solar

Ik ben onderzoek aan het doen naar energieopslag afkomstig van zonnepanelen, en een off grid systeem.

Ik heb al een bestaand systeem uit zonnepanelen en een omvormer die de spanning van de zonnepanelen omzet naar 230 V(AC). Na deze omvormer wil ik de quatro omvormer toe passen. De bedoeling is dan dat de spanning uit de omvormer hier op aangesloten wordt en deze vervolgens de accu kan opladen met 48 V(DC). De rest van de spanning moet kunnen worden gebruikt voor eigen gebruik, en als er dan nog rest is moet dit terug worden geleverd aan het net.

Hierbij is het ook de bedoeling dat bij een stroomuitval de accu er voor zorgt het bedrijf voorzien wordt van stroom, hierbij moet de 48 V(DC) van de accu omgezet worden naar 230 V(AC)

Is dit mogelijk, zo ja hoe?

Als dit niet mogelijk heeft iemand dan nog andere mogelijkheden?

Ik zoek dus een systeem zoals hieronder maar dan zonder generator en dan bij spanningsuitval dat de accu het overneemt

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Hi All -

Is it possible that when you update the MPPT to the latest firmware that some of the battery settings can be reset to default?

I could be mistaken on what my settings were before but I am a pretty detailed person and wouldn't expect that I had my MPPT settings incorrect.

That said, I just upgraded my MPPT firmware to the latest, 2.19 or 1.42, (idk which one to reference) and I noticed that 2 of my settings were off:

1. The Temperature Compensation setting was set to -36.00mV/F, which I believe is the default. I would have had that set to -20.00mV/F as I have Lifeline AGM batteries.

2. The Maximum Absorption Time setting was set to 2H, when I would have had that setting to 6H.

Again, while very unlikely, there is a possibility that I set these to what I saw but I just wanted to check if I need to be checking my settings after every update.

Thanks,

Tom

Hi, i need to add more panels to my boats solar system , i i am already using a 75/50 controller with a colour control and 12v/3000 multiplus, the controller is near to its limit, can i add another controller to the system , will it cause any conficts ?

Many thanks

Gordon

I have 3 100w panels connected to a SMU microtek 3012 to a microtek 900 inverter it works fine for a few hours then the main light on the inverter starts flashing and going on and off. I have tried different inverters and switching the smu. Anyone else have any Idea?

I have a Victron 100/20 MPPT. its connected to 2 x 100w solar panels in series.

It is only connected to my batteries and the load side is not connected. These are 2 new this year 115ah Halfords Leisure batteries.

Its been working fine charging my batteries with and without a load on those batteries. Then all of a sudden it starts to over read the voltage at 13.**v ), when my other volt meter (connected via a shunt) is reading 12.**v.

No matter what i do it wont read the correct voltage and just keeps the charging in "Float" so doesnt charge the batteries. If i do the cycle thing in the settings it then puts a charge into the batteries. This is also with everything disconnected except the panels as well.

The panels are working fine, and there is not issue with the wiring. Nothing physical change from when it was working till now. Is my MPPT fooked?

Hello Guys,

I hope you are doing fine. I have some issues with my installation. I have a 3-phase backup system of quattros and a solar inverter connected at the output of the quattros. AC input of quattros is connected to the grid and feed-in is allowed.

Please have a look at these two pictures

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Here AC-in power = - 4761 W

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But in the menu, AC-in power = - 2324 W

Why the two values are very different? -4761 W is more than the double of - 2324! And I thing -2324 is the correct value as solar production is 2580W and power going into batteries is 216W, then the surplus feed-in energy must be around 2580 - 216 - power loss in quattro.

Thanks for your answer.

Hello folks, a couple of questions. I have a VW camper with a solar panel c/w Bluesmart 75/15 MPPT controller connected to a SuperB Lithium 90Ah battery with built in BMS. I need to add a mains (240V) charger & am looking at either the Bluesmart IP22 12/15 or the Bluesmart IP65 12/15. Reading through the instruction manual for the IP35 version, I see that a "Test" is carried out prior to charge commencing,:-

The TEST LED will flash as long as a charge pulse does

not increase battery voltage to more than 12,5V resp. 25V.

If the flashing persists during several minutes the battery is

probably damaged (internal short-circuit): disconnect the

charger.

A false rejection may occur if a load is simultaneously

draining a very weak or fully discharged battery during the

test phase: disconnect the load and repeat the test.

Question:-

1) If during the test phase, the solar charger is charging the battery, would the IP65 12/15 charger see the increased battery voltage & assume a fault & fail the test?

2) Is the IP35 version designed to run in parallel with other charging sources? If not, would the IP22 version suffer the same problem?

3) The charger will be permanently hardwired to the to the battery. Depending on circumstances it's highly likely that the charger maybe powered up whilst loads are simultaneously connected, (fridge/lights/diesel heater etc.) these loads may be running during the "test" phase, would this be an issue for either charger in question?

4) If the "test" fails, does the charger lockout until the next power up cycle or does it retry after a period of time?

