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GoodWe ET Series Inverter
The GoodWe ET Series inverter, ranging from 15 to 29.9, is suitable for large residential PV projects and small commercial projects. The GoodWe hybrid inverter features an integrated switching device for backup power supply. In case of a grid outage, the inverter can continue to power the home with 3-phase emergency power. The hybrid inverter is capable of black-start and can charge solar energy.
The trend towards increasing power of PV modules has an impact on the overall requirements for photovoltaic installations. As leaders in development, we are working to ensure that GoodWe ET Series inverters meet the needs of high-power rooftop solar installations by facilitating backup power supply, reducing peak loads through peak-shaving, and managing loads to increase self-consumption and lower electricity costs. The ET Series can be combined with energy storage systems of various capacities and brands, including GoodWe Lynx Home F.
| Technical Parameters | GW15K-ET | GW20K-ET | GW25K-ET | GW29.9K-ET |
|---|---|---|---|---|
| Battery Input Parameters | ||||
| Battery Type | Li-Ion | Li-Ion | Li-Ion | Li-Ion |
| Nominal Battery Voltage (V) | 500 | 500 | 500 | 500 |
| Battery Voltage Range (V) | 200 ~ 800 | 200 ~ 800 | 200 ~ 800 | 200 ~ 800 |
| Startup Voltage (V) | 180 | 180 | 180 | 180 |
| Number of Battery Inputs | 1 | 1 | 2 | 2 |
| Max. Charging Current (A) | 50 | 50 | 50 × 2 | 50 × 2 |
| Max. Discharging Current (A) | 50 | 50 | 50 × 2 | 50 × 2 |
| Max. Charging Power (W) | 15000 | 20000 | 12500 × 2 | 15000 × 2 |
| Max. Discharging Power (W) | 15000 | 20000 | 12500 × 2 | 15000 × 2 |
| PV Chain Input Parameters | ||||
| Max. Input Power (W)*1 | 22500 | 30000 | 37500 | 45000 |
| Max. Input Voltage (V)*2 | 1000 | 1000 | 1000 | 1000 |
| MPPT Working Voltage Range (V) | 200 ~ 850 | 200 ~ 850 | 200 ~ 850 | 200 ~ 850 |
| Startup Voltage (V) | 200 | 200 | 200 | 200 |
| Nominal Input Voltage (V) | 620 | 620 | 620 | 620 |
| Max. Input Current per MPPT (A) | 30 | 30 | 30 | 30 |
| Max. Short Circuit Current per MPPT (A) | 38 | 38 | 38 | 38 |
| Number of MPPTs | 2 | 2 | 3 | 3 |
| Number of PV Module Strings per MPPT | 2 / 2 | 2 / 2 | 2 / 2 / 2 | 2 / 2 / 2 |
| AC Output Parameters (Grid) | ||||
| Rated Output Power (W) | 15000 | 20000 | 25000 | 29900 |
| Rated Output Apparent Power to Grid (VA) | 15000 | 20000 | 25000 | 29900 |
| Max. Output Apparent Power to Grid (VA) | 16500 | 22000 | 27500 | 29900 |
| Max. Apparent Power from Grid (VA) | 22500 | 30000 | 33000 | 33000 |
| Rated Output Voltage (V) | 380 / 400, 3L / N / PE | 380 / 400, 3L / N / PE | 380 / 400, 3L / N / PE | 380 / 400, 3L / N / PE |
| Rated AC Grid Frequency (Hz) | 50 / 60 | 50 / 60 | 50 / 60 | 50 / 60 |
| Max. AC Output Current to Grid (A)*6 | 25.0 | 33.3 | 41.7 | 49.8 |
| Max. AC Current from Grid (A) | 34.0 | 45.0 | 50.0 | 50.0 |
| Power Factor Regulation Range | ~1 (adjustable from leading 0.8 to lagging 0.8) | |||
| Total Harmonic Distortion THDv | <3% | <3% | <3% | <3% |
| AC Output Parameters (Backup Circuit) | ||||
