Mppt for solar panels
BMV 712 for battery monitor
Smart shunt as DC meter for boat engine alternator
Ve bus to nma2000 cable
USB gps device
USB bluetooth for ruuvi
4 ultra capacitor batteries
Albicombi for engine sensors
Bilge pump sensor
Fuel tank sensor
Water tank sensor
Relay to turn Aircon on/off
Relay to turn lights on/off
Ethernet cable to connect to raymarine MFD and rest of raymarine system.
I now installed silent wind wind generator with hit own controller and i would like to add a shunt as DC meter selecting wind generator
How do I connect the 4th be bus device to the cerbo
Ik heb thuis een multiplus II GX aangesloten op het Net met een 10Kw lithium batterij.
Alles in mooi aangesloten zoals het in de manual beschreven staat en het systeem werkt ook gewoon perfect, Maar nu is de keuring langs geweest om het systeem te keuren en dat wilde hij niet doen omdat de omvormer in serie was aangesloten met het electriciteitsnet en niet in parallel. (Ik vertelde hem dat dit systeem enkel maar in serie kan worden aangesloten en dat alle meet apparatuur vanbinnen in de multiplus aanwezig is, en dat dit toestel aan alle veiligheids voorzieningen voldoet en gekeurd is door Synergrid belgie)
Kan iemand mij helpen met info of voorbeelden van iemand anders die dit ook zo gedaan heeft thuis, zodat ik dit kan voorleggen aan de keurder? Of heb ik zelf iets over het hoofd gezien?
In bijlage de schets van hoe het is aangesloten:
Met vriendelijke groeten
I have 4 x 40 w victron (18.3v/ 2.2 A) panels plus one 100w Energie mobil (17.4v/5.8A) solarpanel on the roof of my Rv. I need to connect all that to an mppt 75/15 wired to a 250ah 12v lihitum battery.
I am wondering what would be the best configuration for it. i have also a spare mppt 75/15.
I tought about doing like this : 2 x 40 w in series wired together in parallel with an another 2x 40w couple .So it will be 2 couples on one mppt giving in 160 w /36v/4.4 A
And the 100w panel alone on the other mppt on .
I think this option might be the best for optimal efficiency ?
The Multi RS Solar uses about 250W with AC1-IN connected, is there a setting that will only connect AC1-IN if battery voltage goes low?
[image]Howdy trying to investigate this failure with my MPPT 150/100. Installed new solar panels and updated the battery wiring since the factory gauge (RV) was small and came from the factory cut / with exposed copper on the red wire... On battery alone with PV cut off, no lights and no longer available on bluetooth. Did notice a few hours before that it was 'rebooting' frequently / the bluetooth was not stable. It is connected to a Venus/Cerbo GX (w dual MultiPlus 3000VA 12v and 1,000 amp smartshunt). during that time, I noticed the battery configuration was wrong and corrected it (settings showed 24v battery, but was 12v). But found that the corrections did not stay. I wasn't sure if it was because Venus/CAN was setting things up and the configuration was no-op or not. But looking at the graphs, it looks like around the time of the failures it legitimately thought 24v and was not saving the settings, but you can see previously it did not have that issue. Back to the wires, 2ga (US) from panels and to battery (wasn't sure what to put on battery side so decided larger would just lead to less efficient charging on lower end, but not leave me in a pickle on the higher end.)
Questions I'm trying to solve:
Graphs :) - the missing time period is when the charger seemed to die. When that happened the multipluses also went down- so unaware of what happened during that time. Might be time to install a UPS for the "home lab" in the RV.
Battle born batteries 12v. So 14.2 is right.
Here 18.9v is, quite wrong. I think this is going back to that 24v setting I mentioned.
[image]nothing out of the ordinary with the pv
[image]if you're curious about multiplus since that would be the other feeder of dc voltage
Not seeing anything unusual on the battery either,
Oh, one thing that was weird too, the battery terminals:
When you setup a Multi RS Solar with ESS set to "Optimized with Battery Life" and the Minimum SOC is set to 51%, is this supposed to limit the battery discharge to a minimum of 51%? Reason I ask is that I checked my system this morning and the batteries had discharged to 33%. My concern is that although the grid started charging the batteries, I have no idea how low my batteries would have dropped to (No History on SOC). Is this a fault with the setup or the algorithm?
Can a 100/20 handle a 400w panel, I have a 440 amp battery storage, 12v.
I have a house connected to 3 phase electricity. I then built a barn and had the 3 phase connected via the junction box on the wall of my house. Everything works.
