Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

Take screenshots in the middle of the day, as production should be, not from almost 6 pm when the installation will no longer work. You will see if the optimizers have connected to the inverter and what is the DC voltage and current. Is the first LED on the left lit or blinking during the day?
Have you reported the problem to the installer?

Hello.

Robyn212 wrote:

...Maybe you need to update the inverter and it will start.

You're right here, but quite the opposite.
Huawei "made us happy" with an update. If someone has optimizers, it doesn't work.

Check if you have had updates. Installations -> update management ->
I have updates made by adm** on 2023-03-17 XX:XX:XX
adm** is huawei support, not installer.

Now the knowledge of the installer is needed whether the potential-free contact (PIN 15) in the plug has something connected to each other. There may be a trigger for switching off the DC circuit, e.g. from an emergency power switch. If not, it looks like:
The update changed the settings!!!

Go to the web page of the inverter settings -> Configuration -> Dry contact function.
If you don't have anything connected there, it should be NC - not connected.

Robyn212 wrote:

Try to measure the DC circuit in the evening and check if the resistances are correct. Just like in the video below, from 4.50 min.
https://www.youtube.com/watch?v=H6Efx1Fgr0s

>>20500750
If anyone is tempted ... then with optimizers, measurements should be taken in good lighting, not in the evening. Of course, I recommend measuring the voltage at the beginning, it should be 0, but I recommend caution, any failure could happen.
Then we measure the resistances. Depending on the connection direction of the multimeter is different!!

takie info dzisiaj z fusionsolar może być coś na rzeczy:

Dear Customers:
We inform you that, as part of our ongoing internal quality control process, some series of SUN2000P smart PV optimizers will be upgraded to version V100R002C10SPC019 or above via the Fusion Solar platform. Please note that no action is required by your side, since the upgrade will be applied automatically and with no additional costs. We are at your disposal for any inquiry at the following e-mail: eu_inverter_support(_at_)huawei.com.

domelek wrote:

such info today from fusionsolar may be something:

Dear Customers:
We inform you that, as part of our ongoing internal quality control process, some series of SUN2000P smart PV optimizers will be upgraded to version V100R002C10SPC019 or above via the Fusion Solar platform. Please note that no action is required on your side, since the upgrade will be applied automatically and with no additional costs. We are at your disposal for any inquiry at the following email: eu_inverter_support(_at_)huawei.com.

Perhaps it concerns optimizers with old software, I have exactly this one (installation from a year ago) and the installation turned off.

Thanks for the help. In fact, the fault of the software, the inverter settings have changed after the automatic software update. I made the settings as recommended by Velkhor and the inverter started up. Once again, many thanks for your help.

Hello, I have a SUN2000-15KTL-M2 inverter. Two 5kW strings are connected to it, connected to the PV2 and PV4 inputs. Now I added 6 panels with a power of 2.4kW and they are on a separate 3rd string. As far as I know, the inverter has two MPPT inputs PV1 PV2 and PV3 PV4. If two 5kW strings are connected to the PV1 and PV2 inputs and the third 2.4kW string to the PV3 input will be ok. And the question is whether you need to set something in the inverter configuration if I add this 3rd string

Waldek5702 wrote:

Hello, I have a SUN2000-15KTL-M2 inverter. Two 5kW strings are connected to it, connected to the PV2 and PV4 inputs.

1. Generally you are on the right track, but a little bit of detail:
It is important what you have, what voltage and current it has, how many panels ... and not only power.

Waldek5702 wrote:

Now I added 6 panels with a power of 2.4kW and they are on a separate 3rd string.

2. On the 3rd string, i.e. did you run or do you want to run?

Waldek5702 wrote:

As far as I know, the inverter has two MPPT inputs PV1 PV2 and PV3 PV4. If two 5kW strings are connected to the PV1 and PV2 inputs and the third 2.4kW string is connected to the PV3 input, it will be ok.

3. Yes and no depends on the configuration of the rest, see point 1.

Waldek5702 wrote:

And one more question, do you need to set something in the inverter configuration if I add this 3 string

4. Theoretically no, the inverter will detect everything by itself if it is properly connected (see points 1, 2, 3)

The number of panels on two strings is 27 pieces with a power of 370w

Thanks for the photo, it really helped
Theoretically, on a string under the same MPPT there should be:
- the same number of panels,
- should be in the same direction
- should be equally lit (shaded).
If any of the parameters is not met, the MPPT becomes stupid and the efficiency generally goes down. How much lottery.
So similar to the one above
1. The connection of the panels into 2 strings 13 14 will not introduce any mega-riots. The installation may start 1-2 minutes later,
2. Do you have the panels in the same direction?
3. Is there uniform lighting (i.e. shading)?
When it comes to the new 2.4 kWp ... I'm sitting counting ... and it looks bad. The exact model may help.
4. I understand that you have already bought the panels for this 2.4 kWp, do you want to buy?
And the important thing about the 15KTL-M2 inverter was 3 versions. Give the exact model or shoot a photo of the nameplate. You can delete the series

Yes, all panels are on the same roof surface without any shading. I have already installed 6 pieces of panels. Currently, I have two strings of these 13 and 14 panels plugged into the PV1 and PV2 inputs, and this new string of 6 panels is connected to the PV3 input. I am currently working only if there will be too much voltage on MPPT 1 on sunny days. Or would it be better to connect these 6 roof panels to one of the two tycww strings

Added after 1 [minutes]:

Yes, all panels are on the same roof surface without any shading. I have already installed 6 pieces of panels. Currently, I have two strings of these 13 and 14 panels plugged into the PV1 and PV2 inputs, and this new string of 6 panels is connected to the PV3 input. I am currently working only to make sure that the voltage on MPPT 1 will not be too high on sunny days. Or will it be better to connect these 6 panels to the roof to one of the two strings.

