Hi, I have a few panels, of different sides. Which mppt should I use?
asked
Best mppt for my array
Hello Matthijs ;)
There are several factors which go into correct sizing of an MPPT. It is always recommended to use panels that are the same size and facing the same direction for best MPPT efficiency. Though as long as the panel side voltage is at least 5V above the battery voltage, you will get some charge.
When it comes to selecting a Victron MPPT’s, they have two numbers that classify them.
The first is the maximum PV input Voltage eg 75,100 or 150.
The second is the current (Amp) output limit, eg 20, 50 or 70.
As an example, this is shown as 150/70, for the 150V input limit and 70A output limit model.
When deciding with MPPT to use, you need to know the operating voltage of your system system.
12 and 24V systems can use the whole range of MPPT’s, while 48V systems typically require the 150V-250V range.
Victron has also created an MPPT sizing calculator to help, the current version requires Excel.
You can review the range of Victron Charge Controllers here.
More detail is probably best sourced from your distributor, who can discuss compatibility with the system as a whole. This includes energy needs, battery, wire and fuse sizing.
Hi Guy, thanks for the extensive answer. I hope you can keep those coming when there is a good flow of questions here :-).
For this particular question, see also answer here:
Hi mvader, please contact your dealer or look on the website. ;-)
Should be sticky as this comes up time and time again.
