• Rated AC Power Output: 20.0 kW three-phase output engineered for commercial and high-capacity residential installations.
• High Efficiency Performance: Delivers up to 98.5% maximum efficiency and 98.2% European efficiency rating.
• Dual MPPT Architecture: Features 2 independent MPPT trackers with 32A / 22A max input current capability (2/1 string split).
• High PV Oversizing & Overloading: Supports up to 150% DC input oversizing and 110% AC output overloading (up to 22.0 kW peak).
• Low Start-Up Voltage: Activates at 160V with an ultra-wide 140V–1000V MPPT operating range.
• Smart Fan Cooling: Integrated intelligent thermal management for long-term continuous high-load operation.
• Heavy-Duty Protection: IP66 ingress protection rating with integrated DC/AC surge protection and optional AFCI.
The GoodWe GW20K-SDT-30 (SDT G3 Series) is a high-performance 20kW three-phase on-grid solar inverter engineered for commercial buildings, industrial rooftops, and large-scale residential PV systems. Featuring dual independent MPPT trackers (supporting a 2/1 string configuration) and handling up to 32A / 22A input current, this inverter effortlessly accommodates modern high-wattage solar modules. Built with up to 150% DC input oversizing and 110% AC output overloading capability (delivering up to 22.0 kW peak active power output), the GW20K-SDT-30 maximizes overall photovoltaic generation even under variable weather conditions.
| Model Name | GoodWe GW20K-SDT-30 (Code: 1012) |
| Inverter Series & Topology | SDT G3 Series / Three Phase On-Grid (Non-isolated) |
| Max. Input Voltage | 1100 V |
| MPPT Operating Voltage Range | 140 V – 1000 V |
| Start-up Voltage | 160 V |
| Nominal Input Voltage | 600 V |
| Max. Input Current per MPPT | 32 A / 22 A |
| Max. Short Circuit Current per MPPT | 40.0 A / 27.5 A |
| Number of MPPTs / Strings per MPPT | 2 / (2 / 1) |
| Nominal AC Output Power | 20.0 kW (20000 W) |
| Max. AC Active Power | 22.0 kW (22000 W) |
| Max. AC Apparent Power | 22.0 kVA (22000 VA) |
| Nominal Output Voltage | 220/380 V, 230/400 V, 240/415 V (3L/N/PE or 3L/PE) |
| Nominal AC Grid Frequency | 50 / 60 Hz |
| Max. Output Current | 33.3 A |
| Max. Efficiency / European Efficiency | 98.5% / 98.2% |
| Cooling Method | Smart Fan Cooling |
| Noise Emission | < 45 dB |
| Ingress Protection Rating | IP66 Certified Dust & Waterproof |
| Operating Temperature Range | -30°C to +60°C |
| Dimensions (W x H x D) | 530 x 413 x 227 mm |
| Weight | 17.1 kg |
| User Interface & Communication | LED / LCD (Optional) / WLAN + APP (RS485, LAN, Bluetooth, 4G Optional) |
| Surge Protection (DC / AC) | Type III (Type II Optional) |
| DC / AC Connectors | MC4 (4–6 mm²) / OT Terminal (Max 25 mm²) |
Verify string sizing parameters on the official GoodWe Solar Official Portal before executing installation setup.
The GoodWe GW20K-SDT-30 offers exceptional performance tailored for commercial three-phase solar networks. Equipped with two independent MPP trackers supporting a 3-string total input, it allows system integrators to configure arrays across different roof angles and shading areas. Its 150% DC input oversizing threshold enables over-paneling, while 110% AC output overloading delivers up to 22.0 kW active power during peak solar generation hours.
Designed for industrial reliability, the inverter utilizes Smart Fan Cooling to maintain optimal internal operating temperatures under heavy continuous electrical loads. The heavy-duty IP66-rated chassis delivers complete weatherproofing against dust and water jets. Built-in multi-protocol communication (Wi-Fi, Bluetooth, RS485, Modbus TCP/RTU) enables seamless connection to the GoodWe SEMS Portal for remote performance tracking, export power control, and preventive diagnostics.
Q1: What is the maximum efficiency of the GoodWe GW20K-SDT-30?
A: The GW20K-SDT-30 achieves a peak conversion efficiency of 98.5% and a European efficiency rating of 98.2%.
Q2: What is the start-up voltage and MPPT operating range for this 20kW inverter?
A: It features a start-up voltage of 160V and an MPPT operating voltage range from 140V to 1000V.
Q3: What is the maximum AC active power output capability?
A: With its 110% AC overloading capability, the unit can output a maximum active power of 22.0 kW (22000 W).
Q4: Is the GW20K-SDT-30 suitable for outdoor installation?
A: Yes, it features an IP66 ingress protection rating, making it completely protected against heavy rain and dust.
Q5: What are the physical dimensions and weight of this unit?
A: The inverter measures 530 x 413 x 227 mm and weighs 17.1 kg.
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