GoodWe 11.4kW Hybrid Inverter (GW11K4-ES-US20)

Product Overview

The GoodWe GW11K4-ES-US20 is an 11.4 kW split-phase hybrid inverter in the ES-US Series for North American solar-plus-storage. It couples high-voltage (80–495 V) Li-ion batteries with up to four MPPTs so complex residential roofs can feed both self-consumption and backup loads.

Unlike 48 V low-voltage hybrids, ES-US uses a ~300 V nominal HV battery architecture. An Automatic Backup Device (ABD) is required for backup operation per GoodWe. Optional EV charger integration is available through GoodWe’s ecosystem.

Best For

• Residential HV battery hybrid systems at 11.4 kW / 120–240 V backup
• Rooftops needing up to 4 MPPTs and up to 17.1 kW PV input
• Projects that can supply a GoodWe-compatible ABD for backup transfer

Key Features

• 11.4 kW on-grid and backup nominal power; 240/120 V backup output
• 4 MPPTs × 1 string; 16 A / 23.4 A Isc per MPPT
• HV Li-ion battery: 80–495 V; 50 A charge/discharge; up to 11.4 kW charge / 11.97 kW discharge
• Integrated AFCI, rapid shutdown, battery arc-fault detection, DC Type II SPD
• Generator compatible; optional EV Level 2 charger function
• LAN + Bluetooth + Wi-Fi (4G optional); SolarGo app
• NEMA Type 4X wall-mount enclosure

Key Specifications

• Model / SKU: GW11K4-ES-US20
• Nominal AC power: 11,400 W; max AC current to grid: 47.5 A
• Backup: 11,400 VA nominal; surge with grid up to 17,280 VA @ 10 s (when PV+battery allow)
• Max PV input: 17,100 W; max PV voltage 600 V; MPPT 50–550 V
• Battery: Li-ion; nominal 300 V; range 80–495 V
• Max efficiency: 97.6%
• Dimensions: 19.1 × 35.4 × 7.5 in; weight 84.9 lb
• Ambient: −31°F to 140°F (−35°C to 60°C)
• Grid: UL 1741 SB, CA Rule 21, HECO Rule 14, IEEE 1547

Compatibility / Important Considerations

• Requires GoodWe Automatic Backup Device for backup — inverter alone is not a complete backup transfer solution.
• Only HV batteries on GoodWe’s ES-US compatibility list; not a 48 V low-voltage hybrid.
• Confirm RSD, meter, and ABD part numbers for your AHJ and utility.
• Professional installation required.