ESS

Hi everyone,

My about to go live system, is comprised of a Victron Quattro 48V/8000VA + Smart Solar MPPT Charger 250/100 MC4 and 24KWh of LifePo4 batteries. My question is;

What's the proper way to configure my system, so that during Winter, the i3 wont use stored energy from the ESS Batteries to charge it self ?

In other words; its ok if during summer it charges from the ESS available power but during winter it should charge exclusively with evergy from my electricity provider.

would love to ear your thoughts. Thankx !!

I have 2 100/30 Smartsolar MPPTs integrated with a Quattro 5000 into an ESS, running on 24V lithium batteries.

I am not onsite at the moment and have an urgent question.

Solar at the site has been weak for days and there is a possibility that the batteries will deplete to the point of shutting down. My question is, if the inverter shuts down because of low voltage, will the mppt controllers also stop charging during the day because they’re slaved to the ESS or will they resume charging “headless”, so to speak, when the sun comes up?

I’m trying to figure out if I should remove ESS before that happens (remote config) so the batteries charge again or if I can leave things as is.

Note: the CCGX has a small amount of backup power that might also lose power overnight.

Thanks in advance for any help!

I have a Victron Easysolar 5kv with Pylontech 2000 battery... I keep batteries charged to 100% and only use them when grid fails. I see this uses about 15% of my solar yield... is this normal and is there a fix?

HI

I'm curious to know how the ESS system actually functions. I can understand how it charges batteries from the AC side using excess solar and grid power; What I cant quite understand is how it produces AC from the DC batteries in "discharge" mode, since the grid is still connected.

Does it have to therefore synchronize with the grid voltage and frequency before discharging the batteries? If so, how does it do that? Or does the charger go into a kind of "reverse" mode?

Any pointers most welcome

Why is it that my VE.Direct BlueSolar MPPT Solar Charge Controller 150/45 v1.37 as a stand-alone charges my 4 x 12V AGM 205Ah @ 20Hr Trojan Solar batteries from Bulk, Absorption to Float with ease but when connected to Color Control GX v2.23 along with MultiPlus 48/1200/12-16 230V VE.Bus v433 and Battery BMV-721 Smart Monitor v4.01, the batteries are only charged from Bulk to Absorption, never reaching Float?

I am also aware from the ESS Design and Installation Manual that for systems with the ESS Assistant installed, the MPPT Solar Chargers will follow the charge curve as set in VEConfigure. The charge parameters configured in the MPPT Solar Chargers are ignored in an ESS setup. But this should not affect the state of charging batteries from Bulk, Absorption to Float especially in places with an average of 6 hours of bright sunshine per day. Why am I experiencing this problem?

Hi from a longtime Victron reseller in Colorado. I have a solar home sales opportunity where there are no code inspections--hence little worry that Quattro has no American style UL1741 label.

AC coupling or DC coupling is still undecided but either way I need approval to "sell" excess energy into the "mains". Lawfully grid-tied Victron may be a first for this side of the pond.

The public power company wants compliance with "IEEE Standard 1547 Guide for Distributed Generation Interconnection". Here's a link:

https://standards.ieee.org/standard/1547-2018.html

but is that equivalent to any of these grid code standards in VEConfig3?

[image]

The mains engineers are more likely to approve the intertie if I can document Victron compliance with IEEE1547.

How about that Victron Energy Staff? Any thoughts or help? Thanks in advance~

My ESS system build with ccgx ,3x quarto 48/10000, 3750ah lead acid battery's is not showing battery % on ccgx is this only possible with an bmv.

Hi...

I have "Keep Batteries Charged" configured in ESS, but my system charges the batteries constantly and never goes into an "idle" mode (or perhaps pass-through mode).

I've configured a separate larger system and noticed that the batteries are charged once, then no more activity is seen on the CCGX and the VRM portal shows "idle".

What setting could I have wrong in this configuration?

Color Control GX (v2.42)

MultiPlus Compact 24/1600/40-16 (v465)

BMV-700 (v3.10)

BlueSolar Charger MPPT 75/50 (v1.47)

2x Monbat 12MVR170 AGM (closest spec https://drive.google.com/file/d/1ha7IVahv56O-qEzJJKgZfcrXlrKLLlPL/view)

2x SunLight NetForce FT 12-180 AGM

Float Voltage set at 27.24

ESS: Enabled

DVCC: Enabled

I need Your help/advice.

We have client with single phase electric installation.

