Product Overview
The GoodWe ET LV 20kW 3-phase hybrid inverter is the largest model in the ET LV low-voltage range, designed for high-demand residential solar and storage systems. Built for 48V battery platforms, it combines strong PV input capacity, backup-ready operation and flexible multi-MPPT design for larger homes and installations that need dependable three-phase performance.
Key Features
- 20kW three-phase hybrid inverter designed for larger residential PV and energy storage applications.
- Compatible with 48V LFP (LiFePO4) and lead-acid battery systems.
- Up to 40kW PV input capacity supports larger solar array designs and 200% PV oversizing.
- 4 MPPTs with 20A max input current per MPPT help improve design flexibility across multiple roof sections and orientations.
- Dual battery inputs with up to 208A / 208A continuous charge and discharge current support higher energy throughput.
- Seamless switching under 4ms helps maintain supply to essential loads during outages.
- Supports generator integration and battery charging from the generator side.
- IP66-rated protection, integrated DC and AC Type II surge protection, and unbalanced output up to 150% support robust system design.
Applications
- Larger residential solar and backup systems requiring three-phase power.
- Homes with high daily energy demand and substantial low-voltage battery storage.
- Installations needing broader PV design flexibility across multiple roof orientations.
- Projects where backup continuity for essential loads is a priority.
Why Choose This Product?
The ET LV 20kW is suited to customers who need the highest output in the GoodWe ET LV range while staying on a 48V battery platform. It offers more PV headroom, higher charging and discharging capability, and broad system flexibility for demanding three-phase residential installations.
Important Notes
- Installation should be carried out by a qualified electrician and in line with the latest GoodWe documentation.
- Battery compatibility should be confirmed against the latest approved battery list before publishing or installation.
- AFCI and rapid shutdown functions are listed as optional features and may depend on final configuration or market version.
Technical Specifications
| Specification |
Detail |
| Brand |
GoodWe |
| Model |
GW20K-ET-L-G10 |
| Product Type |
Three-phase hybrid inverter |
| Nominal Power |
20kW |
| Max. PV Input Power |
40kW |
| Battery Type |
LFP (LiFePO4) / Lead-acid |
| Nominal Battery Voltage |
48V |
| Battery Voltage Range |
40 - 60V |
| Battery Inputs |
2 |
| Max. Continuous Charging Current |
208 / 208A |
| Max. Continuous Discharging Current |
208 / 208A |
| Max. Charging Power |
20kW |
| Max. Discharging Power |
22kW |
| MPPTs |
4 |
| Max. MPPT Current |
20 / 20 / 20 / 20A |
| Max. Input Voltage |
1000V |
| MPPT Operating Voltage Range |
150 - 850V |
| Nominal AC Output |
400 / 380V, 3L / N / PE |
| Max. Apparent Power to Utility Grid |
22.0kVA |
| Max. Efficiency |
97.8% |
| Battery to AC Efficiency |
95.5% |
| Ingress Protection Rating |
IP66 |
| Cooling Method |
Smart fan cooling |
| Dimensions |
551 × 756 × 258mm |
| Weight |
51.2kg |
| Mounting Method |
Wall mounted |
| Communication with BMS |
CAN |