I have just had a Victron system installed. The installers, super guys, assured me that as the house and barn were on the same power source that the solar generated electricity would be available to both the house and the barn.
The solar set up works fine in the barn...but doesn't feed power to the house. The installers can't explain why.
I attach photo of the junction box on my house....two switches,,,one controls house, the other the barn. I also attach photos of the set up in the barn.
Anyone got any clues? Thank you.
hi simon i have submitted a g99 application to sp energy they are looking for
Hi, I have noticed that the new Smartsolar RS do not have UL certification, however the Smartsolar 250V do have the certification.
Is there any plan to get UL certification for this model?
Hello everyone, Please help me to select suitable Vectron products to fully off-grid solar solutions to achieve the following requirement. Peak power consumption 16kW. daily energy consumption is 145kWh. Day time -40kWh and night time 105kWh. waiting for your help.
I have a Multiplus 2 GX used as ESS. Seems to be working ok apart from the readings on VRM dashboard. Solar is not showing at all, no orange box even!
I have et112 meter for grid measurement and ac current meter connected to temperature input. Assistants on multi are ESS and ac current meter.
I can't find where to configure the ac current meter.
I have a question regarding the possibility of using an AC generator with an MPPT solar inverter.
So basically I have a wind power turbine, the generator is a 3 phases permanent magnet synchrone generator.
In order to have a DC voltage, I will use a diode bridge with a DC/DC converter to meet the requirement of DC input of the inverter.
Lets say I will use the Victron EasySolar-II GX (who handle a DC input between 38V - 66V) without battery, and I'm able with the diode bridge and the DC/DC converter to convert the voltage of the AC generator to a DC voltage that oscillate between 38V - 66V. Will the inverter be able to generate power and behave normally ?
I want to know too how the MPPT will work under those circumstances. Feel free to correct me if I'm mistaken, from what I understood, the MPPT algorithme changes the value of the voltage on the DC input in order to find and drag maximum power. In the system that I explained above, the source imposes the voltage I believe, how the MPPT algorithm will be able to find the maximum power point?
Feel free to ask more questions if I misexplain something.
Thanks in advance
Need some direction on how to setup a vehicle system for solar.
I already have EHU into victron inverter/charger which then can charge house battery.
I also have a split charge controller to allow the alternator to charge the house battery.
So house battery can be charged via EHU or Alternator at present.
Master battery also can be charged by EHU or Alternator.
I will have a dedicated battery charger for house battery as I will be going lithium so I will not be using the inverter/charger for battery maintenance.
Want to introduce solar into the mix.
How do I get the solar to provide power to house battery charger but also charge master battery. I have seen talk of trickle charge power on a second line but they don't seem common.
I know some controllers can have 2 outputs but then how do I stop too much power being delivered to the master battery with a second controller.
Thanks in advance.
I got a 5k MultiPlus II running with a set of 10kWh BYD LiFePo4 batteries (with their own BYD BMS) en two DC-connected MPPT's with a total PV-capacity of around 2400Wp and a Cerbo "running things"..
The Cerbo is updated to the latest firmware (automagically through the internet). The MultiPlus II is on firmware 2623470 and runs the ESS-assistant more or less with the default values of the German gridcode with internal NS protection.
The only thing I didn't let the assistant change, is the type of battery (because of the BYD-specific settings for Absorption and Float).
This time of year I have quite a surplus of PV-energy so I started experimenting with ESS (Optimized with BatteryLife).
For some reason the system is NOT feeding the surplus of PV back to the grid :-(
Only if I set the grid setpoint to a negative value, the system starts to feed back the PV to the grid at the height I set the negative grid setpoint to....
Otherwise, the BMS (I think) switches off the MPPT's so they don't deliver any PV anymore :-(
For some reason it does that when the BMS says (at VRM and in Remote Console) that the batteries are at 99% instead of 100%. I have no idea why it does that but this doesn't bother me too much ;-).
I set the minimum SOC (unless grid fails) at 95% otherwise apparently the system thinks it should feed the loads from the grid, even when there's still enough PV to do that and even enough to charge the batteries.
So not the actual surplus of PV energy is fed into the grid, but the value set with the negative grid setpoint...
So when there's a cloud before the sun and the batteries are still above the minimum SOC (unless grid fails) then the system feeds the grid from the batteries if the PV drops below the value set in the negative grid setpoint....
I probably have some setting "wrong" to get this result, but I can't seem to think of what could be wrong....
If someone has suggestions..... they are more then welcome.