He has two Fronius inverters. Each inverter has connected 3.6kWp of photovoltaics.

We want to build him ESS on BYD and Multi Plus-II 5kVA.

1st Fronius will be connected to the input of the Multi (when there is no grid – inverter turns off).

2nd Fronius will be coupled on the output of the Multi (when there is no grid – inverter still works).

Client cannot feed Energy back to the grid.

Can we realise zero-feed-in function in configuration mentioned in above (scheme in the attatchment)?

If not can You give me any suggestions?

Hi, I have an existing grid-tied SMA inverter (SMA 5000TL) and 2 strings of 13 panels for total of 6.5kW. I want to add storage and am considering the QUATTRO with 4 x Pylontech US3000 batteries (@48V nom).

The main aim of the exercise is to be self-sufficient in case of extended/indefinate grid outage. I am no expert, but my reading suggests that the Victron QUATTRO would provide a mini-grid on the AC-OUT-1 and that the SMA solar inverter would run 'normally' on this channel regardless of whether the grid was connected or not.

Assuming that the above is correct, would the SMA inverter connected in this way be a stable and reliable configuration. I ask this because I have read some posts/articles that indicate that there are situations where the inverter may go over-voltage and shutdown the QUATTRO.

Is this a potential problem, and what would be the recommended way to deal with this?

Note, the loads would include 1000W and 1500W pumps (bore pump etc), inverter aircon, fridges and freezers, lighting and misc.

thank you,

Ron

Hi Victron Community,

I am currently setting up a grid parallel ESS with a Multiplus 2, a Venus GX and two 5KWh Tesla (24V each) Modules in series. I will setup a BMS (SimpBMS) for the Batteries in the future but would like to use them beforehand (with restricted parameters of course to ensure that they don't under and overcharge ).

I am struggling to find a battery option in VE-Config and on the Venus Remote to tell the multiplus to charge/discharge the batteries according to voltage. All options in the ESS Assistants appear to be requiring a BMS communicating to the GX/Multi that batteries are charged/discharged.

Isn't there a simple option where I can set the Multiplus to charge the Batteries up to 48V max and invert down to 38V, for example?

After starting the ESS Assistant I have changed the inverter and charger settings in Ve-Config manually to the above (38V - 48V), but the system does not engage and appears to be waiting for a signal from a (non-existent) BMS.

Is there a "BMS off" or "No BMS" function (or similar) on the GX that I have overlooked? Any help would be much appreciated.

Many thanks

Schematics of my setup are below:

[image]

Existing system:

Grid supply is 2 phase (120 degree). 2 x 48/8000/110 - 100/100. One on each of the 2 phases.

9.6kWpk on 2 x Delta Solivia 5.0 AC inverters (one per phase - old Grid Tie system) on AC Out of Quattros.

6.6kWpk Solar on 2 x 150/85 MPPTs DC Coupled.

Battery is 9 x BYD B-box LV 23kWhr

Latest firmware in everything. Quattro's are running the UK grid code and are feeding excess solar to the Grid.

I'm attempting to connect a 15kVA 3 phase backup generator to the ESS system and have connected two of the three phases to the ACIN1 of both Quattros. (The grid is connected to ACIN2). To balance the load on the generator I've connected the third leg to a Titan 48/50 battery charger. I had to disable LOM on the ACIN1 to get the generator to stay connected. It all works perfectly in regards to connecting and charging. I'm not concerned about the interaction between Gen/Quattros/AC Inverters as the generator won't be running when the sun is out anyway.

The problem I have is that the Quattros will not connect to the generator when the Grid is available on the ACIN2. It hooks up every time if I isolate the Grid.

I figured I could possibly rectify it with an Aux input/Assistants to "Ignore ACIN2" but it didn't work either.

As soon as the Generator is available on ACIN1 it diconnects the Grid on ACIN2 but won't connect to the generator. If I then isolate the Grid it hooks up and starts to charge. I can then reconnect the grid and the generator stays connected as it should. When I shut the generator down it disconnects and the grid reconnects on ACIN2 as it should.

I've read all I can find on the subject but can't find a solution.

Any help would be appreciated.

Mike L.

A recent customer installation, a 10kVA Quattro with 2 x SmartSolar 250/100, 30 x 275W poly modules and 19.2kWh Lithium batteries, running on ESS - the first grid failure resulted in their TV, satellite decoder and computers shutting down and having to reboot. The switchover should happen within 20 milliseconds but it took more like 250 milliseconds, lights dipping visible to the human eye. Any suggestions?

