When your utility-scale project demands the fastest deployment, simplest installation, and most flexible configuration, the USCS-4200 delivers a complete all-in-one energy storage system in a single 40-foot container with integrated PCS, EMS, cooling, and fire protection.
Empower IT brings you the most deployment-ready utility storage solution available
The USCS-4200 supports multiple power/duration configurations from a single platform.
The USCS-4200 employs a sophisticated, multi-tiered fire safety strategy that integrates active suppression at both the module and container levels. This system features integrated fire alarm control with smoke and explosive gas monitoring, triggering automatic DC circuit isolation and active pressure relief via emergency ventilation. For maximum site safety, the architecture includes independent whole-container suppression and dry piping for water-based intervention, ensuring comprehensive protection across the entire energy storage system.
This dual cooling architecture ensures peak performance and longevity through high-precision thermal management. By combining liquid cooling for uniform cell temperature with dedicated HVAC for the battery compartment and forced convection for the power electronics, the system maintains industry-leading 3°C temperature control. This robust design enables reliable all-climate operation across a wide ambient range of -20°C to +50°C (-4°F to 122°F).
Engineered for extreme utility environments, this unit features IEEE 693-2018 rated seismic foundation brackets and an IP54/NEMA Type 3X enclosure for robust environmental protection. It is optimized for coastal and residential deployment, utilizing C4/C5 corrosion-resistant coatings and advanced noise suppression that maintains levels below 70 dB(A) at 5 meters.
| Model Number | USCS-4200 |
| Usable Energy | 3.887 MWh (at 25°C, AC side) |
| Energy Capacity (DC) | 4.180 MWh DC (314 Ah × 3.14V × 214Ah cells) |
| Configuration | 2.09 MW / 4.180 MWh (2 hr) or 1.075 MVA / 1.075 MWh (4 hr) |
| Discharge/Charge Duration | 2-8 hours (flexible configuration) |
| Inverter Size (2hr) | 2.15 MVA (2 hr) | 1.075 MVA (4 hr) |
| Inverter Size (4hr) | 1.075 MVA / 1.075 MWh (4 hr) |
| Grid Voltage | 690 VAC, 3-Phase Delta |
| Grid Frequency | 50 Hz or 60 Hz |
| Round-Trip Efficiency | 86-88% (AC Bus, Beginning of Life, 25°C) |
| Aux Power Consumption | 27 kW (Peak), 20 kW (Avg.), 5 kW (Idle) – 2 hr |
| Aux Power Factor | 0.7 |
| External Aux Transformer | 55 kVA Internal Aux Transformer (optional) |
| Ambient Temperature | -20°C to +50°C (+4°F to +122°F) |
| Altitude | De-rated over 3,000 meters |
| Thermal Management | Battery: Liquid Cooling | Battery Compartment: HVAC | Inverter: Forced Convection |
| Relative Humidity | 10%-95% (non-condensing) |
| Dimensions (L×W×H) | 10.08m × 2.44m × 2.94m (33.07ft × 8.01ft × 9.65ft) |
| Weight | ~44,920 kg (99,031 lbs) |
| Design Life | 20 years |
| Ingress Rating | IP54 (NEMA Type 3X equivalent) |
| Seismic Rating | Foundation Brackets: IEEE 693-2018 All Seismic Zones |
| Fire Protection | Fire Alarm Control Panel, Fire and Smoke Detector, Explosive Gas Detection |
| Fire Suppression | Active Ventilation, Dry Piping for Water, SPD, AC and DC Circuit Breakers |
| Noise Emission | <70 dB(A) at 5 meter |
| Certifications | UL 9540, UL 9540A, UL 1973, UL 1741, IEEE 1547, IEC 62477, RoHS, REACH, GB/T 36276, EN 50549 |
| Communication | Protocols: Modbus TCP, DNP3, OPC UA, REST API, Interfaces: RTU/RTAC |
| Plant Controller | Energy Management System for Both Local and Cloud-Based |
| Warranty | 10 years standard (extended available) |
