ESS

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Hi I'm Marian
My off-grid installation consists of: 
Inverter MultiPlus 12/3000 / 120-50 Firmware version 465;
Venus GX Firmware version v2.33;
Battery Monitor BMV-700 Firmware version v3.10; 
Controller Xantrax MMPT60x150; 8 panel 200W
PV Inverter Fronius Primo6.0-1; 15 panel 320W. 

1. When installing ESS assisant whatever it is in VE config 3 is not found in VRM.
 Why? What's wrong? 
2. How do I disable grid code selection Germany? I accidentally entered without a password and I cannot unblock grid Germany anymore. 
I attach the screens with my settings.
Thanks
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Quattro 48 volt/10000 VA/140 AMP

16 batteries AGM Lead acid gel

15 solar panels

we have had no municipal power for 30 hours. Our inverter battery percentage is up to 56% now but we keep getting an ESS overload. Can you help please. We are not operating any machinery at this point.

I tried to describe my problem in a file with drawn diagrams of my system. Please see the attachment.

Question1.pdf

Planned: Multiplus-II + MPPT + Venus GX in ESS mode with grid feed-in. The house has a backup generator in case the grid fails which can be started manually, switching also manually from the grid to the generator.

Once the house is connected to the generator, can it be avoided that the Multiplus-II injects towards the generator?

I have not found an assistant or any other means to disable grid injection (towards the generator) and disable LOM (Loss Of Mains) detection based for example on a signal to AUX1 input. The signal can come from the same switch that selects grid or generator (with an additional circuit).

Is there a way to make this work with Victron-gear only? Of course without having to modify the ESS/Multiplus-II configuration manually before and after using the generator.

Can an external control (Raspberry) disable grid feed-in when the generator is connected?

Can the LOM detection be changed/disabled by an external control?

Or better bypass the Multiplus-II when the generator runs (and not charge batteries)?

A Quattro is not an option because of grid feed-in regulations.

Hello everyone,

here is my system:

2 MultiGrid 48-3000-70 (MASTER & SLAVE)

8x6 Battery Crown 350ah

PV inverter at AC out 2200w solar pannel /PHotowat(DANFOSS) ULX1800i

. So I use ESS ,it ran perfectly for about a month, which means I could charge and discharge the battery with energy from/to grid ,setting grid point to use the battery at night with A/C

. Until one day,nothing is working,and my Multiplus stills in Absorption and Float

Sometime the ESS reacts to the setpoint ....My SOC stills at 97% to 100% and most time, these LEDs Mains On, Absorption and Inverter are on at the same time and now the Inverter led stop lightening...

I've done:

-all firmware to the latest

-resseting

thanks for your help

https://vrm.victronenergy.com/installation/43376/dashboard

@Daniël Boekel (Victron Energy Staff)

Good mornig. My system consists of

• 1 x Multiplus 1600/12/70 (just bought after amy old Studer went defect)
• 1 x Color Control
• 1 x BMV 700
• 2 x Tristar MPPTs TS-60 MPPT
• OPZV 12V/440Ah

Is ist possible to set up a ESS-system with non-Victron-MPPTs?

If yes - what about the settings?

If no - is another setup possible (f.i. with "virtual switch")?

Thanks a lot! Michael

Evening, am based in Zimbabwe, have set up 2 Victron Quatrro 8Kva systems, each with 12 x Jinko 385watt Mono panels, through Victron MPPT 150/100 smartsolar can, 3 each pylontech batteries -

1st - AC1 in is either generator or grid, no AC2 in connected

2nd - AC1 in is generator, AC2 in is grid

i used the "other - not compliant to any grid code standard" in the grid code selection

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then used the ESS assistant

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on the venus GX - as attached

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this works fine when i have grid power - there is no feed in to the grid - when i set the grid set point above 300watts.

however when i run the generator during the day when there is plenty of sun on the panels, but generator power is required to run other loads not connected to the inverter, which feeds either into AC 1 in or AC 2, as there is ESS enabled, this seems to cause the inverter to hum loudly and switch between mains and inverting very rapidly

is there a way in which i can shut down the ess when i run the generator - or is there another way in which i can set up the system to run but make maximum use of the panel array wheter i run generator or grid?

