I have a MultiPlus-II 48/5000 with ESS and a charge controller. When the grid is available, the charge controller turns off, and the system starts using the gird. Can someone help me configure the system so that it prioritizes solar power and uses the grid only for any additional demand what ever the battery % in the day?
Are you sure ESS is configured correctly?
https://www.victronenergy.com/media/pg/Energy_Storage_System/en/index-en.html
Yes i have tried all the ess i donât want the grid to be used related to the battery percentage i need it related to the pv power if its not sufficient
then please show your ESS summary from VE Configure and the ESS settings from the console âŚ
and where is your system located ⌠at this mains voltage and frequency?
what batteries do you use and do you have a reasonable communication with him.
It may be that the discharge is blocked ⌠you can see this in the details of the battery in the console âŚ
i have 3 pylontech batteries please find attached the ess pics and the batteries wasnât blocked from charging and discharging
first view ⌠300Ah Capacity ? 3x Pylontech ⌠what kind of Pylontech ⌠3000/5000?
close to 56V Chaging Voltage ⌠is this just a âPylontech BMSâ on a 16S System ?
Are the Pylontech BMS in your System set as âBattery monitorâ ?
DVCC MenĂź ?
Mode ist âkeep batterie chargedâ ! ⌠so your batterys are keeping charged ⌠change the mode to âwithout Batterielifeâ and take a SOC with 30% for testing first âŚ
Hello, I have a similar situation to Tabet Charbel. The setup is identical, with the same 3 Pylontech 5000 batteries, and there is a need to constantly keep the batteries charged due to a very unstable grid. In âkeep battery chargedâ mode, power priority is given to the grid until you change the mode to another one and back - only then does it start mixing in solar power. BUT the next day everything repeats! If you change the mode to âwithout Batterylifeâ and set SOC to 100%, the battery discharges to 99% at night, and in the morning it starts charging with low current from solar WITHOUT mixing with the load, and solar power is not added to the load until the battery is charged, which takes until 11-12 noon.
1 Like
yes, us5000 and the battery monitoring is the bms is i put the without batterie life then the grid does not be used until the battery reach the percentage needed i need Solar then grid then battery
1 Like
With the high charging voltage, your Pylontch batteries should have issued an âovervoltage warningâ long ago. Show your DVCC setting from the console
This is the typical â3% swingâ in the charging cycle
In theory, it would even go down to 97% before charging again.
However, this constant âcharging to 100%â is not so practical. It would be better to reduce the DVCC charging voltage to a healthy SOC value of 92-95% âŚ
1 Like
Thank you for your response. Excuse the newbie question, should I lower both parameters - Absorption voltage and Float voltage?
Take the time to look through it properly
https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom
1 Like
I followed all the recommendations in this manual and ended up with the situation described above. Unfortunately for me, this is something Iâm having difficulty understanding, and local installers donât work with Victron at all. I would be grateful for any advice.
Which settings are you still missing ⌠and where exactly âŚ
1 Like
The situation in my case is as follows:
Hello, I have a similar situation to Tabet Charbel. The setup is identical, with the same 3 Pylontech 5000 batteries, and there is a need to constantly keep the batteries charged due to a very unstable grid. In âkeep battery chargedâ mode, power priority is given to the grid until you change the mode to another one and back - only then does it start mixing in solar power. BUT the next day everything repeats! If you change the mode to âwithout Batterylifeâ and set SOC to 100%, the battery discharges to 99% at night, and in the morning it starts charging with low current from solar WITHOUT mixing with the load, and solar power is not added to the load until the battery is charged, which takes until 11-12 noon.
You recommended lowering the voltage in DVCC to SOC level of 92-95%.
Should I lower both values - âAbsorption voltageâ and âFloat voltageâ? Or did I misunderstand you?
The voltage would then be 50.5 V via DVCC Menue in the Remote Console for 90% of the pylon techs - everything else is just guesswork âŚ
1 Like