125kW 261kWh Energy Storage System (125kW Hybrid Inverter)
The 125kW/261kWh liquid-cooled energy storage cabinets combine 125kW hybrid inverters with 261kWh lithium battery capacity for commercial and industrial solar-plus-storage applications. They support direct PV input of up to 240kW, coordinate solar generation, battery charging, and load supply, and help increase on-site solar self-consumption. These ESS cabinets use liquid cooling to keep cell temperature differences within 3°C and support more than 8,000 charge and discharge cycles. Their IP55-rated enclosures also protect the internal electrical and battery components during outdoor operation.
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Intelligent Energy Management
- Dual MPPTs support up to 10 PV input channels, with a maximum conversion efficiency of 97.6%.
- Grid-connected, off-grid, and backup operating modes support smooth power transfer and help maintain continuous supply to critical loads.
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Multi-Level Safety Protection
- These battery storage systems comply with IEC 62619 and UL 9540A safety requirements.
- Aerosol and water-based fire suppression are combined with explosion-relief protection to improve overall ESS safety.
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Smart Monitoring and Maintenance
- Equipped with 7-inch LCD touchscreen to provide local control, while Bluetooth app access supports remote operation and status monitoring.
- CAN, RS-485, and Ethernet interfaces connect the ESS cabinets to cloud platforms for fault alerts, operating data analysis, and energy performance monitoring.
| Parameters | 156 kWh Version | 209 kWh Version | 261 kWh Version |
| Energy Capacity | 156 kWh | 209 kWh | 261 kWh |
| Battery Type | Lithium Iron Phosphate (LFP) | ||
| Cell Capacity | 314 Ah | ||
| Configuration | 1P156S | 1P208S | 1P260S |
| Nominal DC Voltage | 499.2 V | 665.6 V | 832 V |
| Charge/Discharge C-Rate | 0.5C | ||
| Cycle Life | ≥ 6,000 cycles (80% DOD) | ||
| Thermal Management | Liquid Cooling | ||
| Fire Suppression System | Aerosol + Water-based Fire Extinguishing System | ||
| Safety Features | Gas & Water Extinguishing + Ventilation + Explosion Relief Panel | ||
| Communication Interfaces | CAN / Ethernet / RS-485 | ||
| Operating Temperature | -30°C to 50°C (Derating above 45°C) | ||
| Operating Humidity | 0% to 95% (Non-condensing) | ||
| Max. Operating Altitude | ≤ 2000 m | ||
| Weight | < 2,700 kg | 3,500 kg | 4,300 kg |
| Dimensions (W × D × H) | Approx. 989 × 1,465 × 2,471.5 mm | ||
| Ingress Protection (IP) Rating | IP67 (Battery Compartment) / IP54 (Enclosure) | ||
| Corrosion Resistance | C4 (C5 Optional) | ||
| Max. Parallel Connection | Up to 10 units (Grid-tied / Off-grid) | ||
| Certifications and Codes | IEC 62619, IEC 63056, IEC 61000, IEC 62477-1, UN38.3, IEC 60730, UL 9540A | ||
- Battery System:
These ESS cabinets are available with 156kWh, 209kWh, or 261kWh of storage capacity. Each version uses 314Ah lithium iron phosphate cells, with battery configurations of 1P156S, 1P208S, and 1P260S and nominal DC voltages of 499.2V, 665.6V, and 832V. Under an 80% depth of discharge, the batteries are rated for more than 6000 cycles.
- Hybrid Inverter:
The integrated 125kW high-voltage hybrid inverter manages power flow between the PV array, battery system, and utility grid across grid-connected, off-grid, and hybrid operating modes. Direct connection of up to 240kW of PV capacity helps increase on-site solar use and reduce electricity drawn from the grid.
- Temperature Control System:
Liquid cooling keeps the temperature difference between battery cells within 3°C, which helps reduce thermal stress and supports a cycle life of more than 6,000 cycles. It also keeps the ESS cabinet stable in ambient temperatures from -30°C to 50°C.
- Energy Management and Safety:
The integrated EMS uses a 7-inch touchscreen to manage solar generation, battery charging, and grid power. CAN, Ethernet, and RS-485 interfaces connect the cabinets to external monitoring and control platforms. Gas and water-based fire suppression, ventilation, and explosion-relief panels provide additional protection.
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High-Voltage Box -
Liquid Cooling Unit -
Smoke and Heat Detection Alarm Unit
- C&I Solar Energy Storage
Suitable for factories, industrial parks, and commercial buildings that need to combine solar generation, peak shaving, and backup power in one energy system.
- Microgrid and Off-Grid Power Supply
ESS cabinets can work as a main energy storage unit in microgrids and provide stable power for islands, mining sites, and other remote locations with limited grid access.
- Solar-Storage EV Charging Stations
When paired with PV systems and fast chargers, ESS cabinets help reduce sudden demand on the grid and improve the use of on-site solar power.
- Grid Support Services
Used for demand response and frequency regulation to support grid operation and create additional revenue.
| PCS Model | Rated AC Power | Compatible Battery Capacity | Max. PV Input Power | No. of MPPTs | Ingress Protection (IP) Rating |
| S6-EH3P(75)K10-NV-YD-H | 75 kW | 156 kWh | 150 kW | 10 | IP66 |
| S6-EH3P(80)K10-NV-YD-H | 80 kW | 156 / 209 kWh | 160 kW | 10 | IP66 |
| S6-EH3P(100)K10-NV-YD-H | 100 kW | 209 kWh | 200 kW | 10 | IP66 |
| S6-EH3P(125)K10-NV-YD-H | 125 kW | 261 kWh | 240 kW | 10 | IP66 |
