Goodwe 20kW 3Ph Hybrid 2MPPT (GW20K-ET (AS4777-2 2020))
The GoodWe GW20K-ET is a 20 kW (AC) three-phase hybrid inverter from GoodWe’s “ET” high-voltage battery-ready series. It integrates solar PV input, battery storage, and grid-tie in a single unit — offering 3-phase output, hybrid storage capability, backup/UPS-style output, and flexible PV + battery + load management.
- Product Code:19560
- Model No.:GW20K-ET (AS4777-2 2020)
- Delivery & return
Hybrid-Ready with High-Voltage Battery Support & Backup Functionality: The GW20K-ET supports high-voltage lithium-ion batteries (nominal ~ 500 V, range ~ 200–800 V) and has built-in emergency power / backup (UPS-style) output — ensuring that in case of grid failure, connected loads can continue to be powered from battery + PV.
Dual MPPT for Flexible PV Layouts: With 2 independent MPPT trackers and multiple string-inputs per MPPT, the inverter allows flexible PV string configurations (e.g. different roof orientations or array sections) — helping optimize energy harvest even under varied shading or orientation conditions.
3-Phase Output, Smart Grid & Load Management Features: With 3-phase AC output (380/400 V, 3L/N/PE) and hybrid + battery integration, the inverter suits larger homes, small commercial, or small industrial installations. It also supports smart features: load/energy management, export-control, backup load prioritization, and communication interfaces for monitoring.
High PV Input Capacity & Oversizing Flexibility: The inverter can accept a high DC input — up to ~ 30,000 Wₚ (PV array) according to datasheet — providing ample headroom for large PV arrays or higher-wattage modules. This gives flexibility in PV module selection and allows you to oversize the PV array relative to inverter rating for better yield.
- Rating (kW) : 20,000 W (20 kW)
- Max. DC-Input Capacity : Up to 1000 V DC
- MPPT : 2 MPPTs
- Phase : 3-phase
- IP Rating : IP66
- Weight (kg) : 56
- Product Warranty (Years) : 5 years
- Dimension (W/D/H) : 520*220*660

