| Backup Rated Apparent Power (VA) | 15000 | 20000 | 25000 | 29900 |
| Max. Backup Apparent Power without Grid (VA)*4 | 15000 (18000@60s, 24000@3s) | 20000 (24000@60s, 32000@3s) | 25000 (30000@60s) | 30000 (36000@60s) |
| Max. Backup Apparent Power with Grid (VA)*3 | 15000 | 20000 | 25000 | 29900 |
| Max. Backup Current (A) | 22.7 (27.3@60s, 36.4@3s) | 30.3 (36.4@60s, 48.5@3s) | 37.9 (45.5@60s) | 45.5 (54.5@60s) |
| Rated Output Voltage (V) | 380 / 400 | 380 / 400 | 380 / 400 | 380 / 400 |
| Rated Output Frequency (Hz) | 50 / 60 | 50 / 60 | 50 / 60 | 50 / 60 |
| Output THDv (under linear load) | <3% | <3% | <3% | <3% |
| Efficiency | ||||
| Max. Efficiency | 98.0% | 98.0% | 98.0% | 98.0% |
| European Efficiency | 97.5% | 97.5% | 97.5% | 97.5% |
| Max. Battery Efficiency under Load | 97.5% | 97.5% | 97.5% | 97.5% |
| MPPT Efficiency | 99.9% | 99.9% | 99.9% | 99.9% |
| Protection Features | ||||
| PV String Current Monitoring | Integrated | Integrated | Integrated | Integrated |
| PV Insulation Resistance Detection | Integrated | Integrated | Integrated | Integrated |
| Residual Current Monitoring | Integrated | Integrated | Integrated | Integrated |
| Reverse Polarity Protection in DC Circuit | Integrated | Integrated | Integrated | Integrated |
| Reverse Polarity Protection in Energy Storage Circuit | Integrated | Integrated | Integrated | Integrated |
| Islanding Protection | Integrated | Integrated | Integrated | Integrated |
| AC Overcurrent Protection | Integrated | Integrated | Integrated | Integrated |
| AC Short Circuit Protection | Integrated | Integrated | Integrated | Integrated |
| AC Surge Protection | Integrated | Integrated | Integrated | Integrated |
| DC Isolation Switch | Integrated | Integrated | Integrated | Integrated |
| DC Surge Arrester | Type II | Type II | Type II | Type II |
| AC Surge Arrester | Type III | Type III | Type III | Type III |
| Arc Fault Circuit Interruption (AFCI) Protection | Optional | Optional | Optional | Optional |
| Remote Shutdown | Integrated | Integrated | Integrated | Integrated |
| General Specifications | ||||
| Operating Temperature Range (°C) | -35 ~ +60 | -35 ~ +60 | -35 ~ +60 | -35 ~ +60 |
| Relative Humidity | 0 ~ 95% | 0 ~ 95% | 0 ~ 95% | 0 ~ 95% |
| Max. Operating Altitude (m) | 4000 | 4000 | 4000 | 4000 |
| Cooling Method | Intelligent Fan Cooling | Intelligent Fan Cooling | Intelligent Fan Cooling | Intelligent Fan Cooling |
| Display | LED, WLAN + APP | LED, WLAN + APP | LED, WLAN + APP | LED, WLAN + APP |
| BMS Communication | RS485 / CAN | RS485 / CAN | RS485 / CAN | RS485 / CAN |
| Meter Communication | RS485 | RS485 | RS485 | RS485 |
| Portal Communication | WiFi / 4G | WiFi / 4G | WiFi / 4G | WiFi / 4G |
| Weight (kg) | 48 | 48 | 54 | 54 |
| Dimensions (W × H × D mm) | 520 × 660 × 220 | 520 × 660 × 220 | 520 × 660 × 220 | 520 × 660 × 220 |
| Noise Emission (dB) | <45 | <45 | <45 | <60 |
| Topology | Non-isolated | Non-isolated | Non-isolated | Non-isolated |
| Night Power Consumption (W)*5 | <15 | <15 | <15 | <15 |
| Standby Power Consumption (W) | <10 | <10 | <10 | <10 |
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