Hi
My battery is not charging when my solar is producing more than my house is using (battery at 60%)
It charges fine from the grid, when power is cheap, but I was expecting it to use my excess solar poer to charge the battery.
ESS is activated, and i have a MultiplusII 3000, cerbo gx, and 3phase energy meter installed.
I am new to the victron world, so any help would be apreciated.
/Karsten
As always, a little more information about the system would be helpful:
What kind of battery system are you using?
Have you activated DVCC?
Is the battery BMS set as a battery monitor?
Please include your “ESS Assistant” configuration.
Where does the excess energy go? Into the grid? Or do you have other DC loads?
Hi Steffen
I am using A 14.33kwh battery connected to the gx modules using can-bus BMS LV.
Excess energy goes to the grid.
No DVCC is not activated.
How can i include the ESS setup, is there an easy way.
You can post the ESS settings via VE Configure … summary ESS configuration … Here, the voltages must also be adjusted to the battery system.
However, DVCC should be activated … if possible … so that the voltage regulation of the MPPTs is also taken over by the system.
Otherwise, it is possible that your charging voltage will not be adjusted.
DC surplus feed-in is surely activated?
By the way … it looks like a 3 phase Ess System ?
no Mppts on the DC Side ? no DVCC necessary
Solar on the AC Side ?
I have a old Solaredge system 6kw inverter with 12 kwp panels.
Grid meter: External meter
SelfConsumption from battery : All system loads
Multiphase regulation : Total of all phases
Min SOC : 10%
Active SOC limit : 10%
Battery life state : Self consumption
Limit charge power : off
Limit inverter power: off
Grid setpoint :20W
Grid feed in
take a look …
you need an extra meter for your PV on AC in …
Ah I see the system cannot figure out when the grid-meter is measuring negative, then i am producing to the grid, it need a seperate measurement from the pv system.
YES … you have an “old” PV System with NO Communication to Victron … like Fronius … so you need this meter … configured and Position as PV on AC In …
ET 112 for single Phase or ET 340 for 3 phase
Thank you for the help.
I think the newer SolarEdge inverters are running Modbus over TCP and can communicate this way. I have also installed home assistant, it could see my solaredge system by scanning the local network. Any luck I can use the same connection method.
There is definitely a way via Mqtt…
Can you get your PV onto the AC Out?
Yes, i also found that setting up a MQTT broker might be a way, but I can also see the system will be more robust, using a extra meter. I mifgt give the MQTT a try.
3 phase PV system, 1 phase Victron system…
!!! is your 1 phase Victron on the L1 from your victron Meter !!!
Yes does the Multiplus need to know in the setup ?
The Multi does not need any information for this… with a single-phase ESS, the Multi MUST always be on L1 of the meter
BUT
the separate meter for the PV on AC In is also used for the graphical display in the console and the VRM
It “could” be that you can achieve something with the correct settings in the “Charger” section in VE Configure AND by deactivating the AC PV feed-in … this is just a guess, as the system already recognizes that you are feeding in …
The voltage in the “Charger” section of VE Configure MUST be high enough to charge the batteries… i.e., higher than the voltage “at the moment.”
Give it a try…
I am just sitting learning about MQTT. Tomorrow i will pick up an extra meter.
I have enabled MQTT on the victron system, installed MQTT broker on the home assistant, but how do i share the meter data to victron.
I think i will close this thread, and create a new as the topic has changethe help.d.
Thank you for the help.
Just a remark
I did not buy a meter yet, but setting the sales price to 0 had the effect i was looking for, at least for now.
The system charges my battery instead of trying to sell to the grid.