thanks

cheers

alex

I Installed a multiplus 2 with 10kWh of BYD batteries in an ESS system first half of the year, it worked well for a month or two then started bringing up error 24, I followed the instructions for what to do for error 24 and sent them off to my victron distributor, victron decided to send me a new unit, I intsalled the unit and instantly had the same problems, after lots of return visits and firmware updates in the hope the issue had been found and resolved which is costing me lots of time and money ive realised that the unit will go straight into error 24 with the current sensor plugged in, If i remove the sensor and restart the unit it starts fine then plug it in it begins to act as an ESS system should with no error code, the problem being that i simulated a power cut by turning the AC isolator off and then back on, and as the sensor is in it goes into error 24, i have updated the firmware twice and replaced the unit. Its a real shame as its also costing the customers confidence in the system i have installed for them, and I cant keep going back to resolve this I have seen on the VRM it is in error 24 again today and i went to them on friday. It has the latest 2629 467 firmware intalled and the UK G98/G99 grid code. Please can you sort a resolution for this ASAP.

Hi Community,

I run ESS with Battery Life mode. I have set minimum SOC to 70%. After some days with little sunshine the active SOC limit is at 80%.

It alternates between discharging to 80% and charging in "float mode" and it charges very slowly even if there is a lot of PV power.

This way I am stuck between 80% and 83% SOC.

The lead battery voltage is at 51,6V (12,9V) which seems to correspond to 100% SOC.

So I assume that the battery is actually fully charged and the Multiplus GX battery monitor is just wrong currently. How can I get the battery monitor back to 100% ?

Thank you for your hints.

Best regards

Daniel

Hi Folks,

i have a tricky question in regard to ESS and Phase compensation.

After feeding my house solely from the battery for a certain time (even days) i noticed that acc. to the VRM Dashboard significant amounts of energy (Kwh rather than watth) were utilized from the grid (I confirmed this via an independent bidirectional energy meter)

ESS and Phase Compensation is activated and I can see that the inverter is constantly compensating for the consumption on the Grid Phase 1 & 2 in order to reach the set 0 watt grid consumption aim set in the settings. Of course in case of sudden large consumers are switched on / off the Inverter is regular “to Slow” to compensate or “overshoots” energy into the grid and It is clear for me that of course the inverter will never be fast enough to compensate sudden consumers on a different phase resulting in small amounts of feed in / consumed energy from the grid. But I did not expect that I use 30-40 % energy from the grid during 24 hrs even if I was inverter/discharge mode at all the time and never even closely exceed the capacity of the inverter.

I have an Multiplus II, grid tied with ESS and active phase compensation, 3 Phase measuring via ET340.

I see 2 possible error sources:

The ETH340 is installed at the wrong place, or the ET340 himself is adjusted wrongly (and I have no clue how to adjust)

Any ideas or is that normal?

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Hi,

Should a ESS system export to grid when ESS mode is Keep batteries charged and no solar is available?

I might be misreading the console, but is negative power not exporting to the grid?

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Kind Regards

M

hi all

i just want a confirmation about a wiring.

in a ess system with lithium battery and a vebus bms, multiplus, mppt (small one with no remote switch) and a color control gx.

i had understood that the color control gx can control the mppt and in case of the vebus and ina fault, the colorcontrol will stop the mppt.

but after speaking with another guy, i'm not sure and i thinking that i have to had a battery protect to disconnect the mppt because the vedirect of the mppt is already use !

can you confim this

best regards

Hello everyone,

I'm using 3 MultiGrid and Pylontech Battery without any load at the output. This setup has no particular purpose at this moment, but my task is to prepare a GUI for a communication between the Venus GX and a PC using Modbus. So I use ESS Mode 3. I'm frequently switching between ESS Keep Battery Charged Mode (to charge the battery when I'm away) and ESS External Control (to test and to run my Modbus GUI).

