Solar Hybrid Inverter Goodwe ESA 20kW 3 Phase 4 MPPT w/WIFI & 3 x CTs (GW20K-ETA-G20)
SKU 12171
by GOODWE
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The Goodwe GW20K-ETA-G20 is a 20 kW three-phase DC-coupled hybrid inverter from Goodwe's ETA G20 family, built for residential and light commercial sites that need solar plus high-voltage battery storage. Four MPP trackers and up to 200% DC oversizing give designers flexibility on larger arrays, while a built-in 80 A whole-home backup port with sub-4 ms transfer keeps critical loads online during outages. Backed by AFCI 3.0 arc-fault detection and IP66 outdoor protection, it is rated for -35 to +60 degrees Celsius operation across the Australian climate range.
Key Features
- 20 kW / 20 kVA rated three-phase hybrid inverter (DC-coupled HV battery)
- Four MPP trackers with up to 200% PV oversizing
- Max efficiency 98.2%, European efficiency 97.4%, battery-to-AC 98.0%
- 80 A whole-home backup port with sub-4 ms transfer
- AI-driven AFCI 3.0 arc-fault detection
- IP66, operating range -35 to +60 degrees Celsius
- Supports on/off-grid parallel operation
- Compatible with the Goodwe Lynx Home U HV battery stack, scalable to 108 kWh per inverter
- Compliant with AS/NZS 4777.2:2020
Specifications
| Model | GW20K-ETA-G20 |
| Rated power | 20 kW / 20 kVA |
| MPPTs | 4 (1/1/2/2 strings) |
| MPPT range | 120 to 950 V |
| Max efficiency | 98.2% |
| Backup transfer time | Less than 4 ms |
| Protection rating | IP66 |
| Weight | 38 kg |
Installation Manual: Download from Goodwe Australia (PDF)