Inverter – GOODWE – GW20K-ET – hybrid – HV
| Manufacturer | |
|---|---|
| Rated power | |
| Power supply | |
| Hybrid device | |
| MPPT | |
| Warranty | |
| Net width | |
| Net depth | |
| Net height | |
| CAN | |
| RS485 | |
| SPD Type II | |
| SPD Type III | |
| MPPT voltage range | |
| Maximum input current per MPPT [A] | |
| Maximum input power [W] | |
| Weight | 55,64 kg |
| CN | 85044086 |
Incl. VAT
Product details
| Manufacturer | |
|---|---|
| Rated power | |
| Power supply | |
| Hybrid device | |
| MPPT | |
| Warranty | |
| Net width | |
| Net depth | |
| Net height | |
| CAN | |
| RS485 | |
| SPD Type II | |
| SPD Type III | |
| MPPT voltage range | |
| Maximum input current per MPPT [A] | |
| Maximum input power [W] | |
| Weight | 55,64 kg |
| CN | 85044086 |
GoodWe ET Series (15–30 kW)
The three-phase hybrid GoodWe inverters of the ET series are designed for demanding, high-power rooftop photovoltaic installations. These devices provide high efficiency, energy independence and advanced energy management thanks to the peak-shaving feature. The series offers reliable backup power with standard UPS switching in under 10 ms and the ability to work with high-voltage energy storage systems, including GoodWe Lynx Home F models.
Key features of the GoodWe ET Series (15–30 kW):
- High backup power capacity: Ensures continuity of operation for a household or business in case of grid outage with fast UPS switching (<10 ms).
- Wide power and configuration range: Available in versions from 15 kW to 30 kW with 3 independent MPPT units, making it easier to design large systems.
- Peak-shaving: Intelligent energy management reduces operating costs and optimizes self-consumption.
- High efficiency: Maximum inverter efficiency of up to 98.0% ensures effective conversion of solar energy.
- Safety and durability: IP66 protection rating, integrated comprehensive protections, and optional AFCI arc-fault protection.
Who is this a good choice for?
The GoodWe ET inverter series with power from 15–30 kW is an ideal solution for owners of large photovoltaic installations in residential buildings with high energy demand and in commercial facilities. The device is suitable wherever reliable backup power, maximized self-consumption and flexible cooperation with three-phase high-voltage energy storage systems are crucial.
| Parameter | GW15K-ET | GW20K-ET | GW25K-ET | GW29.9K-ET |
|---|---|---|---|---|
| Battery input parameters | ||||
| Battery type | Lithium-ion (Li-Ion) | Lithium-ion (Li-Ion) | Lithium-ion (Li-Ion) | Lithium-ion (Li-Ion) |
| Battery nominal voltage (V) | 500 | 500 | 500 | 500 |
| Battery voltage range (V) | 200-800 | 200-800 | 200-800 | 200-800 |
| Start-up voltage (V) | 180 | 180 | 180 | 180 |
| Number of battery inputs | 1 | 1 | 2 | 2 |
| Max. continuous charging current (A) | 50 | 50 | 50 × 2 | 50 × 2 |
| Max. continuous discharging current (A) | 50 | 50 | 50 × 2 | 50 × 2 |
| Max. charging power (W) | 15000 | 20000 | 25000 | 30000 |
| Max. discharging power (W) | 15000 | 20000 | 25000 | 30000 |
| PV string input parameters | ||||
| Max. input power (W) | 22500 | 30000 | 37500 | 45000 |
| Max. input voltage (V) | 1000 | 1000 | 1000 | 1000 |
| MPPT operating voltage range (V) | 200-850 | 200-850 | 200-850 | 200-850 |
| Start-up 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 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 apparent output power to the grid (VA) | 15000 | 20000 | 25000 | 29900 |
| Max. apparent output power to the grid (VA) | 16500 | 22000 | 27500 | 29900 |
| Max. apparent power from the grid (VA) | 15000 | 20000 | 25000 | 30000 |
| Rated output voltage (V) | 380 / 400, 3L/N/PE | 380 / 400, 3L/N/PE | 380 / 400, 3L/N/PE | 380 / 400, 3L/N/PE |
| Output voltage range (V) | 0-300 | 0-300 | 0-300 | 0-300 |
| Rated AC grid frequency (Hz) | 50/60 | 50/60 | 50/60 | 50/60 |
| AC grid frequency range (Hz) | 45-65 | 45-65 | 45-65 | 45-65 |
| Max. AC output current to the grid (A) | 23.9 | 31.9 | 39.9 | 43.3 |
| Max. AC current from the grid (A) | 21.7 | 29.0 | 36.2 | 43.3 |
| Power factor adjustment range | ~1 (adjustable from 0.8 leading to 0.8 lagging) | ~1 (adjustable from 0.8 leading to 0.8 lagging) | ~1 (adjustable from 0.8 leading to 0.8 lagging) | ~1 (adjustable from 0.8 leading to 0.8 lagging) |
| Total harmonic distortion (THD) | <3% | <3% | <3% | <3% |
| AC output parameters (backup circuit) | ||||
| Backup rated apparent power (VA) | 15000 | 20000 | 25000 | 29900 |
| Max. apparent output power without grid (VA) | 15000 (18000@60s, 24000@3s) | 20000 (24000@60s, 32000@3s) | 25000 (30000@60s) | 30000 (36000@60s) |
| Max. apparent output power with grid (VA) | 15000 | 20000 | 25000 | 29900 |
| Max. output 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 distortion (with 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% |
| Protections | ||||
| 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 the energy storage power circuit | Integrated | Integrated | Integrated | Integrated |
| Anti-islanding protection | Integrated | Integrated | Integrated | Integrated |
| AC circuit overcurrent protection | Integrated | Integrated | Integrated | Integrated |
| AC circuit short-circuit protection | Integrated | Integrated | Integrated | Integrated |
| AC surge protection | Integrated | Integrated | Integrated | Integrated |
| DC isolator | Integrated | Integrated | Integrated | Integrated |
| DC surge protector | Type II | Type II | Type II | Type II |
| AC surge protector | Type III | Type III | Type III | Type III |
| Arc-fault protection (AFCI) | Optional | Optional | Optional | Optional |
| Remote shutdown | Integrated | Integrated | Integrated | Integrated |
| General data | ||||
| 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) | <15 | <15 | <15 | <15 |
| Protection rating | IP66 | IP66 | IP66 | IP66 |
| Mounting method | Wall mount | Wall mount | Wall mount | Wall mount |
*1: Max. input power (W), not continuous for 1.5 × nominal power.
*2: For a 1000V system the maximum operating voltage is 950V.
*3: According to local grid regulations.
*4: Output voltage range (V): phase voltage.
*5: Can be achieved only when PV and battery power are sufficient.
*6: No backup output.
*7: For a 380V grid, the Max. AC output current to the grid is respectively: 25.0A for GW15K-ET, 33.3A for GW20K-ET, 41.7A for GW25K-ET, 49.8A for GW29.9K-ET.
*8: When a load is connected to the inverter’s backup port, Max. apparent power from the grid can reach 22.5kVA for GW15K-ET, 30kVA for GW20K-ET, 33kVA for GW25K-ET and 33kVA for GW29.9K-ET, respectively.
*9: When a load is connected to the inverter’s backup port, Max. AC current from the grid can reach 34A for GW15K-ET, 45A for GW20K-ET, 50A for GW25K-ET and 50A for GW29.9K-ET, respectively.