Hi all, my CCgx panel always displays 100% battery even when voltage drops to 48 and below. I have 8x 6v AGM 550amp batteries and No grid input, purely 4kw of pv panels for an input of 120v (4 in series x 4)

I have updated all firmware to current (2020) versions with no change

I have an ESS system and would like to set a Load Following strategy in the CCGX. I charge the batteries during the night and would like (in that order of preference):

1) Set an maximum power available from grid and supply the remaining power from the batteries

2) Set a fix power value for the batteries to supply along the day

How could I configure it?

Hi - I have a multiplus 5000 and 2 x LG RESU Batteries connected, the power available is a little low, can I add another RESU10 battery using the second VE.Can socket. I would connect the 3rd battery direct to the inverter - would the colour controller send the right signals and would the Multiplus work with 3 RESU10

Hi, I have 3 phase system with Quattro 48V/5000VA, 2 Victron LiFePO4 batteries( 25,6V/200Ah), running ESS with Fronius ongrid inverter connected at the AC input of Quattros. The meter is Carlo Gavazzi EM24(with CTs). The problem is that in case I'll set "Fronius zero feed in" to ON, PV production is reduced to the necessary load, but even when it is a lot of sun, the charging battery is limited very low or zero. In the case I switch off the zero feed in, it is working well, but I don't want to export a lot of power into the grid. It seems that the smart meter is faster than Quattro and first is ordered zero feed in and after that is not enough power to charge the battery.

[image]

Good Day guys,

I am trying to charge my BYD batteries between 23:00-07:00 when the unit price of grid is the lowest but, somehow CCGX does not allow me to set ESS > scheduled charging > Schedule 1 start time anything after 22:59. Submitting a value e.g. 23:17, returns as 22:17 automatically in submitted task and I also realised that scheduled task never fires at displayed time: 22:17 ( probably its only a gui bug)

The system is running latest firmware Venus v2.42. the bug is probably introduced with v2.4x

It may also be related with Timezone: GMT+3. Anyone faced similar issue?

Regards.

ESS is feeding back to the grid and working fine but is still charging the batteries from the grid when there ain't enough solarpower. I want it to charge the batteries only in the night from the grid by scheduled charging and by daytime only with the mppt and not from the grid. When i set the multiplus in invertmode the grid gets lost and the feedin surplus solarpower stops feeding the grid. How can i setup ESS that it does what i want? Thanks in advance

[image]

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

Hello, I think after two years batteries are gone. It was set up and configured by company for my father, but was not monitored or serviced either. After he noticed often low voltage alarm he asked me for help, as the company is not reachable anymore.

There are 10x panels (AS-6P30-260W),
BlueSolar Charger MPPT 150/70 firmware 1.46
MultiPlus 48/3000/35-50 firmware 4.30

4x 12V victron 110Ah Gel batteries (in series)

I've studied something, purchased cables updated firmware, installed venusOS on raspberry, changed to ESS (before there was some Hub system - preventing feeding to grid - no allowed in my country) but still voltage drops very quickly and almost 90% usage is from AC grid even on sunny day, though usual load is between 200-600Watts, so I suspect inverter shuts down due low voltage very often.

I've read in this forum system is not able to run without batteries (he do no want to invest in new batteries anymore) question is, is it possible to set it up that way it will use as much solar power as possible even with such "dead" batteries, if yes what is the best configuration.

Or is Multi 48/3000 capable running with smaller voltage e.g. 12V or 24 ? I could try to isolate broken battery and try to set it up with remaining good ones, or maybe use spare 12V car battery if it's necessary for system to run

Hello,

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

[image]

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

[image]

as seen directly in the console:

[image]

and also as seen directly from the sky:

[image]

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

[image]

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.

I am new to ESS hence the question. Is it possible to change ESS mode using an external switch input? Similar to the Winter mode switch in Hub 2. We have frequent occurrences of load shedding in South Africa so while I will be configuring the ESS system to run in optimized mode I would like someone to, with the use of a switch, to be able to switch to "Keep Batteries Charged" when loadshedding is announced/forecasted. I know I can play around with minimum SOC etc, but this used to be a quick and elegant way to do it in the past. No need to delve through menus to get to the setting.

Hello.

Main reason why I'm asking this is because ESS manual says the Fronius SmartMeter can't be used in Victron/Fronius ESS setup.

My goal is to use PV power mainly and primarily to produce heat (second to use the surplus, third to store the surplus).

