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Victron ESS + ET112 = slow response

Hi,

Recently I've installed ET112 grid meter on my system (which was using CT sensor previously) and I've noticed that the Multi is very slow on response to load. Currently my system looks like this:

[image]

The grid set point is set to -10W. The multi needs a good 15-18 seconds to stabilize after large load kicks in and another approx 15s to stabilize after load drops off. Check the video from VenusGX (the load is switched on at about 16s of the clip and switched of at 43s of the clip):

Is that how it should be? The difference in the load is just about 1.4kW, why is it taking so long to handle that?

Previously I was using CT Sensor extended with Cat5e cable to over 25m long, the system looked like this:

[image]

The response to load was pretty much instant. I've recorder video using the same load as on the previous one (load switched on at about 10s and switched off at 23s of the video):

The system need seconds to stabilize

Also you can see a clear difference on the Grid use graph from VRM portal:

[image]

[image]

As you can see, with CT sensor the system is very close to grid set point, with ET112 grid meter it is way off and hardly ever stay close to set point. The situation is even worst during cloudy day when PV power is fluctuating (you cen see it on my other youtube video).

Is it normal behavior? It looks like Multi can handle this load easily, the problem seems to be in the feedback from the grid meter (or algorithm when ET112 is in use). Is there anything I can do to improve this reaction time??? Please advice.

Kind Regards

Mysik asked
stxShadow answered ·

1 Answer

Multiplus-II Absorption and Float - discharging to grid

Hello,

I have an ESS installation with a Multiplus-II 5000/48, an MPPT 150/85 with 4Kw solar system and a 48V 200Ah LifePo4 battery system (currently no BMS). Absoprtion voltages are 56.4 on the Multi and 56.8 on the MPPT - float at 54.4. There is some behaviour that is concerning me in that during absoprtion and float, the Multi seems to be continuously switching between charging and inverting, this happens during the day where the data logs look more complex due to varying AC loads and MPPT but it also happens during scheduled charging overnight, see plot below. You can see the half-hour absoprtion phase from around 00:20 to 00:50 where amps oscillate between +5A and -10A, then folllowed by a large amp spike (selling to the grid) at 00:50 when it switches to float (I believe this is caused by the drop in voltage - hence the battery needs to discharge current to achieve that. In float mode (from 00:50), the same behaviour continues, going from charging to the discharging.

I feel this is neither good for the batteries nor for the Multiplus - am I doing something wrong or areany of my settings wrong? I am running Mode 1 ESS self optimised.

Thanks

Toby


[image]

tkrull75 asked

0 Answers

How to force charging batteries at night from grid on an EasySolar with an ESS configuration ?

Actually, my problem was that my SOC was toping at 89% and the EasySolar didn't accept to charge the batteries anymore.

After a little discharge, (SOC at 84% this morning) it finally accepted to charge them.

Now the question is "Why does the EasySolar don't realize that the battery is full ?"

Is there a way to reset the soc at 100% ?

Please tell me if I am in the wrong way of thinking.

Config : EasySolar 3000VA 48V - 500AH LeadAcid Batteries - 2000W solar panels - set up 1 month ago.

StephDuyns asked
Girbar answered ·

4 Answers

Multiplus - modbus - grid tie solar 3ph - use spare energy

Hi, I have a house with a 4kW GT system on FIT on phase A

I have added a 12kW array which I am planning to split over phase B and C.

I want to use a multiplus II as a smart inverter/charger from a lithium battery to store excess energy from any phase.

My supplier meter is net metering (non smart). So what I (think I) need is my own net metering meter which talks to the Multiplus and tells it to charge or discharge the battery to keep the import/export at zero. However this will only be pulling off one phase. This is why I need the external meter. If I am exporting 1kW on phase B and C (for example), with no import, but the Multiplus is on phase A, it can still import 2kW on phase A with no supplier charges.

I have researched Modbus meters but I just wondered if anyone had done anything similar - presumably I need an interface between the Modbus and the Multiplus to convert Net Export Power into Victron charge now Power.

I will have a zappi car charger and a DHW store system to soak up the excess energy. Ideally this would be priority order

1. Car (if present)

2. House batt

3. DHW cylinder

4. Export.

Although I would be willing to always do House first if that is less complicated (the zappi and DHW system will communicate internally but I don't know if they would communicate with the Victron).

I believe delays can be programmed such that the Victron could have a shorter delay on start up than the Zappi which would ensure the house batt gets priority over the car.

Of course as the car isn't always there I thought that would be best if the car got first dibs as hopefully if its a sunny day the house would get a chance later after the car leaves.

