GREENWATT 125kw energy storage system (ESS) integrates lithium battery banks , a battery management system (BMS), power conversion system (PCS), and energy management software to optimize energy use. Designed for scalability and efficiency, it features modular architecture, high power density, and advanced safety protocols. This system reduces energy costs by storing off-peak electricity or excess solar power for on-demand use, while supporting grid stability and renewable integration. It also serves as backup power during outages and enables participation in demand response programs, enhancing sustainability and operational resilience for businesses.
Model :
GW125K-257HType :
Hybrid TypeMax. Output Power :
125KWAC Output Voltage :
380V/400V, 50/60HzWarranty :
10 YearsCertificate :
CE/ISOKey Features:
• Supports PV input up to 200% of the inverter's rated DC power, maximising solar utilisation
• Supports up to 21A PV input current, compatible with the latest high-power PV modules
• Compatible with 100-314Ah battery cells, helping reduce energy storage system costs
• Supports battery charge/discharge current up to 200A, ideal for peak-valley arbitrage and frequency regulation applications
• Two independent battery connections, allowing more flexible system configuration
• AI-Powered & VPP-Ready - maximise savings, unlock additional income
• 7-inch industrial-grade screen, providing a larger, user-friendly interface for local operation
• Supports DC and AC coupling for PV, allowing flexible system expansion and retrofitting
• Smart port enables multiple energy source inputs, including grid-tied inverters, diesel generators, and wind turbines
• Supports up to 10 units in parallel. For systems with more than 6 units, use of a Solis power distribution cabinet is recommended
System Parameter
| MODEL | GW125K-257H |
| Battery System Data | |
| Cell type | Prismatic LFP |
| Cell brand | REPT |
| Celle life cycle | >6,500 cycles@0.5C,25°C |
| Cell spec | 3.2V/314Ah |
| String configuration | 1P224S |
| Number of strings | 5 |
| String rated energy capacity | 257kWh |
| DC rated energy capacity | 257KWH |
| Rated AC voltage | 409.6V |
| Voltage range | 352V~467.2V |
| BMS communication interface | Ethernet, CAN, RS485 |
| BMS communication protocol | Modbus RTU, Modbus TCP |
| AC Data | |
| Rated AC power | 125kW |
| Maximum AC power | 125kVA |
| Rated AC vokage | 380/400/415V |
| AC PF | 1 leading ~ 1 lagging |
| Output THDi | ≤3% |
| Nominal grid frequency | 50/60Hz |
| Isolation method | 3 Phase 4 Line Transformer |
| Inverter Data | |
| Dimension w/o clearances (L*W*H) | 1174*814*400mm |
| Weight | 170KG |
| Degree of protection | IP66 |
| Operating temperature range | -25~60°C |
| Relative humidity | 0~100% (non-condensing) |
| Max working altitude | 4,000m |
| Cooling concept of PCS hatch | Smart Air Cooling |
| Warranty | 5 Years (10 years optional) |
| Communication interfaces | RS485, Ethernet, GPRS |
| Display | 7.0" LCD display & Bluetooth + APP |
| * In case of changes in product dimensions and parameters, the latest information from our company shall prevail without prior notice. | |
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