ESS

Bonjour,

J'ai récemment installé un système MultiPlus 2 5000/48 V470, CCGX v2.52, MPPT 250/60, BMV 712,

lorsque le MultiPlus 2 est configuré avec un assistant ESS 0176, celui-ci refuse de charger les batteries Lifepo4 via le secteur, il indique Capacité Directe.

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En retirant l'assistant ESS de la configuration, le Multiplus charge normalement, mais désactive la charge du MPPT.

Si j'essaye d'activer une charge d'égalisation le CCGX me renvoie un message "Chargeur pas prêt : légalisation ne peut pas être démarré"

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assistant ESS est configuré pour fonctionner avec un BMS CAN, mais visiblement le problème ne vient pas d'ici, car j'ai fait une configuration de l'assistant ESS en batterie plomb et le résultat est pareil le MultiPlus ne veut pas charger.

Avez-vous une idée d'où provient le problème ??

Est-ce que je dois essayer avec une ancienne version de l'assistant ESS ?

Merci pour votre aide.

Alexis

Hello,

I recently installed a MultiPlus 2 5000/48 V470, CCGX v2.52, MPPT 250/60, BMV 712 system,

when the MultiPlus 2 is configured with an ESS 0176 assistant, it refuses to charge the Lifepo4 batteries via the mains, it indicates Direct Capacity.

By removing the ESS wizard from the configuration, the Multiplus charges normally, but deactivates the charging of the MPPT.

If I try to activate an equalization charge the CCGX sends me a message "Charger not ready: legalization cannot be started"

ESS assistant is configured to work with a BMS CAN, but obviously the problem does not come from here, because I have made a configuration of the ESS assistant in lead battery and the result is similar the MultiPlus does not want to charge.

Do you have any idea where the problem is coming from?

Should I try with an older version of the ESS wizard?

Thanks for your help.

Alexis

Two Phase ESS setup with 2 x 48/8000/110 Quattros, 15kVA three phase generator with Titan 48/50 Charger on third phase.

Firmware: CCGX 2.52, Quattos 469.

Generator on AC-IN-1 with current limit of 14 Amps. All good while loads are low and system in Bulk, charging battery. Current hovers around 12 - 14 Amps. The problem I have is when a large load turns on, the mode changes to "Pass Thru" and excessive current is drawn continuously from the generator. I was monitoring the system when the 3kW water heater came on. I watched the Quattro draw 27 Amps from the generator for 30 seconds before I turned the generator isolator off. This is virtually twice the limit set.

Dynamic Current Limiter - disabled

UPS Function - Enabled

Was going to try the "Dynamic Current Limiter" but the increase in current is not temporary. It matches the loads applied and completely ignores the “AC Input Current Limit”. Also I don’t want it working while connected to the grid.

Please advise if I’ve overlooked something.

Hi !

I'm planning the installation for my Multi Plus II 48/3000 on grid ESS (zero feed in).

The Multi Plus II is only connected with the AC-IN terminals to the grid. The two outputs (OUT1 & OUT2) will not be used.

What is the recommeded fuse on AC-IN?

From my understanding in that case max. 3000kW will flow through the wires which leads me to the assumption that 16A are sufficient.

Please give me advice.

Regards,

Dirk

Hi all,

We are about to move into quite a remote house which we know the area is effected by grid failure, plus i would like to be able to run mostly from a stored solar system. My intention for how i would like the system to work is that during the day, PV will charge the batteries and power any small loads (We will both be at work so don't expect much draw here). In the evening i would like the house to mostly run off the inverter and batteries. When/if the batteries get to 40% SOC, i would like it to swap back to grid power. (There is once sentence in the ESS that states when battery power is not available, the system will buy from the grid). I would also like this to be the case when the power demand exceeds the inverters capacity, i would like it to be either topped up or swapped over to grid power, is this possible?

If it gets to a preset time, say 6pm and the batteries aren't at say 60% SOC, then i would like to set a charge condition that the charger will kick in from the grid supply, in case of grid failure (I know this is possible from the ESS manual)

If grid failure occurs, and i discharge the batteries to say 10%, i would then like the generator to be auto started to charge batteries/run loads (Again im fairly confident from reading manuals that this is possible)

I don't intend on using the AC-OUT2 on the quattro as we wont have many non essential electric loads, No AC, Oil fired heating and hot water ect.

