Hello,
Can I use any String Inverter to AC Couple to my MP2? I see the manual references Fronius and a couple others but as the Multi is the one doing the frequency change to turn on/off the PV Inverter I would think it wouldn’t be a problem please advise
If you going to AC-couple on the AC-OUT side, that inverter needs to be able to understand^1 frequency shifting, so the multis are able to reduce it’s output, when running in offgrid-mode and too much energy is beeing produced.
Also the Factor-1 Rule has to be obeyed:
https://www.victronenergy.com/live/ac_coupling:start
^1 If he does not understand complex frequency shifts he needs at least comply to requirements that it will turn off completly at a certain frequency. SHOULD be true for every grid-driven solar inverter, but never hurts to double check.
When running on AC-IN, there is AFAIK no need for anything.
Beeing able to integrate that inverter into the GX makes sence, so numbers would align properly.
But it still would work without, it will just lead to the assumption that there is 0 AC-Load on the AC IN, while the solar inverter is producing enough power to cover that needs.
(Therefore a dedicated meter could be use, if the inverter can’t be natively integrated or there is no community-solution to do so)
Yes will be on the AC-Out side I have a Solax Inverter model number X1-5.0-T-N
Which complies with the Factor-1 Rule
How do I find out if this Inverter is able to be controlled by my Multi
I was hoping Victron only recommended the Fronius brand as it’s an easy add using a GX device
Normally every new PV inverter should be controllable via frequency shift.
You have to look into the manual/datasheet or ask the manufacture about that.