When your utility-scale project demands field-proven reliability, comprehensive safety certification, and flexible operation profiles, the USCS-5100 delivers 5.1 MWh of battle-tested energy storage backed by 15 years of Saft’s operational experience across hundreds of global installations.
Empower IT brings you the most operationally-proven utility storage platform available:
The USCS-5100’s sophisticated thermal management and modular architecture support high-performance operation across a wide range of utility applications, from long-duration energy shifting (2–8 hours) for renewable firming to fast-responding grid services like frequency regulation. Engineered for high-intensity use, the system enables mixed operation profiles with up to 300% daily energy throughput without compromising battery longevity. This robust design delivers a consistent 2.5 MW of power across the full state-of-charge (SOC) range and features dual DC outputs, providing a highly flexible configuration that optimizes compatibility with any leading PCS brand.
The USCS-5100 utilizes Lithium Iron Phosphate (LFP) cells, the established utility-scale standard for projects prioritizing long-term safety, bankability, and a 20-year design life. LFP’s inherent thermal stability resists runaway events, a proven safety record that streamlines insurance underwriter approval and project financing. This chemistry offers a predictable, linear degradation curve for high-accuracy financial modeling and boasts a cobalt-free supply chain, eliminating ethical sourcing concerns and ensuring long-term material security.
The USCS-5100’s sophisticated thermal management system utilizes high-efficiency liquid cooling to outperform traditional air-cooled alternatives, maintaining an ideal cell temperature for maximum cycle life. By ensuring homogeneous temperature distribution across all modules, the system eliminates performance-sapping hot spots and supports a low-maintenance design with minimal servicing requirements. This robust architecture enables reliable operation in extreme climates, maintaining full capacity across an ambient range of -30°C to +55°C (with -40°C options available) without performance derating.
The USCS-5100 features a robust fire safety architecture that exceeds utility standards and insurance requirements through a “defense-in-depth” approach. Certified to UL 9540A for non-propagation of thermal runaway, the system is fully compliant with NFPA 855 and NFPA 70E, integrating active and passive ventilation to manage pressure and prevent explosive atmospheres. Its specialized non-propagation design ensures fire containment within a single unit, while enhanced arc flash protection safeguards maintenance personnel. This comprehensive safety suite is managed by a multi-level control system that provides real-time oversight of over-current, over-temperature, and over-voltage parameters, ensuring total asset protection.
Maximize federal tax incentives with US-manufactured content:
Model Number | USCS-5100 |
Rated Energy (C/5) | 5.1 MWh @ 20°C (IEC 62620) |
Battery Chemistry | LFP (Lithium Iron Phosphate) |
Discharge Duration | 2 – 8 hours (flexible configuration) |
Operating Voltage Range | 1160 – 1475 V |
Maximum DC Power | 2.5 MW (charge/discharge) |
Rated Current | 1900 A (charge/discharge) |
Maximum Current | 2100 A (charge/discharge) |
Number of Strings | 6 independent strings |
DC Outputs | Dual outputs per container |
Operating Temperature | -30°C to +55°C (-40°C optional) |
Thermal Management | Advanced liquid cooling system |
Temperature Uniformity | Homogeneous across all modules |
Design Lifetime | ≤ 20 years |
Altitude Rating | ≤ 2000 meters above sea level |
Container Size (L×H×W) | 6.1m × 2.9m × 2.4m (20ft ISO) |
Weight | 43.5 tonnes |
Protection Class | IP55, UL50-3R |
Painting | C5H (high corrosion resistance) |
Noise Level | <75 dBA @ 1m |
Storage Time | Up to 12 months (under specified conditions) |
Storage Temperature | -30°C to +55°C |
Fire Safety Certifications | UL9540A, NFPA 855, NFPA 70E |
Safety Standards | IEC 61619, IEC 62477, UL1973, UL9540 |
BMS Certification | UL60730-1 (Hardware & Software) |
Cybersecurity | IEC 62443-4-2 Level SL-2 |
Marking | CE, UL |
Directives | REACH, EU Battery Regulation |
Manufacturing Standards | ISO 9001, QS 9000, ISO 14000 |
Transport Classification | UN3536 (fully populated and tested) |
Smart-Balancing | Patented automated self-balancing technology |
BMS Architecture | Master + 6 Battery Management Modules |
Digital Platform | I-Sight AI-based supervision and analytics |
System Guarantee | AC system performance and availability by Saft |
US Manufacturing | Jacksonville, FL facility with domestic supply chain |
Warranty | Contact for project-specific terms |
