ST050-250CF
50~1000 kWh Modular C&I PowerKeeper Series
Flexible and Scalable
The 12.5kWh modular battery design allows flexible system expansion to match growing energy demands. Four modules form a 50kWh stack, with up to five stacks providing 250kWh of storage. An optional long-duration combiner box connects up to four 250kWh clusters, expanding total capacity to 1000kWh with up to 9 hours of storage.
Modular Design
Easy to Expand
50~1000 kWh
Capacity Range
2~8 hours
Storage Duration
Modular Design
Easy to Expand
50~1000 kWh
Capacity Range
2~8 hours
Storage Duration
Fast Deployment
The 50kWh pre-built stack enables rapid, forklift-ready deployment, while 90kg modular battery packs support manual handling and modular expansion or replacement.
Space-Efficient Design
The top heat dissipation design enables side intake and top exhaust, allowing seamless back-to-back stacking. Supports multiple layouts to fit tight spaces and maximize usable area.
Combine Old and New Batteries, Scale at Will
With pack-level balancing technology, the system reaches full energy balance across the entire system within 48 hours, eliminating manual on-site calibration and preventing full battery replacements.
≤48 h Pack-Level Balancing
Safe & Reliable
Pack-level thermal runaway protection, combined with smoke detection and an explosion relief valve, enhances system safety. The enclosure is rated IP66 and C5 for superior environmental protection, with enhanced flood resistance that withstands submersion up to 50 cm for 24 hours. A seamless off-grid transfer time of ≤10 ms ensures uninterrupted power to critical loads during grid outages.
50 cm / 24 h
Flood Resistance
≤10 ms
Off-Grid Transfer Time
IP66, C5
Environmental Protection Rating
Smart O&M
When integrated with SH125CX inverter and Logger, the ST050-250CF supports monitoring through iSolarCloud, providing real-time performance insights and remote management of your PV and energy storage system from anywhere.
Summary
| Specification | Value |
|---|---|
| Capacity | 50~1000 kWh |
| Depth of Discharge (DOD) | 0 - 100% |
| Nominal voltage range | 129.6 - 876 V |
| Nominal charge / discharge rate | 0.5 P |