Description
Furniture-grade single-column integration with internal busbars.
GoodWe ESA GW8K-ETA-G20 is an 8 kW three-phase All-in-One hybrid inverter unit with 16 kWp solar intake and 63 A heavy-duty grid bypass, engineered to stack cable-free atop BAT-D-G20 high-voltage battery modules.
Cable-Free Modular Tower Stacking
Mounts directly onto BAT-D-G20 battery bricks with internal busbars, eliminating wall brackets and exposed DC conduits.
16,000 W Solar PV Input (200% Oversizing)
Double solar intake ensures rapid battery charging and domestic self-consumption even on overcast winter days.
63 A High-Current Grid Bypass
Heavy-duty internal bypass handles large household power surges and fast EV charging without tripping.
Balanced Three-Phase 400 V Output
Supplies clean, symmetrical power across all three lines to eliminate grid phase-unbalance penalties.
More product details
Traditional hybrid installations require wall-mounting an inverter, floor-standing a battery, and running multiple high-voltage DC conduits and communication cables between them. The ESA G20 integrates everything into a single vertical column.
- Internal push-in busbars pass high-voltage power and communication directly between inverter and battery modules.
- Eliminates exposed high-voltage DC wiring on garage and utility room walls, maximizing residential safety.
- Modular interlocking design cuts mechanical and electrical on-site installation labor in half.
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High-current grid pass-through with whole-home emergency power.
Featuring a heavy-duty 63 A internal bypass, the GW8K-ETA-G20 carries high domestic current demands without bottlenecking main service lines, while providing sub-10 ms automatic backup power. 63 A bypass capacity allows high-draw domestic equipment (EV wallboxes, heat pumps) to run on main lines without tripping. 16,000 W PV intake captures extensive daytime solar generation, charging battery bricks at full speed. IP66 cast-aluminum casing certified for clean indoor or sheltered outdoor installations (-35 to +60 °C).
Runs 8.8 kW continuous battery output
Internal power electronics support 8.0 kW continuous charging and 8.8 kW discharging across a 700 to 950 V battery window.
Fits 1000 V solar strings across 3 trackers
Three independent MPPT inputs accept 21 A string current and 26 A short-circuit current up to 1000 V maximum DC voltage.
Stands outdoors in sealed IP66 housing
The rugged IP66 enclosure operates quietly at 30 dB under 25 C ambient temperatures with integrated smart fan management.
Technical data
Consolidated energy management combining high-capacity solar harvesting with cable-free battery integration.
16 kWp solar intake in a modular three-phase All-in-One tower with 63 A grid bypass.
Designed as the top power stage for GoodWe's flagship ESA G20 modular column, the GW8K-ETA-G20 combines an 8 kW three-phase hybrid inverter with 63 A grid pass-through capability. It stacks directly over high-density BAT-D-G20 battery packs, delivering furniture-grade aesthetic integration while absorbing up to 16,000 Wp of rooftop solar.
- Continuous 3-Phase Power
- 8,000 VA
- 200% Solar DC Intake
- 16,000 Wp
- Heavy-Duty Grid Bypass
- 63 A
- External DC Cables
- Zero
Inverter: AC Output & Backup
- Rated / max. power
- 8 kW rated and max (GW8K-ETA-G20). Family: 8 / 10 / 12 / 15 kW in this catalogueseries spans 5-30 kW
- Rated current at 400 V
- 11.6 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
- 8 kVA
- Backup max. apparent power (off-grid)
- 8.8 kVA continuous (16.0 kVA for 10 s)
- Backup max. current (off-grid)
- 18.2 A
- Max. unbalanced single-phase output
- 4 kW on one phase (GW8K-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
- 16 kW (200% oversizing vs. 8 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
- 3 MPPTs, 1 string per MPPT
- Max. MPPT current / short-circuit current
- 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
- 8.0 kW / 8.8 kW (GW8K-ETA-G20)
- Max. continuous charge / discharge current
- 10.7 A / 11.8 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
- 98.0%
- European efficiency
- 97.1%
- 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 GW8K-ETA-G20 (8 kW three-phase all-in-one) belongs in, what to verify before quoting, and when another model is the better pick.
Modern Single-Family Homes (10–14 kWp PV) Seeking Clean Aesthetic Integration
Homeowners who reject industrial-looking wall clutter and demand a sleek, furniture-grade energy storage tower in their garage or utility room.
Stacks inverter and batteries into a single clean column occupying just 0.25 m² of floor space, with zero visible DC wiring.
- Confirm this model against the adjacent rating in the same family
Documents
GoodWe ESA Series 5-30kW Datasheet (EN)Product questions
What battery modules are compatible with the ESA GW8K-ETA-G20 inverter?
Exclusively compatible with GoodWe GW6.0-BAT-D-G20 and GW9.0-BAT-D-G20 battery packs. The ESA G20 series is an integrated All-in-One architecture. The inverter unit stacks directly onto GW6.0-BAT-D-G20 (6.0 kWh) or GW9.0-BAT-D-G20 (9.0 kWh) battery modules using internal busbar connectors. It cannot be paired with standalone Lynx Home F or Lynx D batteries.
What does the 63 A grid bypass rating mean in practical installation?
Whole-home grid pass-through without external bypass switchgear. The inverter's internal bypass contactor can continuously carry up to 63 A per phase from the utility grid. This allows your main household distribution panel to be wired directly through the inverter's backup switch without risking overload trips when high-power appliances (electric vehicle chargers, ovens, heat pumps) run simultaneously while grid-connected.
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.