Solax, Tommatech, QCell Hybrid PV inverters

Version 1.0 (2026.03.04)

Solax / QCell / TommaTech hybrid PV inverters integration for FIBARO Home Center 3 series and NICE Yubii Home hubs, via the Modbus protocol.

This integration is published in form of encrypted QuickApp device. File attached below is a trial (demo) version that runs for 7 days after installation.
The full version has no time limitation and is distributed as an encrypted QuickApp, released for single FIBARO Home Center or Nice Yubii hub with serial number provided by the buyer.

Cost of full version is 100 Euro without VAT tax (for EU companies with valid EU VAT ID we can use 0% VAT tax for others 23% VAT tax will be applied, so total is 123 Euro to pay).
Cost is per one FIBARO Home Center / NICE Yubii controller.
Please contact us if you need USD calculations. 
Payment option: bank wire transfer (SEPA/Swift), Paypal
Contact and more details: smarthome @ hdev.pl 
Seller and developer: Human Devices company, VAT EU: PL8942392501
More at www.hdev.pl/en 

Compatibility

• FIBARO Home Center 3
• FIBARO Home Center 3 Lite 
• Nice Yubii Home (PRO) and compatible
• FIBARO/Nice firmware version: 5.150, or newer
• One of following compatible hybrid PV inverter: 
  o Solax X3 Hybrid G4 series
  o QCell X3 Hybrid G4 series
  o TommaTech Trio K-Series

More about these inverters:
https://www.solaxpower.com/products/x3-hybrid-g4 
https://www.q-cells.de/privatkunden/hardware/solarspeicher/qhome-ess-hyb-g3 
https://tommatech.de/en/products/trio-hybrid-k-50-150kw-123.html 

How it works

Solax / QCell / TommaTech inverters support the Modbus TCP protocol, so integration can be started immediately after connecting the device to the home network via a WiFi or LAN cable  and enabling Modbus TCP protocol at inverter’s settings.

The connection works locally, without usage of a cloud or the Internet. Data is read in real time, refreshed few times per minute, without limits and delays.

Supported functions

• Readings of the operating status and priorities for energy flow between the PV, energy storage, home load, grid and slave inverters
• Readings of PV power and energy (up to 2 MPPT, total and for the current day) 
• Battery status control - charge level, charging and discharging power, daily and total charging/discharging energy, voltage and temperature
• Option of setting the required minimum SOC
• Monitoring of power and energy for home loads
• Monitoring of power and energy for the grid 
• Monitoring voltages for each phase 
• Support for slave inverters
• Temperatures provided by the inverter
• Information about inverter operation errors
• Possibility to activate one of the action strategies/priorities for energy flow:
  ► Battery First – PV is used for home load and chargers battery; battery can be used for home load when PV is not sufficient and battery SOC is above minimal SOC
  ► Sale First– PV and battery cover the home load, when battery SOC is above minimal SOC, battery is discharged to grid
  ► Grid First – PV after covering the home load, provides surplus energy to grid. Battery is used when PV is not enough for home load, and SOC of battery is above minimal SOC
  ► Battery from grid – electricity from the grid is used to charge the battery but only when SOC is below minimal SOC
• Comaptibile with SmartPower energy management for FIBARO

Note: the inverter has a number of additional configuration parameters that affect the operation of above strategies. The parameters can limit the charging/discharging power, specify the minimum battery SOC, limit the maximum power of battery charging from the grid, and many others.

   

QuickApp adds the following set of meters and other child devices to the system:

• Current PV production power [W] (for PV1 and PV2)
• Total energy produced [kWh]
• Current battery charging power [W]
• Current battery discharge power [W]
• Battery state of charge (SOC) [%]
• Minimum required battery SOC – editable value that limits charging/discharging depends on active strategy/priority for energy flow.
• Battery temperature
• Current home load power [W]
• Home energy consumption [kWh]
• Export power for grid  [W]
• Import power from grid [W]
• Total energy exported to the grid [kWh]
• Total energy imported from the grid [kWh]
• Grid voltage for phase L1, L2 and L3
• Inverter temperature
• Error indicator (binary sensor)
• For switches to switch or check energy flow strategy/priority

 These child devices can be used in Energy panel configuration, and in scenes. 

More information about available options and configuration of all devices can be found in the document available for download below.

Attached ZIP file for download

• Solax X3 HYBRYD G4  Modbus DEMO trial QuickApp file (fqax)
• QCell X3 HYBRYD G4 Modbus DEMO trial QuickApp file (fqax)
• TommaTech Trio K Modbus DEMO trial QuickApp file (fqax)
• QuickApp installation and configuration guide (PL, ENG)

The QuickApp is a demo version that works for 7 days after installing, with limit till end of 2025 year.
Fqax file shall be imported to your Home Center / Yubii Home hub at administration panel (accessed via Web browser): menu Settings, section Devices, button Add, tab Other Device, command Upload File.
NOTE: At the time of QuickApp installation, the FIBARO HomeCenter or Yubii Home hub must be registered on the owner's YubiiID account and must be connected to the Internet (this is a general requirement for the installation of encrypted QuickApps).