I have attached a quick diagram of my intentions below. To reiterate, i guess my main questions are;

If grid power is available, but the quattro is working from batteries, is it possible to set the quattro to power the loads from the grid once the batteries reach a set SOC? The ESS manual refers a lot to disconnecting loads at certain preset SOC's, but i just want it to power from the grid instead of disconnecting loads.

The second is in the case of overloading the Quattro inverter, when grid power is available. Will it top its current capacity up with grid power? Will it switch to purly grid supply instead and bypass the invertor all together?

Can the Cerbo and touch 50 run ESS? They arent mentioned as compatible in the ESS manual but i assume the manual is older than the products? Also, is it possible to run two touch 50 displays from one Cerbo? So i could have one by the setup in the garage and one in the house?

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Thanks in advance

Rich

My system is a new system based on two Multiplus II 3000/48 connected in master/slave, two 150/45 MPPT's, CCGX, and a BlueNova battery connected via Canbus.

I have the latest firmware installed on the MPPT's, Multi's, and CCGX.

When the system is physically disconnectted from the grid it is functioning perfectly supplying the critical loads and charging the battery during the day and running off battery at night.

I'm currently trying to implement ESS.

During the day when the contribution from the MPPT's exceeds the AC critical load it functions as expected in charging the batteries and supplying the critical loads.I have set the grid setpoint to -20W to always have a slight export to the grid.

However as soon as it starts getting dark the inverter switches to passthrough mode and supplies the load from the grid even though the battery SOC exceeds 98%.

Are there any other settings on the CCGX or the Multi's that I am missing?

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Hi

I'm expecting to see an option called

Inverter AC output in use

Under ess option but its not showing up like I see in the ess manual

I'm using a cerbo and a multiplus2 3000/35

Ac-in is connected to the grid and ac-out1 is connected to a set of sockets via a fusebox., ac-out2 is not connected

My multiplus has the current sensor connected to the house grid in and seems to show all ok.

A pv inverter is on the Ac-in side

No pv inverter is on the ac-out1

When I view the console on the cerbo I'm shown grid, ac-out the multiplus and battery but no critical loads, the ac-out seems to relate to the house power use minus any pv output if any, I have devices connected to the ac-out 1 and aes mode is enabled on search

What am I missing?

Mark

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Hi

I have recently switched from the CT to the ET112 and noticed something odd

I have a Multiplus-II 3kva + ESS + 140Ah 48v Li-Ion + Batrium BMS (CAN-Bus) + Cerbo GX + PV on ACin

Everything is working fine expect I have noted the following oddity

I was uing the CT and could see the MP2 quickly adjusting to the PV lows and spikes during cloud movment and demands on the ACin during normal operation mode, but since switching to the ET112 I was able to see the MP2 is now really very slow at adjusting the inverter power output and charging, so much so that I can see 1.8Kw export happening from the battery when the sun comes out for 5+ seconds and importing while charging due to the cloud covering up the sun, this is very odd becasue with the CT it was super quick to change and keep the grid at Zero import or export.

I think because the metering has been moved to the Cerbo GX this now has to tell the MP2 to adjust I just wasnt expecting it to be so poor at controlling it with such a slow delay

Everything is working fine just really slow, I'm not runnign anything extera or doing anything extra with the cerbo gx, it is however in superuser mode running v2.52 (came out the same day the cable arrived to pulg in the ET112 so unsure if its a v2.52 related or just expected behavoiur) and i have node red connected to it, no perf issues though and only 1 flow (your charge at night flow) connected to it. Top is not showing any processes that would slow this device down.

Is this expected behaviour when using a ET112 or any Grid meter?

Regards

Mark Boys

Have 3x systems with similar behaviour. All 3x 3phase systems with Lithium Batteries in ESS mode. When grid fails, loadshedding, get inverter overload error and inverter switch off. Need to manual start with toggle switch. We can switch the main breaker off 100 times and no problem. When the council switch off the grid then overload. It sometimes is preceded with low battery voltage message VEBus but voltage does not drop under 53V. Most of the time it happens at night when there is very little load. Have quadruple checked wiring and comms cables and fuses etc. Have set the V mains disconnect higher to 200V on one system but still issue remains. Can have a look at system called Carreg Crescent for example. Our very experienced distributor for 12 years now also not sure what can cause this. Help would appreciated.

i was used 10kva quattro with grid set point -6000w but it wont feedin back more than 4000w.

