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BWSESS250KS
Brightway Solar
The 250KW/500KW & 250KWH/500kWh-1.2MWH outdoor 20ft container ESS is tailored for large-scale commercial and industrial energy storage. Its DC side features BYD's vehicle-grade modular lithium iron phosphate batteries with original BMS protection, while the AC side incorporates Brightway Solar's hybrid solar inverter. Leveraging EMS operation strategy, it seamlessly interfaces with the grid, offering reliable power backup during outages. The built-in EMS supports various modes like self-consumption, peak shaving, TOU, and battery priority, meeting diverse energy management needs.
Technical Specifications
| Model | BWSESS250KS | |
| DC(battery) | ||
| Battery capacity (MWh) | 250KWH/500KWH | |
| Battery Module | BYD 25.6V190AH/280AH/300AH optional | |
| Battery Type | Lithium-iron phosphate (LiFePO4) battery | |
| BMS communication interface | RS485/CAN | |
| Battery Voltage range (V) | 420V-850V | |
| Max. Current (A) | 673A | |
| DC(PV) | ||
| Max.PV input voltage(V) | 1000VDC | |
| Max.PV power(KW) | 300/360KW | |
| MPPT voltage range(V) | 200VDC-850VDC | |
| MPPT voltage range@full load (V) | 450VDC-850VDC | |
| AC(on-grid) | ||
| Max output power(kVA) | 275KVA | |
| Rate output power(kW) | 250KW | |
| Rated voltage(V) | 400V | |
| Voltage range(V) | 320V-460V | |
| Rated current(A) | 361A | |
| Max. output current(A) | 397A | |
| Rated frequency (Hz) | 50/60Hz | |
| Frequency range (Hz) | 45-55/55-65Hz | |
| THDI | <3% | |
| Power factor | 1lagging-1leading（Settable） | |
| AC connection | 3W+N+PE | |
| AC(off grid) | ||
| Rated voltage(V) | 400V | |
| THDU | ＜1% Linear ＜5% Nonlinear | |
| Rated frequency(Hz) | 50/60Hz | |
| Overload capacity | 110% long-term | |
| General data | ||
| Max.efficiency | 97.30% | |
| Ingress protection | IP54 | |
| Fire extinguishing system | support | |
| Operating temperature | －30～+55℃ | |
| PCS cooling way | Temperature control intelligent air cooling | |
| Battery cooling way | Air conditioning cooling | |
| Relative humidity | 0 ~95% non-condensing | |
| Altitude | 4500m(>3000m Derating) | |
| Dimension D*W*H (mm) | 6058*2438*2896mm | |
| Weight(kg) | Customized | |
| Transformer ratio | 270/400 | |
| On/ Off grid switching | Automatic | |
| Display and communication | ||
| Display | LCD touch-screen | |
| BMS communication | RS485/CAN | |
| EMS communication | RS485，TCP/IP | |
The 250KW/500KW & 250KWH/500kWh-1.2MWH outdoor 20ft container ESS is tailored for large-scale commercial and industrial energy storage. Its DC side features BYD's vehicle-grade modular lithium iron phosphate batteries with original BMS protection, while the AC side incorporates Brightway Solar's hybrid solar inverter. Leveraging EMS operation strategy, it seamlessly interfaces with the grid, offering reliable power backup during outages. The built-in EMS supports various modes like self-consumption, peak shaving, TOU, and battery priority, meeting diverse energy management needs.
Technical Specifications
| Model | BWSESS250KS | |
| DC(battery) | ||
| Battery capacity (MWh) | 250KWH/500KWH | |
| Battery Module | BYD 25.6V190AH/280AH/300AH optional | |
| Battery Type | Lithium-iron phosphate (LiFePO4) battery | |
| BMS communication interface | RS485/CAN | |
| Battery Voltage range (V) | 420V-850V | |
| Max. Current (A) | 673A | |
| DC(PV) | ||
| Max.PV input voltage(V) | 1000VDC | |
| Max.PV power(KW) | 300/360KW | |
| MPPT voltage range(V) | 200VDC-850VDC | |
| MPPT voltage range@full load (V) | 450VDC-850VDC | |
| AC(on-grid) | ||
| Max output power(kVA) | 275KVA | |
| Rate output power(kW) | 250KW | |
| Rated voltage(V) | 400V | |
| Voltage range(V) | 320V-460V | |
| Rated current(A) | 361A | |
| Max. output current(A) | 397A | |
| Rated frequency (Hz) | 50/60Hz | |
| Frequency range (Hz) | 45-55/55-65Hz | |
| THDI | <3% | |
| Power factor | 1lagging-1leading（Settable） | |
| AC connection | 3W+N+PE | |
| AC(off grid) | ||
| Rated voltage(V) | 400V | |
| THDU | ＜1% Linear ＜5% Nonlinear | |
| Rated frequency(Hz) | 50/60Hz | |
| Overload capacity | 110% long-term | |
| General data | ||
| Max.efficiency | 97.30% | |
| Ingress protection | IP54 | |
| Fire extinguishing system | support | |
| Operating temperature | －30～+55℃ | |
| PCS cooling way | Temperature control intelligent air cooling | |
| Battery cooling way | Air conditioning cooling | |
| Relative humidity | 0 ~95% non-condensing | |
| Altitude | 4500m(>3000m Derating) | |
| Dimension D*W*H (mm) | 6058*2438*2896mm | |
| Weight(kg) | Customized | |
| Transformer ratio | 270/400 | |
| On/ Off grid switching | Automatic | |
| Display and communication | ||
| Display | LCD touch-screen | |
| BMS communication | RS485/CAN | |
| EMS communication | RS485，TCP/IP | |
