Deye SUN-15/18/20/22/23/25K-G05

18kW three phase string inverter with 98.6% efficiency and dual MPPT.

Models Covered: SUN-15K-G05, SUN-18K-G05, SUN-20K-G05, SUN-22K-G05, SUN-23K-G05, SUN-25K-G05

Manufacturer: Ningbo Deye Technology Co., Ltd. (Stock Code: 605117.SH)

Application: The Deye SUN-18K-G05 series delivers cutting-edge solar energy solutions for commercial installations. With 18kW 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.

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Technical Specifications

Parameter SUN-15K-G05SUN-18K-G05SUN-20K-G05SUN-22K-G05SUN-23K-G05SUN-25K-G05
PV String Input Data
Max PV Input Power 19.5 kW23.4 kW28.6 kW28.6 kW29.9 kW32.5 kW
Max PV / DC Voltage 1000 V—————
Max PV Input / Array Open Circuit Voltage 1000 V1100 V1100 V1100 V1100 V1100 V
Max PV Input Current 13+26 A26+26 A26+26 A26+26 A26+26 A26+26 A
MPPT Efficiency >99%
MPPT Voltage Range 200 V – 850 V200 V – 1000 V200 V – 1000 V200 V – 1000 V200 V – 1000 V200 V – 1000 V
MPPT Voltage Range at Full Load 480 V – 850 V500 V – 850 V500 V – 850 V550 V – 850 V550 V – 850 V550 V – 850 V
Number of MPP Trackers 2
Start-up Voltage 250 V
Max PV Short-Circuit Current 19.5+39 A39+39 A39+39 A39+39 A39+39 A39+39 A
MPPT Nominal Voltage 600 V
Electrical / AC Output Data
European Efficiency 98.0%
Max AC Apparent Power 16.5 kVA19.8 kVA22 kVA24.2 kVA25.3 kVA27.5 kVA
Max Efficiency 98.5%98.6%98.6%98.6%98.6%98.6%
Rated AC Power 15 kW18 kW20 kW22 kW23 kW25 kW
AC Grid Connection Type 3L+N+PE
Grid / AC Frequency 50Hz/45Hz-55Hz, 60Hz/55Hz-65Hz
Input Voltage Range 200 V – 850 V—————
Output Voltage Range 1.1 V – 4000.85 V0.85 V – 1.1 V0.85 V – 1.1 V0.85 V – 1.1 V0.85 V – 1.1 V0.85 V – 1.1 V
Rated AC Output Current 22.7/21.7 A27.3/26.1 A30.3/29 A33.4/31.9 A34.9/33.4 A37.9/36.2 A
THD / THDi <3%
Adjustable Power Factor Range 0.8 leading-0.8lagging
Max AC Output Current 25/23.9 A30/28.7 A33.3/31.9 36.7/35.1 A33.3/31.9 36.7/35.1 A38.4/36.7 A41.7/39.8 A
Protection Features
IP Rating IP65
AC/DC Surge Protection TYPEI|(DC),TYPEI|(AC)
Anti-Islanding Protection yes
Grid Monitoring yes—————
Ground Fault Monitoring yes—————
Over-Temperature / Thermal Protection yes
Overload Protection yes—————
Residual Current Monitoring Unit yes
Mechanical Data
Cooling Intelligent Air Cooling—————
Operating Conditions
Derating Start Temperature 45 °C—————
Noise Level <40 dB<50 dB<50 dB<50 dB<50 dB<50 dB
Operating Temperature -25 to 60 °C

Note: Specifications are based on the official Deye SUN-15/18/20/22/23/25K-G05 datasheet. Values may be subject to change; always verify against the latest manufacturer documentation before system design and procurement.

Availability & grid compliance in Morocco

Market Morocco
Grid authority / regulator ONEE Morocco
Quotation currency MAD
Support hours timezone Africa/Casablanca
Delivery & installation coverage Casablanca, Rabat, Marrakech, Tangier

Figures on this page are the manufacturer's own, measured at the test conditions the datasheet states — they do not change by country. What changes is the approval that has to be met before the unit is energised: in Morocco that is ONEE Morocco. Confirm the grid code, import requirements and any local certification with them, or with us, before you order.

Key Features & Technical Highlights

  • 98.5% Efficiency: Maximum energy conversion
  • Dual MPPT: Two independent trackers
  • Anti-PID: Protects PV module performance
  • VSG Support: Virtual Synchronous Generator
  • Multiple Monitoring: GPRS, WiFi, Bluetooth, 4G, LAN
  • Wide Temp Range: -25°C to 60°C operation
  • 98.6% Efficiency: Maximum energy conversion
  • Zero Export: Grid export management
  • IP65 Protection: Dust and water resistant
  • Multiple Comms: GPRS, WiFi, Bluetooth, 4G, LAN

Frequently Asked Questions

Is the DEYE SUN-15K-G05 suitable for the Middle East climate?

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.

What is the Anti-PID function?

The Anti-Potential Induced Degradation (PID) function protects PV modules from performance decline, extending their operational lifespan and maintaining high efficiency over time.

What monitoring options are available?

The inverter supports multiple monitoring options including GPRS, WiFi, Bluetooth, 4G, and LAN connectivity, plus RS485 and RS232 communication interfaces.

What is the MPPT voltage range?

The SUN-18K-G05 series operates with an MPPT voltage range of 200-1000V, providing flexibility in solar panel selection and system design.

Does it support zero export?

Yes! Zero export functionality allows you to manage energy consumption and comply with grid export limits, maximizing self-consumption.