Description
Whole-home emergency power with heavy-duty grid bypass.
GoodWe ESA GW10K-ETA-G20 is a 10 kW flagship three-phase All-in-One hybrid inverter unit with 20 kWp solar intake and 63 A grid bypass, engineered to deliver 10 kVA whole-home emergency backup in a cable-free vertical column.
10,000 VA Continuous Three-Phase Backup
Powers whole-home three-phase domestic circuits and heat pumps seamlessly during grid blackouts.
20,000 W Solar PV Input (200% Oversizing)
Massive DC intake ensures rapid battery charging and full domestic self-consumption even in overcast winter conditions.
63 A Heavy-Duty Grid Bypass
Channels high utility current through to domestic sub-panels smoothly without external bypass switchgear.
Cable-Free Column Stacking
Mounts directly atop BAT-D-G20 battery bricks with internal busbars, eliminating wall clutter and exposed conduits.
More product details
Rather than forcing homeowners to rewire their distribution panel into complicated critical and non-critical sub-panels, the GW10K-ETA-G20 features a 63 A continuous internal bypass contactor that handles full household utility current.
- Delivers 10,000 VA continuous three-phase backup power across L1, L2, and L3 during utility blackouts.
- 63 A continuous bypass allows high-draw appliances (EV chargers, heat pumps, ovens) to run without tripping main fuses.
- Sub-10 ms automatic transfer ensures zero computer reboots or smart home controller resets.
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GoodWe ESA GW10K-ETA-G20 (10 kW three-phase all-in-one, current flagship)
Double DC oversizing with furniture-grade column stacking.
Sized to absorb generation from extensive multi-aspect residential roofs, the GW10K-ETA-G20 captures high solar yields while mounting directly atop high-density battery modules with internal busbars. Internal push-in busbars pass high-voltage power and communication directly down the stack without external cables. Eliminates exposed high-voltage DC wiring on garage and utility room walls, maximizing residential safety. IP66 cast-aluminum casing certified for clean indoor utility rooms or sheltered outdoor walls (-35 to +60 °C).
Runs 11.0 kW continuous battery power
Integrated high-voltage battery electronics deliver 10.0 kW charge at 13.4 A and 11.0 kW discharge at 14.7 A.
Fits 4 separate MPP trackers for 20 kW solar
Four independent 21 A trackers accommodate multiple string orientations up to 1000 V maximum DC input.
Holds 20.0 kVA surge output for heavy equipment
Off-grid reserve handles sudden startup surges up to 20.0 kVA for 10 s alongside 11.0 kVA continuous delivery.
Technical data
The flagship 10 kW All-in-One residential energy hub engineered for complete household autonomy.
20 kWp solar intake delivering 10 kW continuous three-phase whole-home backup.
Standing as the core 10 kW three-phase model in GoodWe's ESA G20 modular range, the GW10K-ETA-G20 combines 10,000 W continuous AC output with heavy 63 A grid pass-through capability. It stacks cleanly over high-density 314 Ah BAT-D-G20 battery packs, delivering furniture-grade aesthetic integration while absorbing up to 20,000 Wp of rooftop solar.
- Continuous 3-Phase Power
- 10,000 VA
- 200% Solar DC Intake
- 20,000 Wp
- Heavy-Duty Grid Bypass
- 63 A
- External DC Cables
- Zero
Inverter: AC Output & Backup
- Rated / max. power
- 10 kW rated and max (GW10K-ETA-G20). Family: 8 / 10 / 12 / 15 kW in this catalogueseries spans 5-30 kW
- Rated current at 400 V
- 14.5 A per phase (3L/N/PE, 220/380 V or 230/400 V, 50/60 Hz)
- Max. apparent power from grid (passthrough)
- 43.5 kVA, the internal 63 A bypass carries the whole-house load through the unit, so no external transfer switch is needed (5-20 kW classes)
- Backup nominal apparent power
- 10 kVA
- Backup max. apparent power (off-grid)
- 11.0 kVA continuous (20.0 kVA for 10 s)
- Backup max. current (off-grid)
- 22.8 A
- Max. unbalanced single-phase output
- 5 kW on one phase (GW10K-ETA-G20, per user manual)
- On/off-grid switching time
- <4 ms
- Power factor / THDi
- 0.8 leading - 0.8 lagging / THDi <3%
PV Input
- Max. PV input power
- 20 kW (200% oversizing vs. 10 kW AC)
- Max. input voltage
- 1000 V (standby above 950 V)
- MPPT operating voltage range
- 120-950 V; start-up 150 V; nominal input 750 V
- Number of MPPTs / strings
- 4 MPPTs, 1 string per MPPT
- Max. MPPT current / short-circuit current
- 21/21/21/21 A / 26 A per MPPT
Battery Interface & Modules
- Battery type / voltage window
- LFP (LiFePO4)700-950 V in the three-phase system, nominal 750 V, one battery input
- Max. charge / discharge power
- 10.0 kW / 11.0 kW (GW10K-ETA-G20)
- Max. continuous charge / discharge current
- 13.4 A / 14.7 A
- Module options
- GW5.1-BAT-D-G20/G21: 5.12 kWh rated / 5.01 kWh usableGW8.3-BAT-D-G20/G21: 8.32 / 8.01 kWh · GW6.0-BAT-D-G20: 6.0 / 5.82 kWh · GW9.0-BAT-D-G20: 9.0 / 8.72 kWh
- Scalability
- Up to 12 modules per system (max 6 per single stacked column), up to 108 kWhmixing of different capacities and old/new modules supported
- Module cycle life
- >=8,000 cycles (5.1 / 8.3 kWh modules)>=10,000 cycles (6.0 / 9.0 kWh modules), lab conditions, 100% DoD, 25±2 C
- Module protection & fire safety
- IP66 modules, integrated aerosol fire extinguishingheating integrated on 6.0/9.0 modules (optional on 5.1/8.3) for charging down to -20 C
- Module dimensions / weight
- 800 x 326 x 270 mm per module57.5-79 kg depending on module
Efficiency
- Max. efficiency
- 98.1%
- European efficiency
- 97.2%
- Max. battery-to-AC efficiency
- 98.0%
System & Environment
- Ingress protection
- IP66 (system marketed for outdoor use in harsh environments)
- Low-temperature operation
- Reliable operation down to -20 C, battery heating module required for -20 C operation (integrated on 6.0/9.0 kWh modules)
- Noise
- As low as 30 dB at 25 C ambient (5-8 kW classessmart fan cooling with ultra-silent mode)
- Integrated protections
- PV string current monitoring, insulation resistance detection, residual current monitoring, PV/battery reverse polarity, anti-islanding, AC over-current/short-circuit/over-voltage, integrated DC switch, Type II DC SPD (Type I+II optional), Type II AC SPD, AFCI optional, remote shutdown
Project fit
Where this model fits.
