Sigenergy hybrid PV inverters

Version 1.0 (2025.07.31)

Sigenergy hybrid PV inverters integration with 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
• 3-phase devices: Sigen Hybrid EP series, Sigen PV M1-HYA series, SigenStor EC/ TP/TPLV series

More about Sigenergy PV devices at:  https://www.sigenergy.com/  
The integration was tested with SigenStor EC 8.0 TP

How it works

Sigenergy 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.

As an alternative, Sigenergy devices also support Modbus RTU protocol on the RS-485 serial connector. For such connection you need an additional Modbus RTU-TCP Gateway, which must be purchased and installed yourself. Such gateway can also support other devices with the Modbus RTU protocol in parallel. For Modbus RTU option please contact us for more details.

Supported functions

• Readings of the operating status and priorities for energy flow between the PV, energy storage, home load and grid
• Readings of PV power (up to 2 MPPT) and total/daily energy 
• Battery status control - charge level (SOC), charging and discharging power, charging/discharging energy (total and daily), temperature, state of health (SOH)
• Controlling minimal discharge and maximal charge SOC limits
• Monitoring of power and energy for home loads (summary and per phase)
• Monitoring of power for the grid (summary and per phase)
• Monitoring import and export grid energy
• Monitoring of total and daily energy for production and inverter import and export
• Monitoring voltages for each phase 
• Monitoring of inverter’s temperature
• Information about inverter operation errors
• Possibility to activate one of the action strategies/priorities for energy flow:
  ► Battery First – PV primarily goes to home loads and charges the batteries. When PV energy is not enough for home load, battery is used. System tries to keep 0 energy flow at grid connection.
  ► Sale First– PV and battery cover the home load first, surplus goes to grid. Battery is discharged to the grid.
  ► Grid First – PV energy goes to home load and to grid. When PV energy is not enough, grid covers home load. Battery is preserved - not charged and discharged.
  ► Battery First with grid AC charge – system takes additional power from grid to charge battery with full possible speed.
  ► User Mode – switch on control by MySigen APP, with AI and other modes.

Note 1: Minimum required battery SOC parameter, described below, limits charging/discharging battery for each of above strategies.
Note 2: 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]
• Total energy produced [kWh]
• Current battery charging power [W]
• Current battery discharge power [W]
• Battery state of charge (SOC) [%]
• Battery state of health (SOH) [%]
• Minimal discharge SOC– editable value that limits battery discharging depends on active strategy/priority for energy flow.
• Maximal charge SOC– editable value that limits battery charging depends on active strategy/priority for energy flow.
• Export power for grid  [W]
• Import power from grid [W]
• Export energy to grid  [kWh]
• Import energy from grid [kWh]
• Home load power [W]
• Home consumption [kWh]
• Inverter temperature [°C]
• Battery temperature [°C]
• Grid voltage for each phase [V]
• Five 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

• Sigen PV Hybrid 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.
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 FibaroID account and must be connected to the Internet (this is a general requirement for the installation of encrypted QuickApps).