Both modes ran perfectly for about a month, which means I could charge and discharge the battery with energy from/to grid through Modbus communication. Until one day, on which the settings in MultiGrid might have been changed. Since that day, both modes don't work:

In ESS Mode 3, Venus GX doesn't react to the setpoint I sent, but data such as battery SOC can be read as usual. In Keep Battery Charged Mode, the battery is not charging, and most confusingly, these LEDs Mains On, Absorption and Inverter are on at the same time.

I've used Victron Toolkit App to understand this LED combination, but this combination is not available both in the app and the manual. How can these problems, or most importantly, the Keep Battery Charged problem could be solved?

Your help is highly appreciated. Thank you.

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Hi, I have asked this question previously - but after 12 months the issue is continuing.

The system is 3 x Quattro 48/5000 setup in 3 phase. After the batteries have been charged by PV for the day, often the BYD LifePo4 batteries are between 75 - 100% - the system is operating in ESS mode as expected, the house output loads are low, perhaps 1200w or 1500w is drawn on Phase 2.

Please see 2 images below:

We obviously expect the load energy to be drawn from the battery, instead it is taken from the grid supply? this could occur for 5 or 10 minutes.

The Carlo Guzzi grid meter is balancing the phases, ie -719w on L1 and +785 on L3

Im well familiar with the operation of ESS systems and settings, but this one has me confused.

I have tried the "switching off the grid meter" I have tried lowering the Grid set point to 0 and even -20w. But day after day the problem continues.

The image below from VRM Portal shows 0.4kw/h per hour from battery! this should be near zero, as the battery are fully charged.

Is this simply an error in the VRM display calculations, that could be proven by taking readings from the Household grid revenue meter?

This issue is obviously annoying.

Thank you for your consideration with this matter.

Glen McDonald

Elementary Solar

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Hi, I am asking since I have had an instance where there was a need to change battery cables with power on the ccgx pv's switch off and disconnected the main battery, the 10kva Quattro went to passthru. Can this be done( ccgx ) online still. I believe, should the ccgx loose power all bets are off and victron should be shut down?

Hi everyone!

I'm at the design stage with my installation, I have some knowledge but not much experience hence I thought it may be a good idea to ask for a second opinion from the community. At the moment I have 6 solar modules 300w Voc=45.3 and 2x 24v 250Ah lifepo batteries I want to set up an ESS with the scope to selfconsume as much energy as possible since there's no more feed in tariff in UK. I'm also planning to get another 12 solar modules in the very near future but on different array/location. We don't have any grid loss, so no generator or other sources of energy are needed. I monitored my daily consumption and it's on average 7kw daily with peaks of 3.5kw except shower which is 10kw but is not reasonable to cover it with that size inverter. Ideally I would consider 5kva,

The question now is

Would you go for a 24 or 48V set up?

What inverters work best in ESS set up? the metering/current sensor will be about 32m away from inverter.

I'm leaning more towards a 48v for efficiency but choosing inverter I find a little confusing, if any more details are needed I'll be quick to add it

Much appreciate your time

Regards George

What am I doing wrong here?

I have been trying to get the system to recognise the ET112 energy meter but no can do.

I have a Venus GX device (Firmware v2.33) connected to a Victron USB RS485 cable which is connected to 10m of Cat6 FTP solid core cable which is connected to the ET112 energy meter in my consumer unit.

Venus GX --> USB to RS485 cable --> 10m Cat6 cable --> ET112 energy meter.

Please see pictures below for actual wiring connections.

Upon connecting to Venus device I see multiple flashes of the red led only on the Victron USB to RS485 cable.

I know its trying to tell me something about the connection but I have no documentation explaining the meaning of the flashing sequence. All I can guess is that its telling me the connection is at fault somewhere.

I then found Carlo Gavazzi UCS (Universal configuration software) which runs on Windows 10 and is designed to talk to the ET112 energy meter and configure it and just check that it is working.

I then unplugged the USB to RS485 cable from the Venus GX and into my laptop running this software.

You guessed it, It came alive.

The UCS software immediately connected to the ET112 via the same wiring and I could see that it was working!

