Does the Deye 20kW inverter use high voltage batteries?

No, the SUN-20K-SG05LP3-EU-SM2 uses standard 40-60V (48V nominal) Lead-acid or Lithium-ion batteries, making it compatible with most standard battery banks.

What is the Smart Load function on the Deye Inverter?

The Smart Load function allows the 'Generator' port to be configured as an output. It powers non-essential loads (like water heaters) only when the battery state of charge (SOC) is high and there is excess solar power, preventing battery drain.

Can I parallel multiple Deye 16kW inverters?

Yes, these inverters support parallel operation for both residential and commercial scaling, allowing multiple units to work together to increase total power output.

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By Sona Brands

On 2, 2025

11,990,689 Views

Deye Three-Phase Hybrid Inverters in Zimbabwe: The Ultimate 14kW-20kW Power Solution

Sona Solar Zimbabwe brings you the heavyweights of energy independence: the Deye SUN-SG05LP3 series. Designed for large residential and commercial applications, these Three-Phase Hybrid Inverters (ranging from 14kW to 20kW) combine high-voltage PV input capability with standard 48V battery safety. This guide covers the full technical datasheets, wiring diagrams, and operation modes found in the user manual.

Affordable Solar Systems in Zimbabwe with price drops on inverters and batteries.

The Deye Advantage: High Power, Low Voltage Battery

48V Battery System (Safe & Compatible)

Unlike many high-capacity inverters that require expensive high-voltage batteries, this Deye series (SUN-14K to 20K) operates on standard 40-60V (48V nominal) Lead-acid or Lithium-ion batteries. This allows for massive battery banks using readily available and cost-effective lithium modules.

High Voltage PV Input (Up to 800V)

Maximize your solar harvest with a high DC input voltage range (160V-800V). The units feature 2 MPPT trackers with a "2+1" string configuration, allowing for significant solar array flexibility and efficiency (Max Efficiency >99%).

Smart Load & Generator Port

These inverters feature a dedicated "GEN" port that is multi-functional. It can be used for Diesel Generator input, as a Smart Load output (for non-essential loads when battery is full), or for AC Coupling to retrofit existing solar systems.

Touchscreen LCD Interface

The unit comes with a colorful, user-friendly touch LCD. It visualizes energy flow, battery SOC, and allows for easy configuration of settings like "Time of Use," "Zero Export to CT," and system work modes without needing a laptop.

Technical Datasheet (SUN-14K/16K/20K)

Performance Specifications

Comparison of the available models in the SG05LP3-EU-SM2 series.

Model	AC Output Power	Max Charging Current	Max PV Input Power	Max AC Pass-through
SUN-14K	14,000 W	260 A	21,000 W	46.8 A
SUN-15K	15,000 W	280 A	22,500 W	50 A
SUN-16K	16,000 W	300 A	24,000 W	53.4 A
SUN-18K	18,000 W	330 A	27,000 W	60 A
SUN-20K	20,000 W	350 A	30,000 W	66.8 A

*All models support 48V (40-60V range) Batteries.

Wiring & Application Diagrams

Parallel Operation

The Deye inverters support extensive parallel capabilities for scaling up commercial power. You can connect multiple units (Master and Slaves) via the Parallel CAN ports. The system supports 100% unbalanced output, meaning it can handle different loads on Phase L1, L2, and L3 independently.

Generator & Smart Load Wiring

The system wiring includes three distinct AC terminal blocks:

GRID: Connects to utility/ZESA. Requires a 100A breaker.
LOAD: Connects to your essential Backup Loads (UPS). Requires a 100A breaker.
GEN: A programmable port. It can trigger a diesel generator via dry contact (G-start) or power "Smart Loads" like geysers only when the battery is above a certain percentage.

Frequently Asked Questions

Is this a "High Voltage" battery inverter?

No. While it is a "High Power" (up to 20kW) and "High Voltage PV" (800V solar) inverter, this specific series (SG05LP3) uses Low Voltage (48V) batteries. This is advantageous as 48V Lithium batteries are widely available and safer to handle.

Can the Deye inverter run without batteries?

Yes. The manual indicates the system can work without a battery connected, using either PV or Grid power to supply loads. However, for backup during load shedding, a battery is required.

Does it support 3-Phase unbalanced loads?

Yes, the Deye SUN-20K series supports 100% unbalanced output. This means you do not need to perfectly balance your home or office lights and plugs across the three phases; the inverter manages the load difference automatically.

How do I monitor the system?

The inverter comes with a WiFi Plug (optional in some regions, usually standard) that connects to the Solarman or Deye Cloud app. This allows for remote monitoring of generation, battery status, and changing settings from your phone.

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Sona Solar Zimbabwe – Your Trusted Partner for Solar Energy Solutions

Sona Solar Zimbabwe provides premium Solar Panels, Lithium Batteries, Inverters, and complete Solar Systems for homes, businesses, and industries. We also specialize in expert Borehole Drilling Solutions and Solar-Powered Water Systems. Trust our experienced team for professional Solar installations in Harare, Marondera, Mutare, Chitungwiza, and across Zimbabwe, delivering reliable, efficient, and cost-effective renewable energy solutions.