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Hi and thanks for reading.

I have my Open EVSE up and running great in standard mode.

Now I am working to set up the PV divert. 

Short version:

What MQTT messages need to be sent to get PV divert to function?

Back ground:

I do not have an open energy monitor, but I do have a system set up and monitoring current/voltage.

I can't seem to find the exact MQTT messages needed to get the Open EVSE to see available current to charge.

My connections are most similar to a "Type 1"

But, my EVSE is connected at the "junction block," so that current isn't seen by either current sensor.

Ideally, I'd just send my calculated EVSE wattage. But, I can't find the documentation for what is needed.

Thanks for the information.

It took some playing around, but it looks like the topic may need to be #/mqtt_solar

I had tried multiple different combinations of topic names, this one worked.

you need a MQTT boker - for example mosquitto

Then you will need to publish your surplus energy to a topic on the broker

On you openevse you will need to configure it to read that topic from the broker

What I don't know ( until I actually build the system) is if the data has to be always positive , or negative

I have home assistant with mosquitto and node red, so is fairly simple to setup

Le me know if you resolved this

Javier