Hi there,
I can see some noisy, unstable 1 minutes burst power changes on input phase to Multiplus II when inverter is running, reported by independent ET340.I was in contact with my dealer and it seems to be becouse of HDO interference.Is there a way to fix this kind of behaviour (see below)? ESS mode, grid set point 200W.

Picture 1 - with visible two, around 1 minute noise bursts

Yello is noise behavior measured by independant ET340 on input L1 phase to Multiplus.

Pink is power at Multiplus out1, quite stable consumtion.

Blue is power from battery

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Picture 2, zoom out show other noisy timeframes.

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System: 3x 5 kVa multiplus II in 3 phase, 2 current meters, 48 V lifepo4 battery, batrium BMS

I tested the system today, i flipped the main switch to disconnect from the grid. The appliences kept running, but while i thought the PV inverter would remain running, it switched off. I guess it has something to do with sync or so? Please some advise. It is not a must, but would love to keep this running in case of net failure...

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Can some one help me with the following situation. My system (48v lifepo4, batrium bms, 3 phase multiplus 2 5000) box runs for a week or 2.

The system uses the battery but stops at an still increasing state of charge. Today it stopped at an 65 percent

Ess #1 and #2 is on, but as far as i know, this doesn't influence the soc?

Hey!
I have an issue.
the set is:

2 phase system with 2 multi 3000Va 48V Venus Gx, Blue Solar MPPT and Lead-Carbon batteries.

I am using the start/stop Generator Function to ignore AC In.

System should be disconnected from AC In, until the consumption hit maximum which can solar and batteries provide or until the multies overload or until the batteries fall down to certain soc.

I had set the parameters for overload, battery current, ac load and SOC and it works well until the system needs the grid, then it just kicks in and whole system runs on the grid even when the batteries could provide like 70% of load, it still runs only on grid.

I am using ESS so, point is, why the system don’t skip to the hybrid function? And is there any way to solve this ?

Ps: iam using the remote console seating for generator

hoi,

i did an update on my quattro (469) , did update ESS , did update colorgx (2.51)

but cant fiind this option...

" Supports limiting the FeedIn power. (Starting from firmware revision 469) "

can someone tell me that?

thx kristof

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It only show starting but does not proceed in equalisation, i’ve checked the firmware and up-to-date I have a multiplus 48/5000/70, solar charger in Mppt 150/85

hi All,

The moment I add an AC Coupled inverter to the output of a Quattro the ESS doesn't work as desired. It doesn't cycle the batteries at all.

We have enabled frequency shifting and measure the output of the grid tie inverter via a AC current sensor.

There is a grid meter in the setup and comms is OK

I'm on the latest firmware 469, all other devices on the latest firmware as well.

This problem is only with Quattro range of inverters and not the multiplus Inverters.

The Quattro inverter keeps on showing "Bulk" or "Absorb" mode and doesn't discharge the batteries at all. it will use only Grid at night.

ESS Relay test was successfull.

ESS setup is correct.

Parameters from lithium batteries are OK.

Am I understanding this correctly?

The RS485 victron cable does not have a rj45 attached to the end and I need to add it my self using only the orange, yellow and black wires?

What do I do with the other colour wires?

Thanks

Mark Boys

The above scenario occurs when there is a mains failure at council level. When we simulate a mains failure with the breaker, then it does not happen.

7c010a8e32b6

Short version:

What is the impact of disabling the AC_1_in on a Multiplus II with the virtual switch in an ESS system?

Long version:

I have two systems, each with a Multiplus II 48/5000. Each has a single Narada 48NPFC100. The battery is generally sufficient for my requirements, with very little taken from the grid. My consumption doesn't justify additional battery purchases. However, the battery goes into protection mode the moment the output current exceeds 100 A.

We have pretty unstable grid supply. If the grid drops when there is no solar input, the battery often goes into protection mode with an overcurrent alarm. If I switch off the grid input via circuit breaker before the grid drops (it is loadshedding, so pretty predictable), the battery and inverter stays up. So basically, the battery really doesn't like that moment between where the grid drops and where the anti-islanding relays open. Also, the battery then struggles to boot up the Multiplus unless there's an additional powersource (grid comes back or power from the panels).

My plan is to use MQTT with a scheduler to disconnect the grid a few mintues before loadshedding is scheduled to start, and to then reconnect it after loadshedding is over. Any reasons why I can't use the virtual switch to do so? The rest of the time I'm perfectly happy with my ESS setup - it is only when the grid drops at night that I have issues.

