GoodWe 20KW Ongrid Solar Inverter

Vendor: Growatt
Availability: In stock
Product Type: Solar Inverter

GoodWe GW20K-SDT-30 G3 20kW Three-Phase On-Grid Inverter delivers 98.5% efficiency with 150% DC oversizing, 110% AC overloading, and advanced safety features. Compact, reliable, and ideal for residential and small commercial solar systems.

300,000.00

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GoodWe GW20K-SDT-30 G3 – 20kW Three-Phase On-Grid Inverter

The GoodWe GW20K-SDT-30 G3 is a next-generation three-phase on-grid inverter designed to deliver reliable and efficient power for residential and small commercial solar systems. With 150% DC oversizing and 110% AC overloading, it ensures maximum energy yield while maintaining stable performance, even under heavy load conditions.

Compact and lightweight, this inverter is built for easy installation and long-term durability. It features a wide MPPT voltage range (140V–1000V) for flexible solar array designs, along with advanced safety functions to protect both the system and connected appliances.


Key Features

  • Wide Power Range: Supports installations from 8kW up to 30kW

  • High Capacity Utilization: 150% DC oversizing and 110% AC overloading

  • Nominal Power: 20kW with a maximum output of 22kW

  • Three-Phase Design: Optimized for residential blocks and small businesses

  • Lightweight Build: Simplifies handling and installation

  • Flexible Operation: Adjustable power factor (0.8 leading to 0.8 lagging)


Advanced Safety Features

  • PV String Monitoring: Real-time performance tracking

  • Anti-Islanding Protection: Safe disconnection during grid failures

  • Reverse Polarity Protection: Prevents damage from incorrect wiring

  • Residual Current Monitoring (RCM): Detects leakage to improve system safety


Best For

  • Large residential solar projects

  • Small commercial applications with three-phase demand

  • Systems needing high efficiency with scalable performance

  • Installations in diverse environments requiring robust protection and safety

Technical Specifications

SpecificationDetails
Rated Output Power20,000 W (20 kW)
Maximum DC Input Power26,000 W
Maximum DC Input Voltage1,000 V
MPPT Voltage Range200 V – 850 V
Start-up Voltage180 V
Nominal DC Input Voltage620 V
Number of MPPTs2
Number of Strings per MPPT2
Maximum Input Current per MPPT22 A
AC Output Voltage400 V (three-phase)
AC Output Frequency50/60 Hz
Maximum Output Current28.9 A
Maximum Efficiency98.4%
European Efficiency97.9%
Protection RatingIP65
Cooling MethodNatural convection
Dimensions (W × H × D)516 × 455 × 192 mm
Weight26 kg
Communication InterfacesRS485, Wi-Fi
Operating Temperature Range–25°C to +60°C
WarrantyTypically 5 years (extendable)