I should be good for producing approaching 16000kWh per year with this system (the 1year old original 4kW array made close to 4000 in a year and the 12kW array is less shaded)

My background is Marine - off grid so use a lot of Victron products. I have used R pi a bit so I guess this or Arduino could maybe be a useful interface if there isn't a premade solution available.

Thanks in advance

Olly

olly12383 asked
DayAndNight answered ·

1 Answer

Feature request: Germany 70% feed in limitation of ESS to the grid

My system: Multigrid 48/3000/35-50 with Venus GX and two connected Pylontech US2000 Plus. A BlueSolar 150/35 is DC- connected to the Multigrid. My Fronius Primo 3.0-1 is AC- connected to the output 1 of the Multigrid. The gridmeter is an ET340.

Now i want to feed in the excess energy to the grid after loading the batteries to refinance my pv- system. If i want to get my feed in energy payed i have to register my system by an electrician to the energy supplier. There is a law in Germany called EEG: Only feed in 70% of all the generators maximum power output. The electrician have to set and confirm that the maximum power feed to grid is set to 70%.

Without this limitation to 70% on the entry point to grid you have to install a radio remote controller to govern down your system in four steps by the energy supplier in case of over- energy of the grid. This controller costs about 1100€ and monthly 5€. Last choice is to cut off all inverts to 70% of power generally.

Further information see: http://www.buzer.de/gesetz/11230/a188267.htm

The technical system and measuring devices are installed, available and working fine at the ESS. Other possibilities to limitate to 70% means an huge technical effort to the whole system and money or a loss of energy.

The Fronius and BlueSolar MPPT can be governed by the CCGX to zero feed in to the grid (works fine) but there is no possibility to govern it to a adjustable max. feed in to the grid.

I need a function to set the maximum power (50W steps) feeded to the grid by the ESS.
Priorities: 1 = self consumption; 2 = loading batteries; 3 = feed to grid with adjusted maximum power
This is an important function to use this system in Germany to feed in to the grid.

I don`t know the exact conditions of the network operators but password protection for the max. feed in value will be necessary.

Is Victron planning such a function?

moeterxl asked
Sander van Noort answered ·

6 Answers

Keine Einspeisung in Netz erlaubt.

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.

Knut asked
MaHa commented ·

4 Answers

Getting Power from the grid only if Multiplus 2 has to deliver more than 2000 Watt

Hi,

I have an island with 1,92 KWp, MPPT 150/35, Multiplus 2 48/3000, Venus GX and 3 Pylontech US2000.

In some cases, when the MP2 has to generate more then 2,5 KW, the MP2 is blinking red, which means overload.

Now i want to configure my system so, that it gets power from the grid only if MP2 has to generate more than 2 KW. But how ?

Thanks for your answers

Karli

Karli asked
ejrossouw answered ·

1 Answer

How to Backfeed to Grid from Multi with PV

Hi,

i'm running a Multi 12/500 in my Van, combined with 150Ah LiFePo4 Batteries, MPPT and 200Wp PV.

Is it possible to feed unsused Energy back to the Grid if it's not used for Charging the Batterie?

Do i use ESS for that?


Thanks in Advance.

magus asked
magus answered ·

3 Answers

MultiPlus-II auf Netz, Akku und myPV Verteilung

Hallo,

ich will eine PV-Anlage mit maximalen Eigenverbrauch aufbauen. Möglichst KEINE Einspeisung ins Netz. Momentan sind folgende Komponenten geplant:

  1. MultiPlus-II
  2. BlueSolar <- PV-Panels
  3. 48V-Akku
  4. ColorControl GX
  5. Smartmeter EM24
  6. myPV-Thor-Heizstab

Nun zu meiner Frage, kann ich die Stromverteilung in dieser Konstellation so einstellen, dass

  • Prio1 - der Gesamtstrom (aller drei Phasen) vom PV-Strom bedient wird. Eine Bilanzierung soll ja im Stromzähler stattfinden, so dass ich auf nur einer Phase einspeisen kann.
  • Prio2 - der ggf. verbleibende Strom zur Ladung des Akkus verwendet wird
  • Prio3 - der ggf. restliche Strom mit dem myPV im Pufferspeicher verheizt wird

Ist so eine Priorisierung möglich oder findet das Laden der Akkus und bedienen des Netzes immer gleichermaßen statt.