5) Is there a more suitable charger for the application, it must be Lithium capable & be suitable for permanent installation in a small space, preferably fan-less.

Thanks for any help.

Hello,

actuall my consumers are direct connected to the battery, not using the "load" from the charger.

Now I will change my cables and connect the consumer to the charger to see the consumptions etc.

Question:
Where is the measure? Plus or minus?

I think, Plus or Minus (one of them) from Solar, Battery and Load will be connected together (have a direct electric connection). In my case I only have the need to change one wire (plus or minus) and bring this wire to chargers "Load" (and the other can be still direct connected with the battery (plus or minus). And mot both from my consumers ...

Hi All, kind of new to all this I have a mppt 75/10 it used to show the battery state as Float most of the time now it always just says off If I put some load on it the load output state changes. Do I have an issue somewhere battery voltage is 13.02v being charged off a 120w panel. Im just a bit confused as to why it used to always say float now it just says off. Thanks for any advice.

Cheers

Chris.

Hello,

I have my system running scheduled charging (from grid) starting 8:00am until 10:30am.

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I have seen periods where there is more than enough solar availability but it's not being inverted for charging and/or covering consumption:

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as seen directly in the console:

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and also as seen directly from the sky:

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but after a while it goes back to normality and solar becomes main input

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can anyone help to understand the reason this happens? It's very usual and I don't know how to limit it.

Thanks in advance.

When parking boat in a no load scenario, it would be good to solar charge LiFePo4 only up to only 80% SOC. This is good for battery life and when starting engine and leaving dock 100% is reached pretty soon anyway. Can this be accomplished with mentioned products?

what would be the best to optimize the battery charging with those equipment's in my small motorHome

- MPPT-100/50

- BM-712 with temp

- Smart Battery Sense for the Starter battery of the vehicles

How will the temperature sensor will be used in this case?

Will the MPPT-100/50 will take the BM-712 Temp in consideration ?

I've read the manual and similar community posts on this but haven't been able to determine the answers to these questions.

1) The manual and faq say equalization times out at (absorption time / 8) or (absorption time / 2) for a custom battery type. Is "absorption time" the "max absorption time" that I have configured in the MPPT settings (9 hours) or is it just the absorption time that the controller ran absorption cycle for on that particular day? (typically 1.5 hours, since I don't deep discharge the batteries at night)

If it's the latter (absorption time on this particular day), that's pretty odd because equalization on lead acid batteries typically needs to run for 4+ hours, and the time required shouldn't be related to an arbitrary factor like what voltage the batteries started at that day.

2) The manual/faq also say equalization will stop if the controller current goes above 25% of the bulk current (for lead acid batteries). With a 75/15 controller, that's .25*15 = 3.75A. Does this mean if my refrigerator turns on (this is a solar setup on a boat), the equalization will stop? (the fridge draws about 7A, so it will appear that the charging current is above 3.75A although really it's not, because the 7A is going into the fridge load).

If equalization is interrupted for this reason, does it restart once the load goes away or does it give up for the rest of the day?

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I have 2 Solar chargers connected to a battery bank & a multiplus2 48v 5000

BMV 702 & CCGX

VRM shows Data from BOTH Controllers

CCGX shows second controller not Connected under devices

No second Controller is Displayed in CCGX

2nd controller connected via USB adaptor

Picts Attached

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i was just wondering about the multiple controller update and when it will come out and if it will have support for the 100/50 controllers. I'm about to invest in some 325w solar panels to replace my older 200w solar panels and want to hook up both at the same time

Can please someone give me an answer why no solid state relays work on load output of victron smartsolar 100/50.

I have done everything like in description.<TX cable ,Right configuration,the ssr works from 4 to 32 Volts dc.

Multimeter says load output of the victron has about 5 to 7 Volts. But no working.

Must it be a special ssr? Or is the smartsolar damaged?

I am in the final stages of designing a battery backup system with the Multiplus II. The main purpose of the Multiplus II would be to have a backup power source for when the grid goes down. The Multiplus II would be fed from the grid to ensure the batteries remain fully charged. This would be the first stage of the install and gives me a very good indication of the power draw throughout the day for my critical loads.

The second part of the install would be to connect a PV system (MPPT) that would keep the batteries charged throughout the day. I would then allow a certain % discharge going into the evening. The PV array will be sized based on the power draw of the critical loads and the solar yield on an overcast day on the shortest day of the year (New Zealand - relatively high sunlight levels). On sunny days there will always be excess power available and I would like to dump the excess power into a hot water cylinder. I am looking at including the fronius Ohmpilot that would be connected to the AC-out (non critical load) of the Multiplus II. This way there will only be limited amount of power going back into the grid. I will only be installing the fronius smart meter and leaving out the Victron smart meter upstream of all the electrical loads as the fronius smart meter would be the only meter that needs to determine if the load is dumped into the hot water cylinder or if it is being exported back into the grid. I assume this is correct? Below is an overview of how I would like the final system to look:

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I look forward to comments and feedback on the above.

