Hello,
We have a MultiPlus 48/5000/70 battery-only off-grid solar setup. We recently added an additional solar array (increased from 5kW to 10kW), and now need to extend the max AC power from 5000 to 10000 VA.
I have been using and adding various Victron components during the years and thought that with time, when we add more solar panels, I'll be able to utilise the so-much advertised "Virtually unlimited power thanks to parallel operation" quote. To my despair, I just got reply from the dealer that my MultiPlus "is too old" and can't work in parallel with the units that are sold Today!? Is this true? How can it be?
Our MultiPlus has the following version sticker on the processor: 1959143.VFD
- Isn't it possible to upgrade the firmware to work in parallel with the currently sold MultiPlus?
- Isn't it possible to buy a MultiPlus with the compatible "old" firmware to my owned MultiPlus?
- If parallel is impossible, are there any other alternatives, like connecting them in serial? I.e. feeding AC-Out of the "old" MultiPlus to the "new" MultiPlus AC-In (with charger disabled) and expect that PowerAssist would kick-in when AC-in limit is reached? It would be set to MultiPlus max power. This way the "old" MultiPlus would take most of the load, while the new one would kick-in only when more than 5000 VA are needed.
If nothing of the above is possible, what would you suggest? One of the reasons I went with Victron years back was because of that "Virtually unlimited power thanks to parallel operation" quote. Was it just a marketing trick which only works in one corner case when you buy all the equipment at the same time, and there is no backward compatibility designed-in?
Please help.