VG Mazon

Mazon asked
Matthias Lange - Service Team Döbeln DE edited ·

1 Answer

Multiplus 2 as UPS (UK)

I'm planning an ESS system using a Multiplus 2 (48/3000), solar panels, MPPT, GX, Battery etc. All pretty conventional so far. When it's installed in France, where I subscribe to a 9000va service I can reconfigure my consumer unit so critical loads are supplied from AC out 2, and everything else is connected to the AC out 1. So far so good. In this case the Multiplus will boost the grid supply (from PV and battery) if five people decide to dry their hair, boil a kettle, make some toast (or whatever) when the grid is connected, and in the case of a power cut they'll have to suffer wet hair, wait for breakfast and have no tea, but the lights and wifi will still be on. I say its relatively easy because the house wiring there is made up of simple radial circuits, limited by the size of individual breakers, maximum eight sockets on a 16amp breaker, cooker, washing machine, fridge etc on individual breakers and so on and so I know which circuit goes where and can easily choose which circuits are critical and which aren't.

Now for the question: In these unusual times I want to temporarily install some of the equipment (Multiplus, GX and Battery) in a different house (in the UK this time) to provide a grid backup UPS system. Here the entire house is supplied by far fewer ring main circuits, some of which are relatively low demand, lights for example, but other circuits potentially much higher. Here the only source of power is the Grid (no solar), but in this case it's a 100amp supply. Is there a limit to what can be powered through the Multiplus 2? In other words, do I need to constrain what's being supplied by AC1? Or, to put it a third way can EVERY non critical load (potentially up to 100amp) pass through the AC-in and back out again through AC2. (There's no need to use the 'boost' element of the Multiplus system here as I'm paying for the power whether it comes from the grid or via the battery anyway.)

Presumably I'll have to reconfigure this consumer unit and rewire the house to separate what's critical and what isn't to ensure the UPS isn't drained within the first hour of a power cut by teenagers making toast.

BUT can I separate off critical loads to AC-2 and leave everything else to AC-1 - or am I better NOT connecting AC1 at all?

Thanks in advance for everyone's time.

SlartyBart asked
SlartyBart answered ·

2 Answers

Quattro grid parallel with backup generator

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?

[image]

Thanks in advance

Rich



Rich. asked
Rich. commented ·

0 Answers

SMA GT inverter to Multiplus II AC Output

Hi

I have an existing 3phase 10kW SMA GT inverter. We are installing 1 x Multiplus 5kVA48V per phase. and will connect the GT inverter to the output of the Multiplus II inverters as an AC Coupled system.

can someone please advise what settings to change on the SMA to allow me to have the system work in Cape Town South Africa, the site is already registered for Grid Feed-in.

do i need an energy meter on the GT prior to connecting to the Victron Multiplus II?

would the best VE-Config be to use be the Hub 2 even though its deprecated?

many thanks

Raees.c asked
Andre edited ·

1 Answer

How to form Victron Microgrid for Fronius System in case of public grid failure

Hi, I have these equipments:

Separate Equipments:
- 1 pcs of Victron Quattro 48/15000/200-100/100
- 2 pcs of BlueSolar charge controller MPPT 150/85 CAN-bus
- 1 pcs of Victron CGX color controler
- 16 pcs AGM 12V 240AH Batteries

2 On grid Systems in the same place 2x27 KWh with 2 feed points in the same public grid.
- 2 pcs of Fronius Eco 27.0-3-S
- 192 pcs (2x96) of IPPP280W photovoltaic pannels

Unfortunately in Romania the specialists who know Fronius do not know Victron and viceversa.

Questions: Because we are in one area with a lot of long failure (sometimes days) in the public grid,
it is possible to form a local micro-grid, with help of Victron Quattro, in case of public grid failure, in order to use the advantage of our two photovoltaic systems (Fronius), even if the public grid is off?
Actualy the problem that I face is that when the public grid is off, whole the system is off.

The system needs to meet the following:

1. Both on grid system will feed the surplus in public grid when this is on;
2. First priority is to feed the own consumers, then, the public grid (because the compensation with the public grid is 1/3) :(
3. During the public grid failure, it is possible to run on the batteries with small consumers (some TV and Lights) as a small backup system?

Best regards,
Adrian Bondoc

adybondoc asked
Alexandra edited ·

1 Answer

3 Phase Grid Tied Battery storage system with Generator Back Up - Please Help

Hi there,


I am quite new to Victron but have been using SMA Sunny Island. I have heard great things about Victron. I have the below scenario.

The panels will be connected to a 3-phase grid-tied solar -PV inverter to the main-distribution board at the house. To this distribution board we will connect BYD LV batteries using a 3 Phase battery inverter. This inverter will operate in self-consumption mode when grid is available.

When the grid goes off the line, the system will back up all 3 phases till the batteries reach their maximum allowed discharge level.

