GoodWe GW15K-ET-20 G2 AFCI
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Technical specifications
GoodWe GW15K-ET-20 – 15 kW Hybrid Inverter with 3 MPPT and Maximum Efficiency
The GoodWe GW15K-ET-20 is the most powerful model in the ET G2 series of hybrid inverters, offering a nominal power of 15 kW and three independent MPPTs, making it an ideal solution for large photovoltaic installations. The device is designed for large households, multi-family buildings, and commercial facilities where reliability, maximum self-consumption, and full integration with energy storage are required.
Thanks to the backup power function (UPS), the inverter ensures uninterrupted operation of systems even during grid failures — delivering up to 18 kVA for 60 seconds. Support for advanced operating modes and integration with SG Ready-compatible devices allow dynamic energy consumption management and cost optimization.
Downloads
- Other
- Certificate IEC 63027 GW(6-15)K-ET-20 EN.pdf
File size: 1 MB
- Certificate IEC62109 EN62109 CE LVD GW(6-15)K-ET-20 EN.pdf
File size: 2 MB
- Certyfikat NC-RfG GW(6-15)K-ET-20 PL_1.pdf
File size: 13 MB
- Communications Module Compatibility Sheet GW(6-15)K-ET-20 EN.pdf
File size: 1 MB
- Datasheet GW(6-15)K-ET-20 EN.pdf
File size: 385 KB
- Description of the communication port GW(6-15)K-ET-20 EN.pdf
File size: 6 MB
- Inverter compatible energy storage units GW(6-15)K-ET-20 EN.pdf
File size: 338 KB
- Shortened installation manual GW(6-15)K-ET-20 EN.pdf
File size: 14 MB
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Variants
Product description
GoodWe GW15K-ET-20 – 15 kW Hybrid Inverter with 3 MPPT and Maximum Efficiency
The GoodWe GW15K-ET-20 is the most powerful model in the ET G2 series of hybrid inverters, offering a nominal power of 15 kW and three independent MPPTs, making it an ideal solution for large photovoltaic installations. The device is designed for large households, multi-family buildings, and commercial facilities where reliability, maximum self-consumption, and full integration with energy storage are required.
Thanks to the backup power function (UPS), the inverter ensures uninterrupted operation of systems even during grid failures — delivering up to 18 kVA for 60 seconds. Support for advanced operating modes and integration with SG Ready-compatible devices allow dynamic energy consumption management and cost optimization.
Advantages and Features:
Highest power in the series – 15 kW, ideal for large installations
Three independent MPPTs – efficient operation with various PV configurations
Backup power up to 18 kVA
Support for high-voltage lithium-ion batteries (150–720 V)
Built-in Smart Meter and full integration with BMS systems
Communication: WiFi, LAN, Bluetooth, RS485, CAN
Natural cooling, quiet operation <45 dB
AC/DC protections, AFCI, surge and overcurrent protection
Technical Specifications (Key Parameters):
Inverter type: Hybrid, three-phase
AC output power: 15,000 W
Number of MPPTs: 3
Max efficiency: 98.2%
European efficiency: 97.5%
Battery voltage range: 150 – 720 V
Max charging/discharging power: 24,000 W / 16,500 W
Max PV power: 24,000 W
MPPT voltage range: 120 – 850 V
Nominal input voltage: 620 V
Nominal AC output voltage: 400 / 380 V
Max AC output current: 21.7 A
Backup power (UPS): 15,000 VA (up to 18,000 VA for 60 seconds)
Night consumption: <15 W
Dimensions: 496 × 460 × 221 mm
Weight: 25 kg
Noise level: <45 dB
Protection rating: IP66
Topology: Non-isolated
The GoodWe GW15K-ET-20 is an excellent choice for large installations where power, stability, reliability, and advanced energy management capabilities matter. Thanks to its specifications, it is suitable for modern homes as well as commercial applications.
