20 kW Three-Phase High-Voltage Hybrid (160–700 V, 2 MPPT, WiFi Plug Included)
The SUN-20K-SG01HP3-AU-AM2 is a 20 kW three-phase high-voltage hybrid inverter built for big homes, rural properties and small commercial sites that want proper solar plus batteries on 3-phase power. It ties together your solar array, 160–700 V lithium battery and the grid in one unit, and comes ready for app monitoring via the included WiFi plug.
BSC Renewables can build this into a full system – panels, battery, smart meter and monitoring – so everything works as one.
At a Glance
Deye 20 kW three-phase hybrid inverter:
- Is designed for high-demand homes and small commercial systems
- Works with a high-voltage battery (160–700 V) for higher efficiency and less heat loss
- Has a max charge/discharge current: 50 A on the HV battery side
- Comes with 2 MPPTs, with room for up to ~30 kW of solar panels (DC) and 1000 V PV input
- Supports a DC/AC ratio around 1.3:1, so you can safely oversize the array
- Offers 100% unbalanced output – any phase can carry up to half the inverter’s rated power
- Has up to 16 units in parallel for bigger on-grid or off-grid projects
- Is CEC-approved, with a 10-year product warranty when installed to spec in Australia
Where this model really shines
You’d typically look at the SUN-20K if you:
- Have a large 3-phase home or rural property with plenty going on – ducted air-con, bore or pool pumps, EV charger, big kitchen loads
- Run a small commercial site, shed, warehouse or workshop and want to chop down daytime grid usage
- Are planning a decent-sized battery bank, not just a small “starter” battery
- Want a system that can grow into a mini power station over time – more panels, more storage or extra inverters
Key Benefits of Deye 20 kW three-phase hybrid inverter
1. High-voltage battery built for efficiency
Instead of a 48 V bank, this series uses a 160–700 V lithium battery input.
Why that matters:
- Less energy wasted as heat – higher round-trip efficiency
- Lower current on the battery cabling, which usually means neater wiring and less copper
- A natural fit with modern HV battery stacks that are designed to sit in this voltage window
If you’re investing in a solid amount of storage and care about performance over the long haul, HV is a smart way to go.
2. Handles real-world 3-phase loads
On real switchboards, one phase almost always works harder than the others.
The SUN-20K-SG01HP3-AU-AM2 supports 100% unbalanced output, so:
- Any single phase can deliver up to 50% of the inverter’s rated 20 kW
- You can comfortably support “heavier” phases – for example, the one with the EV charger or big A/C
- There’s less stress about perfectly balancing every load today and in future upgrades
That flexibility is a big plus for both new installs and staged projects.
3. Big DC capacity with 2 MPPTs
It offers:
- Up to 30,000 W of PV input
- Max PV voltage 1000 V, MPPT window roughly 150–850 V
- 2 MPPT trackers with 26 A + 26 A max operating current
In practical terms, that lets BSC Renewables:
- Put one MPPT on your best roof face (often north) and the other on east/west, shed or extension roofs
- Keep shadier or awkward sections of the array on their own tracker
- Oversize the array sensibly (within standards), so your 20 kW inverter still does well in winter and on cloudy days
4. Smarts for tariffs, generators and future growth
You get so much more than just free energy:
- You can program six different time windows for battery charging and discharging
- The inverter can AC-couple to some existing solar systems, handy if you’re retrofitting storage
- It supports storing energy from a diesel generator in the right design
- Up to 16 units can be run in parallel, both on-grid and off-grid
For you, that means:
- The system can be tuned around time-of-use tariffs – charge mostly from solar and off-peak, discharge during peak rates
- You can hold back battery reserve for blackouts instead of always running it flat
- There’s a clear upgrade path if you extend the house, add a shed, or expand the business
5. Monitoring and WiFi
This Deye inverter model offers WiFi, RS485 and CAN comms plus cloud monitoring.
What that looks like day to day:
- BSC Renewables sets up the WiFi monitoring when we install the system
- You can see:
- Current solar production
- Battery state of charge
- How much power you’re buying from or exporting to the grid
- Current solar production
- Remote data (where available) makes it easier to tweak settings and spot issues early
Want to see if it suits your place?
BSC Renewables can design a full solar-plus-battery setup around the SUN-20K-SG01HP3-AU-AM2, or steer you to another inverter in the Deye range if that’s a better match.
Get in touch for a chat or site visit
Share a bit about your usage, site layout and goals, and we’ll help you work out whether this 20 kW high-voltage hybrid inverter is the right backbone for your energy system.