The Goodwe GW20K-ET inverter is a 20 kW three-phase hybrid high-voltage inverter designed for large residential and small commercial solar systems. It delivers reliable energy backup, peak shaving, and smart load management to reduce electricity costs. The inverter supports high-efficiency PV generation with up to 98% efficiency and flexible battery integration.
KSh 369,999.00
The GW20K-ET hybrid inverter delivers 20 kW of high-voltage, three-phase power for large residential, small commercial, and industrial solar systems. Additionally, this inverter provides reliable energy backup and efficient load management from the first day of installation. Its advanced peak shaving also balances power demand and grid imports, reducing electricity costs and increasing energy autonomy. With its high capacity and intelligent controls, the GW20K-ET inverter ensures that your solar system operates at optimal efficiency under varying conditions.
The ET Series supports 150% DC input oversizing and 15A string input current, delivering higher energy yield even under low solar radiation. Furthermore, with a maximum efficiency of 98%, the GoodWe hybrid inverter maximizes solar generation while optimizing energy consumption. In addition, it supports high-power solar modules, enabling users to expand their systems as energy needs grow. These features ensure consistent high output and reliable performance, making it suitable for demanding applications.
The inverter includes Type II surge protection (SPD) on the DC side, which safeguards your system from lightning strikes and voltage surges. In addition, an optional Arc Fault Circuit Interrupter (AFCI) detects arc faults, triggers alarms, and disconnects the circuit automatically. As a result, these safety measures provide long-term system protection and give users peace of mind. Moreover, the robust design allows the inverter to operate efficiently in harsh environmental conditions, including extreme temperatures and high humidity.
The GW20K-ET hybrid inverter comes with an integrated dry contact, allowing you to control external devices such as heat pumps or other loads. Meanwhile, it also provides power export control, which helps reduce electricity costs and maximize self-consumption across your property. In addition, the intelligent energy management system enables users to monitor and adjust energy flows through a mobile app or portal, offering full visibility and control of their solar system.
The inverter supports plug & play installation and works with various high-voltage batteries, including GoodWe Lynx Home F. Additionally, it handles advanced energy storage systems, making the GW20K-ET inverter highly versatile for modern hybrid solar solutions. Together, its combination of safety, high performance, and smart energy management makes it an ideal choice for homes and businesses seeking reliable, efficient, and future-proof solar power.
Technical Specifications
| Category | Specification |
|---|---|
| Model | Goodwe GW20K-ET |
| Series | ET Series |
| Battery Type | Li-Ion |
| Nominal Battery Voltage (V) | 500 |
| Battery Voltage Range (V) | 200 – 800 |
| Start-up Battery Voltage (V) | 200 |
| Number of Battery Inputs | 1 |
| Max Continuous Charging Current (A) | 50 |
| Max Continuous Discharging Current (A) | 50 |
| Max Charging Power (W) | 20,000 |
| Max Discharging Power (W) | 20,000 |
| PV Max Input Power (W) | 30,000 |
| Max PV Input Voltage (V) | 1000 |
| MPPT Operating Voltage Range (V) | 200 – 850 |
| Nominal PV Input Voltage (V) | 620 |
| Max Input Current per MPPT (A) | 30 |
| Max Short Circuit Current per MPPT (A) | 38 |
| Number of MPPT Trackers | 2 |
| Number of Strings per MPPT | 2 / 2 |
| Nominal AC Output Power (W) | 20,000 |
| Max AC Output Power (VA) | 22,000 |
| Nominal AC Voltage (V) | 380 / 400, 3L/N/PE |
| AC Output Voltage Range (V) | 0 – 300 |
| Nominal AC Grid Frequency (Hz) | 50 / 60 |
| AC Grid Frequency Range (Hz) | 45 – 65 |
| Max AC Current Output to Grid (A) | 31.9 |
| Power Factor | ~1 (adjustable 0.8 lag – 0.8 lead) |
| Total Harmonic Distortion (THD) | ≤3.05% |
| Max Efficiency | 98% |
| Operating Temperature Range (°C) | -35 ~ +60 |
| Relative Humidity (%) | 0 – 95 |
| Max Operating Altitude (m) | 4000 |
| Cooling Method | Smart Fan Cooling |
| User Interface | LED, WLAN + APP |
| Communication with BMS | RS485 / CAN |
| Communication with Meter | RS485 |
| Communication with Portal | WiFi + LAN + Bluetooth |
| Noise Emission (dB) | <45 |
| Dimensions (W×H×D mm) | 520 × 660 × 220 |
| Weight (kg) | 48 |
| Ingress Protection Rating | IP66 |
| Mounting Method | Wall Mounted |
| Self-Consumption at Night (W) | <15 |
| Topology | Non-isolated |
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