The GoodWe ET 100 kW (GW100K-ET) three-phase hybrid inverter belongs to the ET 75-100 kW series, dedicated to commercial & industrial (C&I) use. This DC-coupled inverter drives photovoltaic generation, high-voltage storage and backup at site scale, for self-consumption, peak shaving, time-of-use management and grid support.
Why the ET C&I series?
Compact and powerful, the ET 75-100 kW series covers the needs of large sites: industrial parks, farms and commercial complexes. Its DC-coupled architecture maximises the efficiency between the photovoltaic array and the battery, while its 8 MPPT allow PV oversizing of up to 200 %, i.e. up to 200 kWp connected for 100 kW of AC power. Two independent battery inputs provide real configuration flexibility and allow charging and discharging at 1C with the BAT100 modules, without power throttling.
Designed for backup, the ET 100 kW delivers up to 200 A on the backup output and switches to island mode in less than 4 ms via the static transfer switch (STS), guaranteeing an uninterrupted supply to critical loads. It accepts 110 % of unbalanced load between phases and tolerates 150 % AC overload for 10 seconds to absorb inrush currents when starting motors. Rugged, it operates from -35 to +60 °C, up to 4,000 m of altitude, with an IP66 rating and a C4 anti-corrosion class suited to harsh and coastal environments.
- 8 MPPT and up to 200 kWp of PV input (200 % oversizing)
- Two independent battery inputs, up to 220 A charge / discharge
- Compatible with the GoodWe BAT100 high-voltage battery (charge and discharge at 1C)
- Backup up to 200 A with UPS changeover in less than 4 ms (STS unit)
- 110 % unbalanced load tolerance and 150 % AC overload for 10 s
- Generator start/stop control via DI/DO interfaces
Technical specifications
| Characteristic |
GW100K-ET (ET 100 kW) |
| Rated AC power | 100 kW |
| Max apparent power (to grid) | 110 kVA |
| Three-phase output | 230 / 400 V, 3L / N / PE |
| Rated grid current (at 400 Vac) | 144.4 A |
| Max PV power | 200 kWp |
| Number of MPPT | 8 (2 strings / MPPT) |
| Max PV voltage | 1000 V |
| Battery (type / voltage) | HV Li-Ion, 300-800 V (nominal 600 V) |
| Battery inputs | 2 (110 A × 2 charge / discharge) |
| Max / European efficiency | 98.1 % / 97.7 % |
| On/off-grid changeover | < 4 ms (with STS) |
| Protection rating | IP66 (C4 anti-corrosion) |
| Operating temperature | -35 to +60 °C |
| Dimensions (W × H × D) | 995 × 758 × 358 mm |
| Weight | 97 kg |
Modes & certifications
The ET C&I series manages several intelligent modes to optimise the system according to the context: self-consumption, peak shaving, time-of-use and grid support. On the safety side, the inverter integrates PV insulation detection, residual current monitoring, anti-islanding, overcurrent, overvoltage and AC short-circuit protections, a DC switch and a Type II DC surge protection (Type I + II as an option). Intelligent fan cooling, altitude up to 4,000 m, RS485, WiFi + LAN + Bluetooth and CAN-to-BMS communication.
Paired with the GoodWe BAT Series storage system and the static transfer switch (STS), the ET 100 kW forms an all-in-one C&I solution. SINES Export, GoodWe distributor and wholesaler, supplies the complete inverter + storage system, validates its sizing and supports professionals worldwide. Also discover our range of solar inverters.