Hi, I want to see all of my incoming PV energy(DCcoupled + ACcoupled) in the VRM statics.
Currently setup:

ESS on RPI

multigrid 2 48/3000(all house loads on ACout and a 1kW PVinverter)

1,5kWp DC solar with mppt150/35

bmv700

8kwh LiFeyPo4 with 2-wire bms (48v)

if I place an ET112 on the ACcoupled inverter, how does it looks like on the remote console and does it counts incoming solar together with the incoming solar from MPPT So I can see on the dashboard the total incoming solar and total usage?

Hello!

Is it possible to enable and change the "Scheduled Charging" feature in ESS via modbus or other remote interface?

I am using awattar.de as Energy Provider and i want to charge my battry wht the energy price is on lowest state.

Thanks

Dennis

Hi, we've a running ESS single-phase system with Multiplus, ColorControl and one Fronius Primo 5.0 connected to AC_IN of the Multiplus. Now the client wants to do a power upgrade, meaning that we need to install a second Fronius, in this case a Primo 8.0 to get a total power of 13 kW. The question is, can I connect both inverters in parallel to AC_IN and get them communicating properly with the ColorControl, including Fronius Zero Feed-in? If it's possible, how would I get them communicating? Datamanager in only one Fronius and connect both Fronius via Fronius internal bus, or 2 Datamanagers, one for each Fronius and communication via Modbus between ColorControl and both Fronius inverters? Thank you!

Why did my battery die.

I'm asking this question to find out what went wrong and how to correctly maintain solar charging of AGM VRLA type batteries in a mobile scenario.

Setup purchased Dec 2018 (14 months old)

2 x HGL-120 -12 PRO SERIES EXIDE VRLA AGM.
1 x Victron 75/15 mppt
1 x Victron battery temp sence
1 x 100 watt solar panel.

Batteries are in parallel, charge cable from mppt is connected to + on one battery and - on the other.
The mppt settings from new have been, absorption 14.3v float 13.7v. Having some concerns over this near default setting about 3 months ago I changed these and made a new user defined standby setting which allowed the battery to achieve a float without major charge. info here

https://community.victronenergy.com/questions/29395/firmware-update-v142-causing-different-charging-ti.html?childToView=29432#comment-29432

The van has been used very little, 3 camping trips, a week each time and 10 other times overnight all with minimal discharge from a 45 watt fridge and a few other small gadgets.
January last was the third week trip to forster, it's then I noticed my discharge was more than normal down to 12.7v and charging back to float was hard to achieve, a bit concerned I started to wonder what was happening.
today with settings on default the voltage wouldn't rise above 14.1v and bulk charged up to 6 amps through the day, after chasing symptoms on line I physically checked the batteries and found the one without the victron temp sencer was hot hot hot, cooked. The other with temp sence was warmer than normal at 35 degc, I suspect it's been warming by leaking power to the dying one, I disconnected the batteries and checked voltage cold battery 13.19v the hot one was12.9v and checked an hour later 12.6v.

I must say I have spent hours of research trying to do everything for this not to happen and here I am, so I ask the question why did my batteries die.

Hi, I am trying to set up an ESS system but would like to check the connections to the Multiplus.

Q1. Reading the ESS design docs it seems you connect the ACout to the grid, is this correct? Does this mean the ACin is not connected?

Q2. I already have a meter which gives me bidirectional power information which I read and use to switch the immersion heater, is there no way I can use this with the multiplus? I send this reading over the local LAN via MQTT,

Q3. Am I better off using the Multiplus in dumb mode ESS mode4? Can you point me to useful links on that subject?

Thanks, see (possible!) schematic below.

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I have had a Multigrid 48V 3kVa working flawlessly in an ESS system with a BYD battery for about 12 months.

A couple of days ago there was a power outage that lasted for over 6 hours.

The system stayed up during that time. When the mains grid power came back. The system switched over from inverter mode to pass through mode and stopped the discharging of the battery.

Why might this be?

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After watching a video about overloads, I analyzed the VE. Bus Warnings and Alarms curves of my EasySolar 24/1600 (working with ESS assistant) in order to understand the repeated overload alarms that were recorded.

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VRM Curves

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According to the video, overload situations should happen when the inverter reaches the max output power.

Here my inverter turns into overload even when it is not at the max output power.

