Yes. The 2500 kW PCS supports grid-forming, VSG, PQ, VF modes, islanding detection, and grid services including FCR and aFRR.
What safety features are included in the STM 5015?
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.
What are the environmental operating limits of the the STM 5015?
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).
Is the the STM 5015 compliant with international transport and safety standards?
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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