Deye SUN-25K-SG01HP3-AU-AM2 Hybrid Inverter

1. Built for bigger, cleaner storage

Like the rest of the HP3 series, this model uses a 160–700 V high-voltage lithium battery input, not a 48 V bank. 

That gives you:

• Higher round-trip efficiency – less wasted as heat in cabling and electronics

   

• Lower current on the battery side, which usually means neater wiring and less copper

   

• A natural match with modern stackable HV battery systems designed for this voltage range

   

If you’re investing in decent-sized storage, the HV architecture helps squeeze more value out of every kilowatt-hour.

2.Three-phase support that matches the real world

In theory, three-phase loads are perfectly balanced. In the real world… they’re not.

The Deye SUN-25K supports 100% three-phase unbalanced output, meaning: 

• Any single phase can supply up to 50% of the inverter’s rated 25 kW

   

• It can comfortably handle a “busy” phase – for example the one with the EV charger or larger A/C

   

• You’re not constantly fighting to keep every phase perfectly even as loads change over time

   

That flexibility is a big win for both staged upgrades and brand-new builds.

3. A lot of PV on two trackers

With SUN-25k, this is what you get: 

• Up to around 37.5–40 kW of PV input (DC)

   

• Max PV access power: 50,000 W

   

• Max PV voltage: 1,000 V

   

• MPPT voltage range: 150–850 V

   

• 2 MPPTs, each with its own string pair (26 A + 26 A max operating current)

   

In design terms, that lets BSC Renewables:

• Put one tracker on your prime orientation (often north) and the other on east/west, shed or extension roofs

   

• Keep shadier or awkward sections on their own tracker so they don’t drag down the whole array

   

• Oversize the array sensibly (within standards) to boost winter and cloudy-day performance so the 25 kW inverter actually gets fed
  

4. Smarts for tariffs, generators and future expansion

The HP3 AU series includes a bunch of features aimed at “grown-up” systems: 

• Up to six time periods for battery charge/discharge scheduling

   

• Ability to AC-couple to some existing solar systems – handy for retrofits

   

• Can be set up to store energy from a diesel generator in suitable designs

   

• Parallel operation up to 16 inverters for large sites, on-grid or off-grid

   

For you, that translates into:

• The system can be tuned around time-of-use tariffs and how your site actually runs

   

• You can hold back reserve battery for blackouts instead of draining it every night

   

• There’s a clear path to scale up if you add more sheds, machinery or tenants later
  

5.Monitoring, WiFi and control

Deye’s SUN-2K5 offers cloud monitoring with WiFi, RS485 and CAN on board.

Day to day, that means:

• BSC Renewables will set up the WiFi plug and monitoring during your install

   

• You can jump into the app to see:

   

  • Live solar production

     

  • Battery state of charge

     

  • How much power you’re importing from and exporting to the grid

     

• Remote data (where available) makes it much easier to spot issues early and tweak settings over the life of the system