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.

What is the Deye SUN-5K-G05P1-AU-AM2 inverter?
The Deye SUN-5K-G05P1-AU-AM2 is a 5kW single-phase grid-tied string inverter that converts DC power from rooftop solar panels into AC power for your home and the grid. It has two MPPT trackers, accepts up to 7.5kW of solar input, reaches 97.5% peak efficiency and starts generating from just 80V. At 7.7kg, it suits the typical 5kW NZ family-home solar system.

How much solar can I connect to the Deye 5kW grid-tied inverter?
The Deye 5kW grid-tied inverter accepts up to 7.5kW of solar panel input, a 1.5× ratio to its 5kW AC output. Panels connect across two MPPT trackers with one string each, within a 70–500V MPPT range and a 550V maximum PV voltage. The extra panel capacity captures more energy in mornings, evenings, overcast days and winter.

Why does the Deye SUN-5K-G05P1-AU-AM2 have two MPPT trackers?
Two independent MPPT trackers, each handling up to 18A, let the Deye SUN-5K-G05P1-AU-AM2 run panels on two roof orientations, tilt angles or shading conditions without one string holding back the other. A north- and west-facing array, or a chimney shading a few panels in the afternoon, can each run at its own peak.

What does the 80V start-up voltage mean?
The Deye SUN-5K-G05P1-AU-AM2 starts converting solar power once panel voltage reaches just 80V. The system switches on earlier each morning and keeps generating later each evening, which adds up to extra kWh over NZ’s shorter winter days.

Can I connect a battery to the Deye SUN-5K-G05P1-AU-AM2?
No, the Deye SUN-5K-G05P1-AU-AM2 is a grid-tied string inverter with no battery input. For a 5kW system with battery storage, the Deye SUN-5K-SG04LP1-AU 5kW single-phase hybrid inverter is the equivalent hybrid model.

Does the Deye 5kW grid-tied inverter work during a power cut?
No, the Deye 5kW grid-tied inverter has built-in anti-islanding protection, which shuts it down automatically when the grid goes down so it can’t feed power into lines that workers may be repairing. For backup power during outages, you need a hybrid inverter with battery storage.

Does the Deye SUN-5K-G05P1-AU-AM2 support zero export?
Yes, the Deye SUN-5K-G05P1-AU-AM2 supports Zero Export, which keeps all your solar generation inside the home and sends nothing back to the grid. That’s useful when buy-back rates are low or your lines company limits feed-in. You can also export surplus power normally when that suits you better.

What protection features does the Deye 5kW string inverter have?
The Deye 5kW string inverter has overcurrent, overvoltage, short-circuit, ground fault and anti-islanding protection as standard. Optional Anti-PID protection guards panels against Potential Induced Degradation, which matters in humid and coastal NZ conditions. Optional string-level intelligent monitoring flags underperformance or faults on individual strings.

What is VSG support on the Deye SUN-5K-G05P1-AU-AM2?
VSG (Virtual Synchronous Generator) support helps the Deye SUN-5K-G05P1-AU-AM2 interact smoothly with the grid as conditions change, maintaining stability and grid compliance.

How efficient is the Deye SUN-5K-G05P1-AU-AM2?
The Deye SUN-5K-G05P1-AU-AM2 has a maximum efficiency of 97.5%, a Euro efficiency of 97.0% and an MPPT efficiency above 99%, so very little solar energy is lost in the DC-to-AC conversion.

How big and heavy is the Deye 5kW grid-tied inverter?
The Deye 5kW grid-tied inverter weighs 7.7kg and measures 305 × 280 × 180mm. It mounts easily on a garage wall, beside a switchboard or in a utility cupboard.

Should I choose the Deye 5kW or 3.6kW single-phase string inverter?
The Deye SUN-5K-G05P1-AU-AM2 offers 5kW of AC output, up to 7.5kW of solar input and 18A per MPPT tracker. The Deye SUN-3.6K-G04-AU offers 3.6kW of output, 5.4kW of solar input and 13A per tracker. Both have two MPPT trackers, an 80V start-up voltage, a 70–500V MPPT range, 97.5% peak efficiency and zero-export capability. The 5kW model suits the standard NZ family-home array, and the 3.6kW suits smaller systems.