I’m all into the victron stuff and have some knowledge of the building blocks.
With multiplus-II you can feed ac coupled Pv into the multiplus, and have it charge the batteries. However you will be converting dc into ac, and then into the multiplus as ac, and then again it will convert to dc...
In remote target I have set 56.9 and limit at 57.0 then it throttles down ‘in the end’ but I can’t figure when it reaches the end, seems like there must be a metric for, when it started to limit the amps, because batrium requests like 75 amps, however we are only putting 8-10 into the battery...
You are absolutely correct. It’s the mppt charging the battery.
I’ve actually managed to fix it. However still seeing charge even if remote target is 0.0 amp, limit is set for 2.0 amp. We are still charging with around 2 amp, makes sense. But where does the 0.0 come
is yours working as...
I am also running a victron system + batrium.
Can you share your batrium settings?
We are experiencing that if we enable "feed in excess" the battery will be charged, even if batrium asks for 0 amps. So we are currently charging at 1400watt even if soc is 99%.
If we disable feed in...
Wolf, you really had me lauging here. !! :) This was a funny reply. I really like you tried to extrapolaty my location, but what was your result of the extrapolation then? :)
I live in Denmark, We have heavy rains sometimes. My bunker is build upon a really heavy clay bottom. So thats quite...
Sorry for the late reply. Thanks for this, you really had a good look. i will do a redesign with tw3isted copperwires, like everyone else. I cant heat this enough up since its 16mm2. I have a 100W soldering iron.
Sorry for the very late reply.
I was calculating for 10KwH peak load in maybe 5-10 minutes. I will lower this calculation, and limit the amount of amperage i draw from my battery. The inverter will top up from grid.
I actually looked at Peters video’s, and thought they looked thin.
So you say 25 amp’s per run, if I have 2 strings on each side, that’s four in total, so only 12,5 per twisted copper wire?
OR is it 50 amp on the positive AND negative side ?
Been prototyping a busbar made from 16mm2 strained copper, but the strained copper is difficult to work with.
Now, I was trying to calculate the wire size using stiff copper wire, for example 3x4mm2 twisted.
So how do you calculate it?
what I mean is, I have two wires going down the...
Exactly - but you are using victory now, is that correct ?
I was quoted for a 250/100 victron mppt charger, 3x multiplus II 3000/48 and a fox display for 25.000 dkk.
However it doesn’t seem the charger is able to deliver to both battery AND inverters. How did you solve that?
the mpp-pip can be...
My plan is NOT to sell to the grid, so an offgrid inverter is actually what I need.
God any suggestions, for something better than MPP??
6-80 watt idle, how is it not 80watt all the time, that was how I understood it at least 😎
I have build a 48V 20KwH battery, i got 32x250W panels on the roof.
I have a really hard time locating a good quality 3 phase inverter or 3x1 phase.
I've looked at MPP PIP, but it seems like its buggy, AND consuming a lot of power when its idle. I live in Denmark, where its dark for a...
Hah. I was looking for another section, which one was right?
I have not decided inverter size yet. The house will maximum pull 7kwh at the same time.
We have calculated on busbars many times, but Im unsure how to calculate how many nickel strips in the other direction.
My first pack, my first power wall.
Spot welded the positive side with fuses from BatteryHookup. The other side, these Double nickel strips from China. Now for the crossing direction, do I need to weld that strip on for every row, or as Ive done it so far - for each 5 rows?
The AC load will...
Good info as usual Korishan! i was gonna insulate the concrete floor, as well as the walls with rockwool leftovers from the house. I think you're right, just putting a small heater out there would be enough. the shed will only be 1 square meter or similiar.
Is there an upper temperature limit...
Great to see your progress.
I want to build a modular powerwall, as you also have done.
However i can't seem to understand, if you are able to take out a pack or not. In my opinion, if you take out a pack in the middle of your 7S, you will break the whole string of 7S, is that not...