Scenarios that show which projects the GoodWe ESA GW10K-ETA-G20 (10 kW three-phase all-in-one, current flagship) belongs in, what to verify before quoting, and when another model is the better pick.
Large All-Electric Single-Family Homes (12–16 kWp PV) Demanding Clean Integration
Modern detached residences equipped with 3-phase air-to-water heat pumps, induction cooktops, and domestic EV charging, where owners reject industrial wall clutter.
Consolidates a 10 kW hybrid inverter, 63 A bypass switchgear, and up to 18 kWh of battery storage into a single sleek vertical column occupying just 0.25 m² of floor space.
- Confirm this model against the adjacent rating in the same family
Documents
GoodWe ESA Series 5-30kW Datasheet (EN)Product questions
Can the GW10K-ETA-G20 run three-phase induction cooktops and heat pumps during a blackout?
Yes. Delivers 10,000 VA continuous three-phase emergency backup. The GW10K-ETA-G20 supplies full 10,000 VA continuous power across L1, L2, and L3 on its backup output. Its high-current power stage effortlessly carries the starting inrush currents of heat pump compressors and kitchen appliances without voltage sags or tripping.
What battery configurations can be stacked beneath this 10 kW inverter?
6.0 kWh, 9.0 kWh, 12.0 kWh, or 18.0 kWh using BAT-D-G20 modules. You can stack either GW6.0-BAT-D-G20 (6.0 kWh) or GW9.0-BAT-D-G20 (9.0 kWh) modules beneath the inverter unit. Stacking two 9.0 kWh modules creates an 18.0 kWh column, providing ample energy reserves for multi-day winter self-consumption.
System components
Required components
GoodWe GM3000 three-phase smart meter
Item number: DLK-GOODWE-GM3000
The ESA controls self-consumption and export limiting from a grid-point measurement; in GoodWe three-phase systems this is a GoodWe smart meter with clip-on CT. Confirm which meter/CT variant is already in the scope of delivery of your ESA order before adding one.
GoodWe GM330 three-phase CT meter (large-mains alternative)
Item number: DLK-GOODWE-GM330
CT-based alternative where the service is too large for direct metering or the meter must sit in an existing distribution board. It is also one of the two meters GoodWe names for generator integration (GMK330 or GM330 per the ESA user manual).
Recommended components
GoodWe GW6.0 / GW9.0-BAT-D-G20 battery modules
Item number: DLK-GOODWE-GW60BATDG20
Storage scales purely by stacking modules, up to 12 per system (max 6 per column) to 108 kWh, and GoodWe explicitly allows mixing capacities and old/new modules. The 6.0 and 9.0 kWh G20 modules are the >=10,000-cycle versions with integrated heating for winter charging.
GoodWe HCA G2 GW11K-HCA-20 EV charger
Item number: DLK-GOODWE-GW11KHCA20
The ESA user manual lists GoodWe AC charging piles as directly connectable. The 11 kW HCA G2 charges the car from PV surplus and shares the same SEMS+ app as the ESA, completing the home-energy package.
Optional components
GoodWe GMK330 smart meter (generator integration)
Item number: DLK-GOODWE-GMK330
Needed (GMK330 or GM330) when a backup generator should be controlled by the ESA and allowed to charge the battery, per the ESA user manual.
Approved pairings
GoodWe GW6.0-BAT-D-G20 (ESA battery module, 6.0 kWh)Item number DLK-GOODWE-GW60BATDG20GW6.0 / GW9.0-BAT-D-G20 modules; a single string stacks up to 6 (manual p69), 12 units system-wide. The number of parallel stacks is NOT printed - 12/6 would be an inference, so quote multi-stack designs conservatively.
GoodWe GW9.0-BAT-D-G20 (ESA battery module, 9.0 kWh)Item number DLK-GOODWE-GW90BATDG20GW6.0 / GW9.0-BAT-D-G20 modules; a single string stacks up to 6 (manual p69), 12 units system-wide. The number of parallel stacks is NOT printed - 12/6 would be an inference, so quote multi-stack designs conservatively.