It would seem that the wiring from my consumer unit to the USB RS485 cable is correct for the Laptop but for some reason is not acceptable to the Victron Venus device.

So if anyone out there can look at my setup and hopefully spot what I am doing wrong I would be most grateful.

I have some further pictures showing the UCS software settings.

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Cat6 cable on the left to Consumer Unit and USB to RS485 cable on the right. I have double up the GND connection.

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Software and version.

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Software has connected to meter and is showing data.

The next few pictures show the settings for the meter.

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i just updated all my sites and found on all of them its not keeping the AH setting .Is it only me ?

Please consider to add a "Discharge Power Limit" setpoint in ESS setings. Similar to SOC setting, it should only apply when grid is present. I think I will find this more useful for balancing self-consumption with SOC for backup power than my current SOC and grid set point manipulations.

Thank you.

I could use some help defining the disconnect frequencies in ESS for my PV inverter shown here; any help is appreciated!:

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I live in the US, my inverter is 60Hz first off, these are default values I have not modified yet. My Inverter is a SolarEdge HD10000-H US. Active Power control via frequency is defined here in the manual, and can be set by the user:

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It would seem that "P0 in my inverter relates to "The solar converter will start reducing its output power at XX Hz", I am guessing that P1 would be the next setting "Output power will be reduced to minimum when frequency is at XX Hz".. I am not sure what to enter for the final disconnect value though. The full manual on Power Control can be found here, https://www.solaredge.com/sites/default/files/application_note_power_control_configuration.pdf

Can anyone provide any recommendation as to how I should configure this in ESS and which values should be selected for P0 and P1 in my inverter?

Our configuration:

Quattro 48/5000, 150/85 SS MPPT, 3x PylonTech US3000 LiFe batteries, 10kVA Bundu Power LP Gas Generator. Battery BMU communicating on Can-bus.

Grid connected to AC-In 1 & genny to AC2 (for grid priority)

All components on latest Firmware

ESS Configuration

Optimized (without battery Life)

No feed-in

Battery Min SoC = 10%

VE Configure

I have tried many combinations, current settings:

UPS Function off

Dynamic Current Limiter on

Weak AC on

Power Assist on

Problem

Generator call is made at 5% SoC. Generator connects and starts charging battery while supplying small load (500W). Charge to battery increases and generator load gently increases to approximately 2kW, at which point the charging stops and load on generator drops to 500W (AC load only). This cycle repeats ...

With UPS function on, at the 2kW genny load the Quattro completely disconnects the genny, only to re-connect and repeat the process.

Voltage and frequency from genny remains stable and well within tolerances during these cycles. No big loads or demands on AC.

I am out of ideas. Please advise where the problem may be.

Hello,

I have a Quattro 24/5000/120 connected to a pair of 12V lithium batteries in series, with a BMV 712 monitoring them.

I also have a backup generator in the system wired to a transfer switch.

I am adding PV panels (and Victron MPPT controllers) to use to both charge the batteries and supply AC loads when able.
ESS seems the only solution that allows this, as without it, my MPPT controllers act primarily as battery chargers and no portion of the solar used for AC loads.

My questions are,

1) Can I please have the grid code password?

2) My installation is in the US. There is no US gridcode option, so I assume I will be using other. Is this correct?

3) In using other as a gridcode, I have no desire to feed any power back to the grid-main. So I intend to set feed-in to disabled and to set LOM to B. Are there additional settings to review?

4) With no Feed-in and LOM to B, that should disable any possibility of sending current back out AC input 1 (grid-mains), correct?

5) My visual indication that LOM was successfully detected is when the CCGX show no mains input. At that point there is no possibility current could exist on AC1 (grid-mains) Is this correct?

Thank you in advance for your help.

I need to run multiplus-II Gx in ESS system like the

herunder figure.

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I need also to have no enegy flux to the grid side (stupid regulatory requirements in FRANCE).

To meet this requirements i expect to adapt in "real" time the sink/source energy flux of the multiplus-ii Gx inverter charger is there a way to do that ?