Is this normal?

link to the video: https://www.youtube.com/watch?v=4SXtGIx0x5w

HI

I posted this in another post from last year where it appears a similar issue was found (see link below).. since no one has replied, I assume it got lost somewhere in all the comments. So:

I'm having a problem with a Carlo Gavazzi EM24DINAV53DISX- where the CCGX is simply not recognising meter. It's all connected up correctly, and have checked continuity of the data cables-. all fine. yellow in 41, orange in 42 and black in 43.

The RS485 to USB is a Victron cable, but like the top one in the photos from Robert1508 in the post: https://community.victronenergy.com/questions/6199/energy-meter-not-recogniseddisplayed-on-color-cont.html

On the USB cable at the back of the CCGX,

previously said: "green light is periodically flashing, but red light is fixed solid" , apologies, that's wrong, both green and red lights are flashing together periodically for 12-20 blips.

Can anyone help?

Thanks

Laz

Please guide the steps to set low cut off voltage at 22.2v, I am using MPPT 75/15 with bluetooth, 2x 12v 100Ah batteries (total 24v) and 2x100w solar panels.

Please suggest jumper settings and Victron connect app settings

Thanks,

Deepak

Good evening

I have a question regarding ESS setup with mode set to keep batteries charged.

System background :

Victron quattro 15kva

14kw PV array

3 x 250/85 TR

Small battery bank 48V 225Ah AGM(for now)

Inverter as battery monitor.

The issue I am facing is that battery power is used even though grid is available during night time. The system is set up to keep batteries charged with SOC of 100%.

The goal is to only use battery power if the grid fails due to load shedding or grid fault.

However when AC load peaks at about 12k watts, AC input voltage drops visibly on the graph. Battery power is then used to supplement demand.

This is unwanted. AC low disconnect is set to 210V and reconnect 220V.

Could it be that the voltage dropped below AC low and the system logging resolution just doesnt show?

Please advise

Hi,

I have two Questions created already where i have discussed various issues regarding my solution. See here :

https://community.victronenergy.com/questions/41291/multiplus-ii-disable-feed-back-entirely-possible.html and https://community.victronenergy.com/questions/42279/lom-detection-when-feed-in-disabled-why.html?childToView=42916#comment-42916

I am sorry that i now create another issue but i am not confident that what i want can indeed be done with the chosen HW/solution.

---

Background:

I am located in Denmark and wish to buy Victron products to make a hybrid/off-grid system where "All" i want is that i can pull/mix power from grid when i don't have battery/solar but NEVER feedback to the grid, just one little bit will get me into trouble. I assume feed-back and feed-in are the same things right ? The most important thing for me is to not feedback to grid and be able to pull and use the produced energy myself. I think this is called self consumption.

I read on https://www.victronenergy.com/live/ve.bus:grid-codes-and-loss-of-mains-detection :

Q4: I use ESS, but have disabled feed-back, is a grid-code still required?A: Yes, also in this case LOM is required to make for a safe and also local regulations compliant system. Running ESS with disabled-feed-back is still not the same as using a Multi in its default configuration without ESS.

I don't understand why do i need LOM for this ? Can somebody explain ?

Regarding my usage :
We (our family) have roughly 16-20kw consumption per day and in total 6000-7000kW yearly. I will also have a powerwall build myself using LiFePo4 batteries (48v) roughly a 10-15kwh.

System i have in mind :

1 x Multiplus II 5000/48
2 x SmartSolar 250/60
1 x Venus GX

I have 21pcs of 310W panels (https://bit.ly/2P1GL9O) so i was thinking to place 10 on each side of the roof meaning i would do 2 x 5 panels in series so i would have 200V for 5 panels then parallel the 2 strings and one string is 10A so 200V 20A for one charge controller. I think that is ok but that means I need to use the 250/60 solar charger model which is more expensive and i need two of those. Please correct if i am wrong.

I have 100% stable grid connection and since the Multiplus II can handle a big load in by pass i can practically run the whole house on the AC out from the inverter. Please correct if i am wrong.

Questions:

1. I want to know if the above system is feasible ? Are there any other Victron HW that i also need which is not on my list above ?
2. Can I use the system in such a way that i NEVER feed-in/feeback to grid in no circumstance but at the same time i can consume from the grid when no solar or battery is available ?
3. If 2 is possible can the system be programmed in such a way that when the load is too big for solar alone or solar/battery combined to also mix in grid power BUT still without feed-in/feedback to the grid ?
4. If 2 and 3 is feasible what do i need ? Do i need ESS or ignore AC input or both if that's possible ? How would one configure ?