98.6% Efficiency
Maximum energy conversion

20kW three phase string inverter with 98.6% efficiency and dual MPPT.
The Deye SUN-20K-G05 series delivers cutting-edge solar energy solutions for commercial installations. With 20kW power range, 98.6% max efficiency, 98% European efficiency, dual MPPT trackers, 200-1000V MPPT range, zero export and VSG support, IP65 protection, and comprehensive monitoring options, it's the top choice for both residential and commercial solar installations.
| DC Injection Current | <0.5%In |
|---|---|
| MPPT Voltage Range(V) | 200-1000 |
| Max. Input Short Circuit Current (A) | 39+39 |
| Max. Operating PV Input Current(A) | 26+26 |
| Max. Output Fault Current (A) | 58 |
| Max. PV Input Power(kW) | 26 |
| Max. PV Input Voltage(V) | 1100 |
| Max.AC Output Current (A) | 33.3/31.9 |
| No. of MPP Trackers/No. of Strings MPP Tracker | 2/2+2 |
| PV input voltage range(V) | 250-1100 |
| Rated AC Output Active Power(kW) | 20 |
| Rated AC Output current (A) | 30.3/29 |
| Rated PV Input Voltage(V) | 600 |
| Start-up Voltage(V) | 250 |
| Type | String Inverter |
| Rated output voltage | 220/380,230/400 |
| Max PV Voltage | 1100 |
| No. of Strings MPP Tracker | 2+2 |
| No. of MPP Trackers/ No. of Strings MPP Tracker | 2/2+2 |
| Anti-islanding protection | yes |
| Communication Interface | RS485/RS232 |
| Euro Efficiency | 98.0% |
| Full Load MPPT Voltage Range | 500-850 V |
| Grid Connection Form | 3L+N+PE |
| Grid Regulation | IECUNE61727,217002,IEC62116,OVE-RichtlinieCEI0-21, ENR25,50549,G99,VDE-AR-NNRS097,RD4105140, |
| Inverter Topology | Non-Isolated |
| MPPT Efficiency | >99% |
| MPPT Voltage Range | 200-1000 V |
| Max. Input Short Circuit Current | 39+39 A |
| Max. Inverter Backfeed Current To the Array | 0 |
| Max. Operating PV Input Current | 26+26 A |
| Max. Output Fault Current | 58 A |
| Max. PV Input Voltage | 1100 V |
| Max.AC Output Apparent Power | 22 kVA |
| Max.Efficiency | 98.5% |
| Monitor Mode | GPRS/WIFI/Bluetooth/4G/LAN(optional) |
| Over Voltage Category | OVC II(DC),OVC III(AC) |
| Power Factor Adjustment Range | 0.8 leading-0.8lagging |
| Rated AC Output Active Power | 20 kW |
| Rated AC Output current | 30.3/29 A |
| Rated Output Grid Frequency/range | 50Hz/45Hz-55Hz, 60Hz/55Hz-65Hz HZ |
| Rated Output voltage/range | 220/380,230/400 0.85Un-1.1Un V |
| Rated PV Input Voltage | 600 V |
| Residual Current Detection | yes |
| Safety EMC/Standard | IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 |
| Start-up Voltage | 250 V |
| Thermal Protection | yes |
| Total Current Harmonic Distortion THDi | <3% |
| Max. PV Input Power | 28.6 kW |
| Max.AC Output Current | 33.3/31.9 36.7/35.1 A |
| Surge Protection Level | TYPE II(DC), TYPE II(AC) |
| Rated AC Power | 20 kW |
| MPPT Trackers | 2 |
| European Efficiency | 98.0 % |
| Max Apparent Power (25K) | 22 kVA |
| Type Of Cooling | Intelligent air cooling |
|---|---|
| Ingress Protection(IP) Rating | IP 65 |
| IP Rating | IP65 |
| Noise Level | <50 dB |
| Noise | ≤ 50 dB |
|---|---|
| Operating Temperature Range | -25℃ to +60℃,>45℃ derating °C |
| Permissible Altitude | 4000 m |
| Permissible Ambient Humidity | 0-100% |
| Operating Temperature | -25 to 60 °C |
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Read: SEC Net-Metering in Saudi Arabia: How to Apply for Rooftop Solar Approval (2026) →Yes. DEYE inverters are rated for high ambient temperatures and dusty conditions common across the Gulf, North Africa and the wider MEA region, with IP-rated enclosures for outdoor installation in shaded areas.
The SUN-20K-G05 series operates with an MPPT voltage range of 200-1000V, providing flexibility in solar panel selection and system design.
Yes! Zero export functionality allows you to manage energy consumption and comply with grid export limits, maximizing self-consumption.