When your utility-scale energy storage project demands the highest energy density, proven reliability, and industry-leading safety, the USCS-6300 delivers 6.261 MWh in a standard 20-foot container footprint—20% more energy than competing 5 MWh systems.
Empower IT brings you the most advanced containerized energy storage solution available.
The USCS-6300 leverages cutting-edge active balancing to maximize system performance, recovering 5–8% more usable capacity compared to traditional passive systems. By ensuring uniform cell charging and reducing internal stress, this technology extends battery cycle life by 20–30% while maintaining superior round-trip efficiency (86–88% RTE) at beginning-of-life. Unlike systems that degrade rapidly, this active architecture continually optimizes energy distribution as the system ages, ensuring high performance and capacity retention throughout its entire operational lifespan.
This is the engine that powers remote gold mines in Alaska, emergency facilities for major cities, 100MW utility plants in the Middle East, and critical infrastructure across six continents. Over 1,000 MW of installed Progen capacity worldwide proves what happens when American engineering meets real-world demands.
The USCS-6300’s centralized liquid cooling system utilizes multi-stage shunt control and parallel flow channels to achieve exceptional thermal precision, maintaining an industry-leading 3°C temperature variance across the entire 6.3 MWh container. This architecture ensures cell-level consistency within 2°C, employing a dynamic throttling control system to adjust cooling in real-time for optimal operating conditions. Additionally, integrated heating allows the system to maintain full performance in extreme environments, supporting operation down to -30°C without derating.
The USCS-6300 employs comprehensive safety measures at every level:
The USCS-6300 supports multiple configurations for project-specific requirements
| Model Number | USCS-6300 |
| Rated Energy | 6261.9 kWh (100% DOD, 0.25P) |
| Configuration | 416S12P (EFS314 cells) |
| Rated Voltage | 1331.2 V |
| Operating Voltage Range | 1040V – 1500V |
| Continuous Power (2hr) | 1565.5 kW charge/discharge |
| Peak Power (60s) | 3131 kW (2× overload) |
| Continuous Power (4hr) | 1565.5 kW charge/discharge |
| Peak Discharge Power | 3131 kW @ 60s |
| DC Output Configuration | 1, 2, or 12 outputs (configurable) |
| Withstand Voltage | 4500 VDC, leakage current ≤5mA |
| Operating Temperature | -30°C to +55°C |
| De-rated Altitude | Over 3,000 meters |
| Thermal Management | Liquid cooling/heating (centralized system) |
| Temperature Control Precision | Container: ±3°C | Cell: ±2°C |
| Round-Trip Efficiency | 86-88% (AC bus, 25°C, Beginning of Life) |
| IP Rating | IP55 (container) |
| Seismic Rating | IEEE693 High-Level Compliance |
| Mass | ~49 tonnes |
| Dimensions | 6058mm × 2438mm × 2896mm (L×W×H, 20HQ) |
| Fire Suppression | Aerosol + Water (dual-layer system) |
| Certifications | UL9540A, UN38.3, RoHS, GB/T36276, NFPA68, NFPA855, IEEE Std 693-2018 |
| Communication Protocols | CAN, RS485, TCP/IP (Modbus RTU/TCP) |
| Auxiliary Power | 400Vac 50Hz or 480Vac 60Hz (3-phase) |
| Design Life | 20 years |
| Warranty | 10 years standard (extended available) |