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MultiPlus-II 48/3000/35-32
SmartSolar MPPT Ve.Can 1500/100 rev2
Battery Pylontech LiFePo
Hi
i want to set my Victron to is ON Grid only if Battery is full charged ca 100%-98%.
It is possible ?
Thanks
Battery:
100-98% - On Grid
98-20% - Off Grid
20-0% - On Grid
Overloaded - On Grid
Off Grid - I mean island mode
HI @Beeda
How would you ever get to <98% if you're using grid above 98%? As in if the grid goes down?
The way I would do this is with node red.
if( SoC => 98 || SoC <= 20){ //if greater than 98% or less than 20%
//set ESS mode to Keep batteries charged.
}else if (SoC >20% && SoC <98%){ if soc in between 20 and 98
//ESS mode Optimised without battery life
}
For this Logic funktion i need any special thing, or wher can i this sett ?
To make custom integrations/setups you can use node red.
Some more info on installing that here:
Venus OS Large image: Signal K and Node-RED [Victron Energy]
I'd suggest you break down the requirements into clearly defined criteria under each scenario. As at the moment it's not clear when you want grid to cover loads and when you want solar to cover loads.
The below code will be a decent starting point for you. It dynamically adjusts the minimum battery soc the system will get to.
Therefore the below code should ensure that loads are covered by the grid if battery >98% and if there isn't enough Sun, if there sufficient sun the solar will be used (but no battery)
If battery <98 but >20 then the system works as "normal ESS" system.
If batter <20 then loads are covered by battery.
if( SoC => 98){ //if greater than 98% or less than 20%
minSOC = 98
}else if( SoC <=20){
minSoC = 20
}else if (SoC >20% && SoC <98%){ if soc in between 20 and 98
minSoC = 0;
}
return minSoC;
.
Agree with matt1309 that nodeRED is best way to build custom functionalities.
But what is reason to go island mode? If you just set Grid set-point to 0 and limit feed-in to 0 on those periods when want to not use grid. That can be achieved by using nodeRED setting these parameters.