Hi,

my setup is 1 MPPT 100/30 charging 4 x Firefly 110AH 12V batteries. While in absorbtion mode, the voltage is not kept at the Absorption voltage, it stays under the set Abs. voltage and rises slowly. It was my understanding that Absorption step was a CV step. Am I setting the charger wrong? see pics below.

thanks

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System:

2 x 12V 50A LiFePO4 in series

1 x SmartSolar MPPT 75/15

Questions:

1) Can I install (1) Smart Battery Sense on my battery bank (+) (-), than connect to MPPT.

2) Can I install (2) Smart Battery Senses on each of my batteries, than connect to the MPPT.

3) Is there any other product for monitoring each battery in the bank that connects to the MPPT.

4) Is it necessary to install adtl. products for monitoring or stand alone MPPT is more than enough.

Thanks.

I have a BlueSolar charge controller MPPT 75/15 that is causing interference. When the Blue Solar charger function is enabled and it is day time, it is creating interference with a car radio installed some distance away and is making the radio impossible to listen to. When the Blue Solar charger is disabled (through Victrom app) or when night falls, the interference stops. I am looking for advice on the best method to substantially reduce the noise coming from the BlueSolar charge controller MPPT 75/15.

Hi,

Equipment I already have:

160W 12V solar panel

275W 24V solar panel

210ah 12V gel battery

Two Victron BlueSolar MPPT 75/15 charge controllers

Planning to connect one solar panel to one controller and the other solar panel to the second controller and then both controllers to the same battery.

My question is: should I connect all my loads to one controller only or can I connect some loads to first controller and some to the second? These controllers have max 15A loads and I wonder if I can connect more than that to two of them? For example 12A load to one controller and 14A load to the second?

Will the two controllers still be able to monitor the battery state and charge it properly simultaneously?

Why is it that my MPPT charge controller wattage increases a lot when I turn on my van ignition ...I have it connected via the Bluetooth app on my phone...I have two 100 watt panels...I might be getting say 50 watt reading on the phone app and when I turn on the van ignition it jumps a lot higher to maybe 80watts...why is this ?

I have a 15kva Quattro with Solar, Batteries and a Generator.

It’s , set up to start the Generator at 6 kva.

I also have a decent 4kWp of solar connected to the system.

If it is super sunny and gaining 3kWp and the base load is 6kVa, I want the system to Use Solar + Batteries until 8-9 kva, and then the Generator....

How do I prioritise this?

Hi I have set up a system on my boat I have 1600W solar Victron MPPT, 600Ah 24v battery,Quattro inverter and Venus GX and bmv 712. And 10kw generator The question I have is when Im on shore power the batteries are fully charged is there a way of prioritising the solar over the grid feed in as many marinas charge 40 cents a Kw hour other then setting up an ess assistant I don’t want to feed in just save money, I’ve read all the ESS documents just trying to get my head around it. At the moment I just unplug the shore power during the day.

I have a battery bank on a norrowbaot, charged by an alternator and mppt solar. Monitored using a BMV702.

bMV settings are

Charged voltage 13.2 as recommended in the manual for a 12v system

Tail current 1.5%

When charging via th alternator everything works fine. SOC reads 100 once the current going in drops below the tail current. This is usually when the “current consumed” is displaying at close to 0AH.

However, when the battery is being charged by solar and the engin is not running, the SOC will jump to 100% even when the “current consumed is still way off 0 (maybe at-20AH. If you then start the engine the current going into the batteries will be way above the tail current suggesting the bats are not fully charged.

The issue I think is that the MPPT controller regularly outputs less than the tail current into the batteries ( we only have. Single 160w panel, thus making the monitor believe that the tail current has been reached and the battery fully charged.

2 questions

1.does my assessment of the situation seem reasonable

2. Is there a way to prevent this (maybe by changing the charged voltage or tail current?) would there be an issue changing the BMV charged voltage to 14.4 to match the adsorption voltage set in the mppt controller?

Thanks in advance for any advice

hi,

i have a blue solar 150/60 and some raylite m-solar cells.

is someone able to please provide me with the correct settings to enter into the controller app?

thanks so much

I notice we see these dips while we charge our solar. We have 9x170 and 150/100MPPT and

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8x100Ah Battle Born batteries.

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Hi, Newbie here. Just received a 50 W victron panel. Does the cable connection get crimped, please see picture? I assume it doesn't connect beneath the screw head, as it is partially soldered.

Also, the RH connector looks slightly bent. Will this be ok?

Thanks

So, this happened a couple of hours earlier. Nothing changed in regards to connections.

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It just stopped charging. All settings are as they’ve been for the past year or so. Charger swaps between bulk and absorption every few minutes, but there is no load going into the battery.

Solar voltage going up and down according to irradiance, but current stays at zero.

Any ideas?

What is the total solar power in a 3 phase system with 3 x 48/5000/70 fed by a Fronius Symo 15kw PV inverte being fed by 18kw of solar panels. I need to get my PV solar inverter support assistant set correctly. Thanks for any help anyone can provide...