The system will then start a suitable generator automatically (to be provided by you) and will charge the batteries to a pre-set charge level before turning it off. This cycle will continue till the next day, when the Solar panels starts producing power or until the grid comes back on.


Do i use the Multi-plus 2 or the Quattro to achieve the above solution ?


Many thanks

Jay

jayesh asked
iRomeo commented ·

1 Answer

3 Single phase inverter in 3 phase grid?

Hi everyone,


Right now i'm fully off-grid, using 8kva Fronius and 10kwa Victron.

Potentially, next year, 3 phase grid power might be available. And I have the opportunity to swap my Fronius, for 3 units of 3kva each, but they are Primos, hence single-phase.


I currently have 30 panels installed, and tinking of splitting them into 3 rows, thus having 3 identical 2750w panels with 3 identical 3kw Fronius inverters.


Would it be possible to patch each of them to the 3 phases of the grid?

My Victron and battery set-up would only serve as UPS for one of the phases with critical loads.

Thanks!

iRomeo asked
iRomeo commented ·

1 Answer

No grid meter installed feeding excess power back to the grid.

If the grid fails would the inverter still feed excess power back into the grid with no grid meter installed? Ess setup with feed excess power back on.

Victron quattro 10000

Color control

Mppt 250/100

nicoreeves25@gmail.com asked
iRomeo answered ·

2 Answers

System Alarm Grid Lost

For a few days now we've been getting a system alarm that says "Grid Lost." I can highlight it on our CCGX screen, but it doesn't go away. (I.E. The warning triangle in the top of the screen keeps flashing no matter what I do.) It also does not register on the VRM site under Alarm Logs...

We have not lost grid power once in this time period.

I do however use the CCGX's relay and it's automatic Generator on/off rules to tell the Quattro when to pull power from the grid. (I do this so we can use the energy stored in our batteries first.) So while the Shorepower meter shows zero, we are still connected to the grid.

We also have a PV inverter connected to our Quattro's 230v output, which gave me a grid error once, but I've not seen that happen again. (Meaning it might have but then went away before I noticed it...)

Did something change in the firmware to cause us to get this alarm?

We were running 2.51 but it also happened when I updated it to 2.52.

Thanks to anyone that can help!

Scott


ScottNelson asked
Harold answered ·

3 Answers

Multiplus II inverter fails but AC grid is still available?

I need a fallback switch for my hybrid system Multiplus II inverter if it dies
and the AC grid power is still available .

Surely Victron has already foreseen this possibility ?

Can anyone recommend a switch ???



willemoud asked
RossC answered ·

1 Answer

Victron Microgrid for Fronius Systems in case of public grid failure for a long time

Hi, I have these equipments:


Separate Equipments:

- 1 pcs of Victron Quattro 48/15000/200-100/100

- 2 pcs of BlueSolar charge controller MPPT 150/85 CAN-bus

- 1 pcs of Victron CGX color controler

- 16 pcs AGM 12V 240AH Batteries


2 On grid Systems in the same place 2x27 KWh with 2 feed points in the same public grid.

- 2 pcs of Fronius Eco 27.0-3-S

- 192 pcs (2x96) of IPPP280W photovoltaic pannels


Unfortunately in Romania the specialists who know Fronius do not know Victron and viceversa.


Questions: Because we are in one area with a lot of long failure (sometimes days) in the public grid, it is possible to form a local micro-grid, with help of Victron Quattro, in case of public grid failure, in order to use the advantage of our two photovoltaic systems even if the public grid is off?

Actualy the problem that I face is that when the public grid is off, whole the system is off.


The system needs to meet the following:


1. Both on grid system will feed the surplus in public grid when this is on;

2. First priority is to feed the own consumers, then, the public grid (because the compensation with the public grid is 1/3) :(

3. During the public grid failure, it is possible to run on the batteries with small consumers (some TV and Lights) as a small backup system?


Best Regards,

Adrian Bondoc

adybondoc asked
Alexandra answered ·

1 Answer

Generator Stop after Grid is available

System:

Two Quattros - setup in SplitPhase

ACin1 has a generator

ACin2 has the grid

Four MPPT Solar controllers with a total of 56 panels

Large Battery managed by internal BMS that communicates with Venus.


Venus configures:

ESS Configured

Generator Start when SOC is at 45%

Generator Stop when SOC is at 90%


Should buy from grid if it SOC falls under 50%,

Should charge Battery with solar


The problem: during the night time if the system gets to under SOC 45% because of grid failure, the system turns on the generator, if a few minutes later grid is available, it does not shutoff the generator. In my case an hour later I had plenty of sun to charge the battery. I have not been able to tell the system to prefer the use of grid over generator.


