Deye 12kW Single Phase 3 MPPT Hybrid Inverter SUN-12K-SG02LP1-AU

Deye SUN-12K-SG02LP1-AU-AM3 | 12kW Single Phase Hybrid Inverter 3 MPPT

12kW of hybrid intelligence solar, battery, and grid in one box

The Deye Single Phase Hybrid Inverter 3 MPPT is a 12kW single-phase hybrid inverter that manages your entire home energy system from a single unit: solar in, battery storage, grid interaction, and backup all controlled through three independent MPPT channels and a battery interface that pushes 250A of charge and discharge current. It accepts up to 24kW of PV input, supports parallel operation up to 16 units, and handles both on-grid and off-grid modes.

For NZ homes and businesses building serious solar-plus-storage systems, this is the inverter that ties everything together panels, batteries, grid, and backup without needing separate boxes for each job.

Triple MPPT three trackers for complex roofs

Three independent MPP trackers (2+2+2 strings) optimise six strings of panels simultaneously, each tracking within a 150–425V MPPT window at up to 99.9% MPPT efficiency. That means panels across three different roof faces, tilt angles, or shading conditions all run at their own peak without dragging each other down.

Most residential inverters offer one or two trackers. Three gives you the flexibility to cover a full NZ roof  north, east, and west faces without efficiency compromise, and without needing multiple inverters.

24kW of PV input serious oversizing headroom

The inverter accepts up to 24,000W of solar panel input a 2:1 DC-to-AC ratio on a 12kW inverter. That massive oversizing headroom captures more energy during the morning, evening, and cloudy periods when panels run below rated output. In practice, more panels on the roof means more kWh into your battery and your home, even on mediocre sun days.

97.6% peak efficiency

At 97.6% maximum conversion efficiency, the SUN-12K wastes almost nothing turning your solar DC into usable AC. For a hybrid inverter managing solar, battery, and grid flows simultaneously, that’s a strong figure and over a decade of daily operation, every fraction of a percent compounds into real savings.

Battery-ready with 250A charge/discharge

This is a hybrid inverter, not just a solar inverter it’s built to manage battery storage as a core function:

• Supports lead-acid and lithium-ion (LV) batteries — flexibility to match your battery choice
• Self-adapting BMS communication — the inverter talks to your battery’s management system automatically
• 250A max charge current / 250A max discharge — serious throughput for fast charging and high-draw discharge
• Multiple batteries in parallel — scale your storage as needs grow
• 6 custom time periods for charge/discharge scheduling — chase off-peak tariffs, maximise self-consumption, or prioritise backup reserve
• Battery voltage range: 40–60V

The scheduling capability is where the smart energy management happens: charge your batteries from solar during the day, discharge during evening peak pricing, and keep a reserve for overnight backup all on a timetable you set.

Scales to 16 units in parallel

Need more than 12kW? Connect up to 16 SUN-12K units in parallel for both on-grid and off-grid operation scaling the system to 192kW for larger homes, commercial sites, or multi-building setups. That parallel capability means you start with one inverter and grow without replacing it.

AC-coupling for existing solar systems

Already have a solar system with a separate inverter? The SUN-12K supports AC-coupling, letting you add battery storage and hybrid management to your existing setup without ripping out what’s already installed. Retrofit, don’t replace a practical upgrade path for homes that went solar before batteries were mainstream.

Generator and diesel backup

The inverter can store energy from a diesel or petrol generator, charging batteries when both solar and grid are unavailable. For off-grid NZ properties or sites where outages stretch beyond what solar and battery alone can cover, generator integration adds an extra layer of resilience.

IP65 install it indoors or out

An IP65-rated enclosure seals the inverter against dust and water jets, so it installs confidently outdoors on an exterior wall, in a carport, or in a garage. No need for a dedicated indoor space or a separate weatherproof enclosure.

Colour touch LCD for real-time control

A full-colour touch LCD on the front panel gives you real-time monitoring and system control without pulling out a phone check generation, battery state, grid flow, and adjust settings at a glance. At 35.6kg in a 420 × 670 × 233mm cabinet, it mounts cleanly on a standard wall.

Specifications

Ideal for

• Large NZ residential solar-plus-storage — 12kW covers high-consumption homes with heat pumps, EV charging, and multiple circuits
• Battery-first energy management — 250A throughput and 6 time-of-use schedules for serious self-consumption optimisation
• Multi-orientation roofs — three MPPT channels handle north/east/west panels independently
• Retrofitting batteries onto existing solar — AC-coupling adds storage without replacing your current inverter
• Off-grid and hybrid off-grid — generator integration plus battery plus solar for complete independence
• Scalable commercial and multi-unit — parallel up to 16 inverters for larger sites

Why this inverter?

