WARNING: This is still highly experimental. Don't expect that it will work out of the box...
Integrate the internal inverter readings of a Senec Home storage system into Victron Energies Venus OS In order to see more realistic values, battery (dis)charging is also taken into account: The currently charged power is subtracted from the inverter power and discharged power is added. Therefore, the entire system acts as an inverter as long as the internal inverters are producing energy or the battery is being discharged.
It can be used in concert with my other script venus.dbus-senec-enfluri to fully integrate a Senec Home system into Victron's ecosystem.
With the scripts in this repo it should be easy possible to install, uninstall, restart a service that reads the current values of Senec Home's internal inverters and publishes them to the VenusOS and GX devices from Victron. Idea is pasend on @RalfZim project linked below.
This project is my first on GitHub and with the Victron Venus OS, so I took some ideas and approaches from the following projects - many thanks for sharing the knowledge:
- https://github.com/RalfZim/venus.dbus-fronius-smartmeter
- https://github.com/victronenergy/dbus-smappee
- https://github.com/Louisvdw/dbus-serialbattery
- https://community.victronenergy.com/questions/85564/eastron-sdm630-modbus-energy-meter-community-editi.html
- Senec Home v3 Duo Hybrid storage system
- ABB EnFluRi meter, connected to the Senec system using Modbus/RS485
- 3-Phase installation (normal for Germany)
- IP 192.168.37.123/24
As mentioned above the script is inspired by @RalfZim fronius smartmeter implementation. So what is the script doing:
- Running as a service
- connecting to DBus of the Venus OS
com.victronenergy.pvinverters.http_40 - After successful DBus connection, readings are accessed via an unsupported/undocumented API of the Senec system (lala.cgi)
- Serial is taken from the response as device serial
- Paths are added to the DBus with default value 0 - including some settings like name, etc
- After that a "loop" is started which polls Senec/EnFluRi data every 1000ms from the REST-API and updates the values in the DBus
Thats it 😄
Just grap a copy of the main branch and copy them to /data/dbus-senec-inverter.
Edit the config.ini file and fill in the IP of your Senec Home
After that call the install.sh script.
- https://github.com/victronenergy/venus/wiki/dbus#grid DBus paths for Victron namespace
- https://github.com/victronenergy/venus/wiki/dbus-api DBus API from Victron
- https://www.victronenergy.com/live/ccgx:root_access How to get root access on GX device/Venus OS