Turn off Solar on MultiRS while still charging the battery from the grid

As the energy prices go well below zero on solar peak hours today, I am turning off my SolarEdge inverter on those hours today.

Would it be possible to turn off the mppt-trackers on my MultiRS in a similar way through software (preferably NodeRed) so that the system can still draw power from the grid instead? I know the system is very capable of throttling down solar input, yet I am unable to find the way to control this manually.

Hi @gvs

Would it not be easier to use ESS’s export limit option to 0watts

Which can be set in node red.

I’m not familiar with solaredge but if you’ve setup frequency shifting (assuming it’s supported) I think that ESS functionality should manage it all for you?

Happy for someone to correct me here.

When you are grid connected there isn’t frequency shifting and solar edge doesn’t have the modbus control that other have like the fronius.

The best manual control the multi rs is switch off the pv breaker.

I am also interested in this and the 100 points question is:

How to turn off (individually) the mppt-trackers on a MultiRS through software ?

or, extending the question to the entire RS range,

How to turn off (individually) the mppt-trackers on a RS device (Multi RS and/or MPPT RS) through software ?

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For clarity, I am succesfully turning off my SolarEdge inverter through RRCR Power Control. Simply put I connected two wires to the relay on one of my MultiRS’s and closing that relay tells the SolarEdge to stop producing energy.

What I am unable to achieve is shutting down my panels connected directly to the internal MPPT connections of my MultiRS. Obviously the manual breaker switch under the MultiRS accomplishes this, but I need to be present to do that, and I doubt how much that breaker likes to be switched off under load on a daily basis.

I agree. That is not what it is there for. I have separate brekers on the strings. If i get a few minues will dig deeper to see if there a sfotware option that doesn’t affect charging from grid as well

In this moment there is no documented way on how to disable tracker 1 or 2 (or 3 or 4 on MPPT450/200)…
It would be a nice feature next to the name of the tracker…
Something like this:

I am also looking for this. Negative prices are now quite common, and I would like to charge from the net during those hours instead of from the solar panels. Even a simple setting exposed through MQTT would already be helpful.

It seems we got the option to disable the mppt trackers in our MultiRS. :smiley:

I noticed a new “Solar charger enabled” toggle in VictronConnect…
After a brief search I stumbled upon the /PV/Disable path in my MultiRS dbus.

A Custom Control Node was quickly created and seems to work for me as expected.

Thanks to the ones who arranged this for us!

Can you please post a sccreenshot of this?
Which Victron Connect version?
And which Multi RS firmware version?
Thanks again!

Venus v3.60-74
MultiRS v1.23
VictronConnect v6.20beta11 on iOS

Are you sure those disable the MPPTs?
Remember some wanted to hide the trackers without panels from VRM, so that option for "visibility " was born…