Enphase TCP/IP Modbus

[Manuel-Calero]

Hello!
I just came across with this document:

https://enphase.com/cz-cz/download/ac-coupling-victron-battery-inverters-using-modbus-tcpip-tech-brief

and I understand enphase has made the integration, that we all had in the past with this fantastic driver from Manuel, using modbus instead mqtt, but it seems to work the same way.

Has anyone used the enphase integration shown in this paper?

Thank you!

[mr-manuel]

Wow, after that much time, finally they released something useful! Thanks for sharing

[mr-manuel]

So after two months, I still got no feedback from the Enphase support to enable this.

[Manuel-Calero]

Hello Manuel!

Have you had time to test this? Does it work?

Thank you.

[mr-manuel]

Yes, I had time to test it. If you do not need power limiting then it works, else you have to wait for a fix of Enphase or build your own dbus-fronius that fixes it on Victron side. One small bug was solved with latest Venus OS v3.70~27.

dbus-fronius:

Set di->di.maxPower to a fixed value, which is the max power of your PV system.

https://github.com/victronenergy/dbus-fronius/blob/aea7d33e15d2a7cf176d9bceea0cdf0cd2abdb49/software/src/sunspec_detector.cpp#L213

[mr-manuel]

I'm still in contact with Victron and Enphase to make this work smoothly.