I find myself wishing there was a bigger MPPT available, is there a case do you think?
some examples of why....
1) Trina vertex s+ 430W pv panel has
Voc 51.4V, Isc 10.59
In principle 10 of these could fit on my roof. So Vstring would be 514V, plus 0.24%/K away from STC, assuming -5C worst case adds another 37V, so 551V max.
AFAIK nothing in the victron range will cope with this directly.
Is there a gap in the product range, for something bigger, like a MPPT 600/15 charge controller?
The victron mppt charge controllers seem to be focused on higher current capability, e.g. 250/60 is the smallest 250V option I'm aware of.
For other manufacturers PV inverters a 550-600V pv input is not uncommon, so I find myself puzzled.
Maybe there's something about charge controllers which is different to pv inverters and I'm comparing apples to pears?
Some further examples...
2) REC alpha 430W has Voc 59.7V 0.24%/K. That would give 597V + 43V = 640V (gosh!) for a string of 10. That's still 320V if split into a string of 5
3) Jinko, eurener, longi etc all seem to be around 42V with 0.25%/K temperature sensitivity. But even 10 of these in one string is 420V + 31.5 = 451.5V which again exceeds the available kit.
Is it fair / sensible to expect to put 10 panels on one string or ideally should there be a bigger MPPT available?
Thanks for taking a look