My idea was to set up the system like in the diagram attached and configure Victron ESS with "control without grid meter" = OFF

[image]

The Fronius SmartMeter would only be used for the Ohmpilot to know how much energy can be used for the boiler (Surplus = "PV engergy" - "Critical loads energy")

My questions are:

- Will this have an impact on Victron/Fronius ESS setup?

- Will Fronius Zero feed-in still work?

Many thanks for your thoughts and Merry Christmas!! Mike

The system in question has an Octo GX, 15kVA Quattro, 8x Pylon US3000 and 3x 250/100 MPPT's.

Para 4.3.9 (Limit Charge Power) in the ESS Design and Installation Manual states, inter-alia, that: "

• This setting does not reduce the charge power coming from MPPT Solar Chargers."

I assume the exact setting referred to is this one:

[image]

[image]

My batteries' SOC at the time was 31% so I expected all "spare" PV power to be directed to charging the batteries.

My goal is simply to limit or even entirely prevent using grid power to recharge batteries.

Am I misunderstanding something about this setting?

Thank you.

Hello All,

First time here on the forum. I am currently setting up my first Victron system and would require some direction on setting it up. I will list the equipment below first

1. Victron multiplus ii 48V 230V 5000W
2. Victron charge controller
3. 4x pylontech 2.4kwh
4. SMA 5000W grid tied
5. Carlo Gavazzi three phase grid meter

The aim of the setup is to use ESS feature of victron.

The SMA inverter will feedback power to the grid.

Charge controller will also feed back excess power to grid when batteries are fully charged.

Battery should only charge from excess PV power and not charge by import from the grid. very important

AC out 1 is connected to a critical load panel

All hardware is currently installed but would appreciate any feedback or direction in acheiving the objectives outlined above.

Hi,

I currently have a Fronius primo 5kw inverter with 4kw of solar (2 arrays NW and NE) and am looking to add a victron Multiplus-II GX to provide some storage and redundancy for power outages.

I understand that with 4kw of solar and the inverter being only 3kw I will run into trouble with a grid outage if I have the solar inverter on the output of the multiplus due to the 1-1 rule.

Im wondering if there is any way to reduce the fronius down to 3kw as soon as the grid fails to make this work?

I guess any system would need to be very fast to avoid any inverter shutdown however if the solar inverter was to shut down for a short time then ramp back up slowly to a reduced output this might work?

Any thoughts are very much appreciated.

Thanks

Mike

Hi!

I need help about the parameters for cut off. The standard values makes that when the Multi draw up to 2500 - 3000w, they stop invert by low battery.

I have 24 cells Hoppecke 6 OPzS 600 that have a capacity:

C10 - 686Ah (1.80v)

C5 - 590Ah (1.77v)

C3 - 510Ah (1.75v)

C1 - 353Ah (1.67V)

I don't know if the voltages values from Hoppecke for each C value is the nominal o the limit when the battery is empty.

Many thanks!

Angel

Using Quattro 5000 / 120 V with an updated firmware and ESS assistant for a 48V system.

We are facing the problem of while having a high AC load and there are no available solar Energy inputs so we are running purely on batteries "having ALWAYS a low battery warning LED flashing - and of course on the CCGX- even that the SOC of the battery from the BMV is higher than 90% and the voltage is ok as well"

1. is there a way to avoid this wrong indicator on the inverter?
   • Taking into account that the ESS settings for the dynamic battery control is modified already based on our battery type and the low voltage alarm reseat value for the inverter is set to 3 V (instead of 1.2 V default).
     
2. In case we have to live with this fake warning, How can we avoid getting this warning on the CCGX?

Appreciate your advice

Hallo,

wie kann ich die Einspeisung verhindern am AC In bei einem MultiPlus2 bei

ESS.

Da in Deutschland keine Einspeisung auch die 0 Watt Einspeisung ohne Genehmigung

des Netzbetreibers nicht erlaubt ist.

Hub4 funktioniert auch nicht ohne Einspeisung und HUB1 ist wegen der

Spannungssteuerung keine Alternative.

Meine Anlage ist DC verbunden.

- 2 Mppt Laderegler

- 1 MulitPlus-II 48/3000/35-32

- 3 Pylontech US2000

- Venus GX

- ET340

Wozu gibt es im Multiplus bei Grid Code - Settings die Einstellung

-> Use Aux1 as disable FeedIn signal.

Freue mich auf eine Antwort.