Is there a way to fix this?


-Carlo

Carlo asked
Alexandra answered ·

1 Answer

How does a Quattro decide whether the auxiliary output should be disabled?

Hi there!


Apologies beforehand if this question has been answered before but I couldn't find anything particular.


Our system is sporadically disconnecting our auxiliary AC-out-2 output and we can't really figure out why.


As I understood the AC-out-2 line will only be disconnected should the system be running on battery only (ie, when the grid is found to be unavailable).


However, as far as we can see the system is still sporadically dropping the auxiliary load even though the grid seems to be in tact. In fact, the Quattros are even charging the battery from grid with no apparent problems.


Are there any other reasons why the Quattros would be dropping the auxiliary load apart from grid input issues?


As reference, our system is comprised of:

  • Gateway - Color Control GX
  • VE.Bus - 3x Quattro 48/15000/200-2x100
  • Battery monitor - Generic Can-bus BMS battery (Freedomwon 40/28)
  • Solar charger - SmartSolar Charger MPPT 250/100 rev2
  • Solar charger - SmartSolar Charger MPPT 250/100 rev2

Eduan asked
Eduan commented ·

1 Answer

Grid remote control problem with mulitplus and ESS

Good day,

I have a problem with the 48/3000 and 48/5000 multiplus inverters.
In the Czech Republic, the central remote control is used. It is used for switching boilers, heat pumps etc.
At my location it is broadcast on 216.6Hz over power lines.
The problem is when using the ESS Assistant.
When the remote control datagram is broadcast, the inverters stop charging or inverting and pass to passtrough.
Is there any solution? new FW?
Thank you
Pavel

Pavel Richter asked
Daniël Boekel (Victron Energy Staff) commented ·

3 Answers

Ignoring AC In using generator start/stop functio

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

Stanislav Vávra asked
Stanislav Vávra commented ·

1 Answer

Quattro: Charge from grid but don't slave/synchronize

Hi there!


I was wondering whether it would be possible to configure a multi-phase Quattro system to only utilize the external grid as a battery charging mechanism and not to synchronize against its voltage waveform. In other words allow the Victron system to generate its own VAC reference as if the grid wasn't there in the first place, but still allow DC rectification to charge the batteries.


The reason I'm asking is due to our system running in a fairly rural environment and the quality of the grid supply being poor (both over and under voltage as well as frequency quality). We seem to be suffering equipment damage due to this.


While I assume we could tighten the loss of main high and low limits, we would still prefer running isolated.


For reference, the system comprises of:

  • Gateway - Color Control GX
  • VE.Bus - 3x Quattro 48/15000/200-2x100
  • Battery monitor - Generic Can-bus BMS battery (Freedomwon 40/28)
  • Solar charger - SmartSolar Charger MPPT 250/100 rev2
  • Solar charger - SmartSolar Charger MPPT 250/100 rev2

Eduan asked
Eduan commented ·

1 Answer

Quattro 120/240 selling to grid in USA: which country code? IEEE1547 compliant?

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~

abrahamsolar asked
abrahamsolar commented ·

4 Answers

Quattros cannot connect to grid when the grid operator swap 2 phases.
  1. Hello everyone,

After installing a 3-phase AC coupled system with 6 quattros an a PV inverter connected to AC out of Quattros, we realised that the Quattros cannot connect to grid (AC in1) when the grid operator swap 2 phases. The problem is that the grid operator often swap phases during maintenance of electrical network, and after which the quattros cannot connect anymore to Grid when energy comes back. Is there anyway to change setting of quattro so that they can still connect to grid even if the operator swap 2 phases?

guenserge asked
Riaan Barkhuizen answered ·

1 Answer

Slow Switchover when grid fails.

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?

Bruce Kirk asked
Bruce Kirk commented ·

2 Answers

ESS How to adjust Multiplus that it is only charging from grid when there ain't solar power?

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

THTruck asked
THTruck commented ·

1 Answer

ESS exporting to grid, not the way i thought.

Hi,

Dont have my computer atm so im writing on my phone.
I have an ESS system configured to minimum SOC at 95%.
It was my understanding that when solar was available it would primarily power the load and secondary charge the battery and then if still available export to grid.

I feel that my system export to grid far too much or easy or how to say.
look at this picture.

[image]

Even when i have configured Zero-feedin it still exports to grid.

And why does the AC load drop to 0W when there is solar? I would still like to see the output power.

What have i missed?

I see so many wrong things on below picture.

[image]

ehsab asked
ehsab commented ·

1 Answer

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