Out of interest: Did you use Remote Console and where did you change the setting… ? I was looking at mine and can’t find the place …
ssh. Then you run dbus-spy and you scroll down to the solarcharger service, then look for /Settings/ChargeCurrentLimit. It is writeable, you can write it right from there.
You can of course also use Victron Connect… which is the proper way for non-technical users 
The difference is clear:
5,2kW kicking out. Want to up my house load by switching on the geysers as see how it responds
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Hi All - I have exactly the same problem @RSMack had with a similar setup and stumbled on this thread in an attempt to figure out how to solve it… I tried to follow along, but am clueless and would appreciate some help / guidance to solve this…
Setup:
18x425w Panels
2x Freedom Won eTower e5000
Victron MPPT RS 450/100
2x Victron MulitiPlus 2 48/5000/70/50 Inverters
Victron Cerbo GX
PV Yield seems to be capped at around 3000w. Maxes out at 3000w on sunny or overcast rainy days.
and a whole lot more graphs I pulled from VRM that might be helpful for the trained eye
Some more screen grabs that might be useful
Isn’t it just a just a matter of logging into the MPPT and changing its max current via bluetooth?
any ideas what the max current should be?
I set mine to the maximum my batteries can handle.
My system was being throttled by the MPPT that was set at 80A instead of the rated 100A the unit is designed for. Plonkster logged onto my system and fixed it very quickly. I am not sure exactly how or where he changed the setting (I assume the MPPT itself) but the difference was immediate. Basically now I get 100A x 52V output that equates to 5200W from my 16 x 450W panels. (before I was only getting around 4400W). I am still not harnessing the full 7kW I have installed on the roof, but its the most I will get from the MPPT I have. Need to see what I can do to get the full power out of the panels.
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I think you should stick with the 5.2kW. You’ve overspecced a bit on panels versus MPPT amps, but if the 5.2kW is sufficient for you, that is fine. Otherwise you’ll need to buy another MPPT and move some panels over to that one.
You could get an idea of the clipping that is happening on the production to see for how long the production is 5.2kW (given sufficient demand).
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You are probably not losing as much as you think. Let’s say you can reliably get 85% of your Wp (an optimistic estimate), you get down to 6120Wp. But you would in the best of cases only see clipping between 10 and 14h, and you can estimate the area lost as 2 triangles. This gives about (6120-5200) * 4h*0.5(triangles) = 1840Wh. Call it 2kWh per day in a day with no clouds. I don’t think it’s worth investing more in MPPTs.
And he might even find that he doesn’t have enough demand to make use of the 2kWh…
I have started following the philosophy of @Phil.g00 (Just put as many panels as you can! 
)
I have 2.4kWp connected at the moment to my 150/35 with a 15S Pylontech bank so my theoretical max is around 1.8kW.
I am also planning on adding another 800W to that MPPT which will put me just just below the max PV current limit. (And that’s even without doing what Phil does in putting different orientation strings together to get even more panels on)
I don’t care if I don’t see say a 3kW peak on the generation side, I just need a steady 1.8kW from 07:00 to 16:00 (even in winter) and I am happy with any clipping in Summer.
In SA most of us can’t export our solar power so it will get clipped anyway.
AS @Dylan said, you can just use bluetooth and set the limit to the highest possible number. If unsure, just set it to 1000, it will be capped at the max allowed value anyway. That was essentially all I did on RSMack’s system… except of course I know how to do that without the plebeian use of an app…
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I hear you on the 5.2kW probably being enough, but I still draw around 6-7 kWh from the grid on a typical day and feed back around 5-6kWh. I would rather then invest in another US300OC battery and harvest the 5-6kW for my own use instead of feeding back. Our estate charges us R2.51 per kWh drawn and only rebates R1.00 per kWh (plus R83 for reverse feed) for anything we feed back. Better to make use of the excess kWh for my own use and lower my net grid draw. I have 4 x US3000C Pylontechs currently (approx 14.4kWh storage), one more module will see me most days drawing no power from the grid which will save me around R800 per month (approx 30 month payback on the battery)
How do you get to R800/month?
By my calculations, you would need at least 2 of them? For saving almost 6kWhx30 a month at best, lets call it 180kWh.
180*R2.5 = R450.
Just a stab in the dark here and don’t know if this is already answered but could it have something to do with this in the manual?
Maybe… good info to have.
Another thing to know about MPPT-RS: The maximum battery voltage is limited to 60V. It can reach 62V, but it has to reduce the charge current to get there, so at 62V it can only do 5A.
Already had one customer running into that. His battery’s charge voltage was right on the cusp (charge voltage = 62V), and feeding in the excess DC-coupled PV didn’t work. Because you need to get up to 62.4V for that to work!
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[quote=“StefanF, post:64, topic:2635, full:true”]
Hi All - I have exactly the same problem @RSMack had with a similar setup and stumbled on this thread in an attempt to figure out how to solve it… I tried to follow along, but am clueless and would appreciate some help / guidance to solve this…
quote]s
Hi. Did you come right with your issue?
I have a similar problem. I’m being limited to about 4000w.
I have 2 Mppt, each array with a max output of 3400w each. I have a 6.6kwp system. And 1 x 5kva multiplus inverter