That Growatt is a 48V AIO. You have a 48V system in your RV?
If you tried to put 6 panels in series with a Voc of 41.4V you would go over the 250V at about 73ºF. That's just not a good plan at all.
However, if you want to use a 365W panel then getting 6 and putting them in 3S2P would be 2190W and you would be well under the 250V. Having two strings in parallel will help with shading too.
Do you really have the physical space to fit 6 panels? They are 69.09"x40.87" each. Most RV roofs have a lot of things in the way. And make sure there is never any partial shading on both parallel strings at the same time or you will have terrible performance.
wow thank you so much the chart is fantastic. I am still learning the combinations of panels.
tons of room for panels on the roof even with 3 AC units & 3vents there all in center 39x8 roof , if I had nothing on sides IE bathroom vents, tv antenna I could fit 6 on 1 side alone? of course vents are always the issue on a RV
but pretty sure could be above them if needed to.
I will be have them mounted for angle 4 ways. building this myself.
https://www.4waysolar.com/ not buying it. very simple design my brother is a engineer as well
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so 3 in series would stay at 11amps and change voltage only is that correct? then go in 2p and get 22amps?
what about amp input on the Growatt???
I know it has a limit but can not find it now in any paperwork online manuals no place has it.
PV charging can do up to 80amps does this mean it can handle 80 amps input from the PV array??
pretty sure it was 18amps max input but could be way off as I have looked at many different units over the past months.
I will never see below -17.F degrees , that's the record low in Oklahoma currently.
so max 45volts per panel total 135v per series. then go 2p still at 135v?
I need minimum 120dcv to operate turn on the Growatt, 200v or more would be best according to Will.
from the downloaded manual it says "MPPT ranges 120V~250V, 300Voc"
but all over it says 250v max online.
when I watched the video again with Will testing the unit he had issues at 133v unit would not output AC power. needs to be higher he actually put 245v working voltage into the unit when testing it ran his AC unit and tesla charger?
no battery.
200v or higher closer to 250v would be ideal working voltage from what he was saying without a battery. with battery it does way better still needs to be 200v or better for good battery charging.
what would you recommend to get to that point of voltage? I am open to any panels on the market that will make it correct.
again thank you so much any input is welcome and I am grateful for it. I just want to maximize the potential.