Deye 5KW Grid-tied Single Phase String Inverter 2 MPPT SUN-5K-G05P1-AU-AM2

Deye SUN-5K-G05P1-AU-AM2 | 5kW Grid-Tied Single Phase String Inverter · 2 MPPT

The 5kW sweet spot for NZ residential solar

The Deye SUN-5K-G05P1-AU-AM2 is a 5kW single-phase string inverter designed around the most common residential solar system size in New Zealand. It takes up to 7.5kW of panel input across two independent MPPT trackers, converts it at 97.5% peak efficiency, and starts generating from just 80V — earlier in the morning and later in the evening than most inverters bother. At 7.7kg and barely larger than a laptop bag, it mounts on a garage wall and gets out of the way.

For a typical NZ family home with a 5kW rooftop array, this is the inverter that matches the system size most installers recommend efficient, compact, and built with the features that matter day to day.

Dual MPPT two trackers for imperfect roofs

Two independent MPPT channels (1+1 strings, 18A + 18A max input each) let you run panels across two different roof orientations, tilt angles, or shading conditions without one string compromising the other. That’s the real-world reality of most NZ homes panels on the north face and the west, or a chimney shading three panels in the afternoon. Dual MPPT handles it cleanly.

7.5kW PV input oversize for more yield

The inverter accepts up to 7.5kW of solar input on a 5kW AC output a 1.5× DC oversizing ratio. That extra panel capacity means the system captures more energy during the hours when panels aren’t producing at full tilt: mornings, evenings, overcast days, and winter. Over a year of NZ weather, the additional generation from oversizing is where the payback accelerates.

Electrical headroom:

• Max PV voltage: 550V
• MPPT range: 70–500V
• Start-up voltage: 80V

80V start-up first light to last light

An 80V start-up voltage is unusually low for a residential inverter. It means the system switches on earlier each morning and keeps converting later each evening stretching the generation window at both ends of the day. On NZ’s shorter winter days, those extra minutes of production at dawn and dusk compound into real additional kWh over the season.

97.5% peak efficiency

At 97.5% maximum efficiency (97.0% Euro, >99% MPPT tracking), the SUN-5K-G05P1-AU-AM2 wastes almost nothing in the DC-to-AC conversion. For a 5kW residential inverter, that’s a strong figure and over 20–25 years of daily operation, even a small efficiency advantage over a cheaper inverter translates into meaningful savings.

Zero Export and grid intelligence

Zero Export lets you keep all your solar generation inside the house, drawing nothing from the grid and sending nothing back. Useful when buy-back rates don’t justify exporting, or when your lines company limits feed-in. VSG (Virtual Synchronous Generator) support helps the inverter interact smoothly with the grid under changing conditions, maintaining stability and compliance.

You control the energy flow: consume everything at home, export the surplus, or lock it to zero — the inverter adapts.

Protection that looks after your panels

• Optional Anti-PID protection — guards panels against Potential Induced Degradation, a gradual efficiency loss that can develop over years, particularly in humid or coastal NZ conditions
• Optional string-level intelligent monitoring — visibility down to each individual string, catching underperformance or faults before they cost you production
• Built-in safety — overcurrent, overvoltage, short-circuit, ground fault, and anti-islanding protection as standard

7.7kg and compac mounts anywhere

At 7.7kg and just 305 × 280 × 180mm, this inverter is one of the lightest in its class. It fits cleanly on a garage wall, beside a switchboard, or in a utility cupboard no reinforcement, no dedicated space, no visual impact.

Specifications

Ideal for

• The typical NZ residential solar install — 5kW is the most common family-home system size
• Multi-orientation roofs with panels on two faces
• Homes wanting to maximise self-consumption and control export
• New builds and retrofits where compact, lightweight hardware is preferred
• DC-oversized arrays (up to 7.5kW of panels on a 5kW inverter)
• Installers who want a reliable, feature-rich residential inverter that’s fast to mount

5kW or 6kW — which Deye inverter?

The SUN-5K and SUN-6K share the same body, features, and efficiency the difference is output capacity:

• 5kW (this model): sized for a standard NZ family-home array, 7.5kW PV max
• 6kW: for larger arrays or higher consumption homes, 9kW PV max

Both weigh 7.7kg and measure identically. Choose based on your array size and how much AC output you need — your installer will recommend based on your panels and consumption.

The smart core of a home solar system

The SUN-5K-G05P1-AU-AM2 does exactly what a residential inverter should: converts efficiently, handles real-world roof conditions, protects your panels, and stays out of the way. For help sizing the right inverter for your home system, talk to the Cybotix Energy team we’ll match it to your panels, your roof, and your power goals.