• 3 MPPT — more trackers, more flexibility, more yield from imperfect roofs
• 24kW PV headroom — massive oversizing for maximum annual generation
• 250A battery throughput — fast charge, high discharge, real hybrid performance
• 16-unit parallel — scales from one home to a commercial site
• AC-coupling — retrofits onto existing solar without replacing gear
• IP65 — outdoor-rated, no enclosure needed
• Generator input — backup when sun and grid both fail

For help specifying the right hybrid inverter for your solar-plus-battery system, talk to the Cybotix Energy team we’ll match the inverter to your panels, your batteries, and your energy goals.

What is the Deye SUN-12K-SG02LP1-AU hybrid inverter?
The Deye SUN-12K-SG02LP1-AU is a 12kW single-phase hybrid solar inverter that manages solar panels, battery storage, grid power and backup from a single unit. It has three independent MPPT trackers, supports 48V low-voltage lead-acid and lithium-ion batteries with up to 250A of charge and discharge current, and works in both on-grid and off-grid modes. It suits high-consumption NZ homes and businesses building a solar-plus-storage system.

How much solar can I connect to the Deye 12kW single-phase hybrid inverter?
The Deye 12kW single-phase hybrid inverter supports solar panel arrays of up to 24,000W, a 2:1 ratio to its 12kW AC output. Panels connect across three MPPT trackers with a 2+2+2 string configuration and a 150–425V MPPT voltage range. This oversizing headroom captures more energy in the morning, evening and on cloudy days, when panels produce below their rated output.

Why does the Deye SUN-12K-SG02LP1-AU have three MPPT trackers?
Three MPPT trackers let the Deye SUN-12K-SG02LP1-AU optimise panels on up to three different roof faces independently, such as north, east and west. Each tracker runs at up to 99.9% MPPT efficiency, so shading or a different tilt on one roof face doesn’t reduce the output of the others. Most residential inverters have one or two trackers.

What batteries are compatible with the Deye SUN-12K-SG02LP1-AU?
The Deye SUN-12K-SG02LP1-AU works with lead-acid and low-voltage lithium-ion batteries in the 40–60V range. It supports up to 250A of charge and discharge current, communicates with the battery’s BMS automatically, and allows multiple batteries in parallel to scale storage.

Can I schedule battery charging and discharging on the Deye 12kW hybrid inverter?
Yes, the Deye 12kW hybrid inverter has six custom time periods for charging and discharging the battery. You can charge from solar during the day, discharge during evening peak pricing and keep a reserve for overnight backup, all on a timetable you set.

Can the Deye SUN-12K-SG02LP1-AU run off-grid?
Yes, the Deye SUN-12K-SG02LP1-AU supports both on-grid and off-grid operation. It can also charge its batteries from a diesel or petrol generator when solar and grid power are unavailable, making it suitable for off-grid NZ properties and sites with long outages.

Can I add the Deye SUN-12K-SG02LP1-AU to an existing solar system?
Yes, the Deye SUN-12K-SG02LP1-AU supports AC coupling, which adds battery storage and hybrid energy management to an existing solar system without replacing the current inverter. It’s a practical upgrade path for homes that installed solar before adding batteries.

How many Deye SUN-12K-SG02LP1-AU inverters can be connected in parallel?
Up to 16 Deye SUN-12K-SG02LP1-AU inverters can be connected in parallel for both on-grid and off-grid operation, for a combined capacity of up to 192kW. You can start with one inverter and add more as your energy needs grow.

Can the Deye 12kW single-phase hybrid inverter be installed outdoors?
Yes, the Deye 12kW single-phase hybrid inverter has an IP65-rated enclosure that seals it against dust and water jets. It can be installed on an exterior wall, in a carport or in a garage without a separate weatherproof enclosure.

How big and heavy is the Deye SUN-12K-SG02LP1-AU?
The Deye SUN-12K-SG02LP1-AU measures 420 × 670 × 233mm and weighs 35.6kg, a size that mounts on a standard wall.

How efficient is the Deye 12kW single-phase hybrid inverter?
The Deye 12kW single-phase hybrid inverter has a maximum conversion efficiency of 97.6% and up to 99.9% MPPT efficiency. Very little solar energy is lost turning DC from your panels into usable AC power for your home.

Should I choose the Deye 12kW or 10kW single-phase hybrid inverter?
The Deye SUN-12K-SG02LP1-AU suits higher-consumption homes, offering 12,000W of rated AC output and 250A of battery current. The Deye SUN-10K-SG02LP1-AU offers 9,999W of AC output and 220A of battery current. Both are single-phase hybrid inverters with three MPPT trackers, IP65 protection, a 150–425V MPPT range and up to 16 units in parallel. The 12kW model suits homes with heat pumps, EV charging or larger battery banks.