Michel

I am running a MultiPlus with ESS Assistant installed. I had charge current set to max in VEConfigure, but had Limit Charge Power turned on in ESS, along with Limit Inverter Power.

This had been working just fine until I had to remove the BMV-712 temporarily. When I did this, I turned on the Battery Monitor option in VEConfig for the MultiPlus. I set the Battery Monitor in Venus OS in System Setup to the MultiPlus. However, now whenever charging occurs, it is at the maximum current, not what I have set Limit Charge Power to. Can anyone explain why this does not work with the MultiPlus Battery Monitor, but Limit Inverter Power does?

A Victron dealer (stroomwinkel-dot-nl) told me that none of the Victron charger/inverter combinations are certified for ESS usage in the Netherlands. Can anybody from Victron confirm or deny this? Seems a bit odd for a Dutch company not to have this in place.

And what if an ESS installation with a non-certified Victron product is used in the Netherlands, what could be the consequence?

Hi,

I have a system with 2 MPPTs, Quattro 5000 24V 50/70 and Color Control GX.

When I connect to the shore, I want to use energy from the solar panels in priority, and complement with the grid. I do not want the batteries to be used at all, i.e. no discharge of the batteries.

Using the Keep Batteries charged mode would be great, but ESS is not possible on a boat (why?) and I've no anti-islanding material. Using hub-1 v2 assistant only use battery voltage and will permit batterie use. Virtual switch is not enought intelligent. Etc...

If you have a solution for a boat, it would be welcome !
Thanks in advance,

Jean-Luc

My system consists of 3 by 10kVA Quattro's, Venus, Fronius Grid tie inverter downstream of the Quattro's and a 15kVA diesel generator (3ph) connecyed directly to the Quarttro's. My battery is a Freedom Won 30/21 lithium Ion battery. The primary back-up supply is the Grid with secondary back-up the generator.

The Quatros are used to prevent grid feedback because my grid consuption meter consist of 3 single phase "impulse" meter that measure both forward and backward energy flow as consumption.

The battery management of the Freedom won battery does not always alow the battery to discharge the same SOC (State of charge). If the battery was not fully charged the previous day the minum state of charge is increased so that (I think) the averge state of charge is maintained at a specific level. This makes it difficult to use the state of charge setting to optimally start the generator when the grid fails and the batteries reach their minumum SOC.

If the generator starting is set to battery voltage - the generator starts irrespective of the actual battery voltage when the grid fails and irrespective if the sun is shining and I am harvesting energy from the sun! (Defeating the purpose of using the sun). and shuts the Fronius down.

What is the correct way to set this system up?

If I download all datat from VRM I see that there is a variable "#1 SOC Low" which changes to On just before the supply is changed from battery to grid. Is this not a variable that can be used to start the generator and then use say a SOC of 50% or some other value to switch the generator off.

How do you change from generator back to solar once solar is again avalable but the generator has not yet reached it switch-off value?

Please help?

Good day all .

I have a victron quattro 5kva setup with a mppt 250/100 and 10kwh of lithium batteries. Ac input 1 has mains electricity. Ac input 2 has generator input. Now with out the ess assistant geneator charges batteries and supplies loads through the inverter with no issues .

When i enable ess assistant the system functions with solar and grid energy as required. However should the user require generator to backup power or charge the battery the inverter will constantly flip on and off between charge and not charging . The relays will stay on for about 2 mins and off . Then on again then off again. To try all options we have disabled ups mode. And enabled weak ac input. This still doesn't make a difference. I can only assume that this has something to do with grid feed in which is set to grid type other with no feed in . Loss of mains on both ac input 1 and 2 is set to type b safe .

Would changing the type b to disabled on the ac input 2 correct this problem with no adverse effects on the 14kva generator input 2 ??

Or should i be looking for another solution .Thank you in advance for your help and assistance.

Does anybody know an electro installateur who has experience in setting up an ESS (victron) for PV in Berlin?

My electro guy is a little afraid.

CCGX + multiplus 2 + pylontec 2000

Is any electrician capable of setting this up?