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The GoodWe GW12K-ETA-G20 12 kW three-phase hybrid inverter from the ESA series is an integrated all-in-one energy storage system. It combines an inverter, LiFePO4 battery, and smart energy management, supporting whole-home backup power as well as on-grid and off-grid operation.
The GoodWe GW12K-ETA-G20 is a three-phase hybrid inverter with a rated power of 12 kW, part of the integrated GoodWe ESA energy storage system (5–30 kW / 5–108 kWh). The prefabricated, modular design combines the inverter and battery into a single unit ready for quick installation. The system supports 5, 6, 8, and 9 kWh battery modules – up to 12 modules, yielding a storage capacity of up to 108 kWh. With AI-supported smart energy management, a dual-port design for whole-home backup, and seamless switching to backup power in under 4 ms, the GW12K-ETA-G20 is ideal for residential and small commercial applications.
| Rated AC power | 12 kW |
| Inverter type | Hybrid (all-in-one) |
| Number of phases | 3 (three-phase) |
| Max. battery charging / discharging power | 12.0 / 13.2 kW |
| Max. PV input power | 24 kW |
| Max. PV voltage | 1000 V |
| MPPT voltage range | 120–950 V |
| Start-up PV voltage | 150 V |
| Nominal battery voltage | 750 V |
| Battery cell type | LFP (LiFePO4) |
| AC output voltage | 230 / 400 V, 3L/N/PE |
| Max. efficiency | 98.1% |
| European efficiency | 97.2% |
| On-/off-grid switching time | <4 ms |
| Cooling | Smart fan |
| Operating temperature range | -35–+60°C |
| Protection rating | IP66 |
| Weight | 34 kg |
| Dimensions (W × H × D) | 800 × 340 × 270 mm |
Goodwe GW12K-ETA-G20 — 12 kW three-phase hybrid inverter from the all-in-one series — B2B wholesale prices for installers and contractors. Check availability and terms of cooperation: contact us.
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