This is what it currently looks like in rainy weather

Has anyone experienced the inverter updating itself?
Checking the voltage in Home Assistant today, I noticed a lack of communication with the inverter, which never happens to me, the first thought was some inverter failure, but logging in via fusionsolar everything was fine. So I guessed that the inverter probably got an update and the port was changed.
Is it normal? Currently, I have version 153 and before it was probably 139. I rather exclude the installer, because the installation in May will be 3 years old and it happened to me for the first time.

Hello.
Thanks for the replies, and the production dump.
String 13, and 14 panels connected correctly and that’s how it should be. Don’t move anything here.
As for string 3, it is problematic:
According to the documentation, the start voltage for the inverter is 200V.
Operating voltage range 160V-950V
The panels you used have a voltage of Vmpp 31.59V
Open circuit voltage Voc 37.45V
And now in understandable language for a mortal.
If you have a nice sun...
37.45 * 6 = 224.7V, i.e. above the start voltage for the inverter = production will start
31.59 * 6 = 189.54V above the operating voltage so once it starts it will not turn off
But unfortunately, like clouds, weak sun, or early morning, the string reaches sufficient tension very late and production will start late or on a weak day it will not start at all.

Someone chose the panels poorly, if you wanted to add only 6 panels, then longi or jinko would be better because they have about 41V Vmpp and 35 Voc. Not much, but with 6 panels there is already 20V.

The only solution is to add panels to string 3 (just remember that the parameters must be the same!!) . This is not a problem, the inverter will easily pull.

It’s interesting how someone chose the equipment. Have you indicated that you will want to expand the installation (should predict and tell you how much power of the panels you have to add later). Because if not, it’s poorly chosen.
From experience, I will say that HUAWEI likes a load of 110-115% of the nominal power. eg KTL6 - 6kW fastens nicely with a load of 7.2kWp. It is about the efficiency of generating alternating voltage.
In your case, with the panels installed so far, KTL10-M0/KTL10-M1 would be enough.
In the version with 6 panels added, KTL12.
With this inverter, what do you have, I would suggest the total power of the panels in the range of 16.5-17kWp but I know it costs, and space for assembly.

Another note, but only if you are a prosumer. Does not apply to net meeting (new rules).
One more thing to consider when expanding. If you are a prosumer and you have 10kWp, you "recover" only 70%. In practice, it looks like that when you collect electricity on the heat pump and you had 10kWp, you expanded it to 12kWp. It is by changing the billing that you will collect a very similar amount of electricity for the winter :] You have spent extra hay and a big ch... So it is only reasonable to expand to 10kWp, and then above 15kWp.

It is true that you can always switch to new billing rules, but remember that we currently sell electricity at the average price from the previous month, and from June REVOLUTION will be billed hourly. A friend lives in Germany, he has hourly settlements and there you pay for peak productions. Time will tell what will happen to us.

lizak1983 wrote:

Has anyone experienced the inverter updating itself?
Checking the voltage in Home Assistant today, I noticed a lack of communication with the inverter, which never happens to me, the first thought was some inverter failure, but logging in via fusionsolar everything was fine. So I guessed that the inverter probably got an update and the port was changed.
Is it normal? Currently, I have version 153 and before it was probably 139. I rather exclude the installer, because the installation in May will be 3 years old and it happened to me for the first time.

In my opinion, it could have been. Huawei not so long ago sent information in the application that it would probably update the inverters to version 150 by the end of March. Recently, there was also information in the app that they would update the optimizers to version 019.

>>20507913
Yes, they updated to 153, but it works for me.
Only that for HA you have at least 2 plugs that support inverters.
You can connect via WiFi via dongle, to inverter WiFi, via LAN, via MODBUS.
You didn't provide enough details for someone to verify.

I have this repo https://github.com/wlcrs/huawei_solar version 1.2.5, connection via wifi dongle and it works.

lizak1983 wrote:

Has anyone experienced the inverter updating itself?

I had 149 yesterday I noticed it was 153. It works.

My inverter has also updated. I was 150, now it's 153

I noticed that in fusion solar and ha I don't have an inverter shutdown date. Where is this option turned on so that the inverter turns off at night, not sleep?

As far as I know, it's not configured anywhere.
I suspect the problem is elsewhere. Huawei performed on 2 EU and Chinese markets.
EU works all the time and if there is no production, it is in "stand by".
Chinese works when there is DC voltage and when the voltage disappears, it turns off (there is no modbus communication and probably TCP / IP).
I don't know if it can be recognized by the diodes, but in the evening and at night my version blinks with diodes. I don't know how it is with Chinese.
Alternatively, you can check if there is PING communication on the inverter IP from the local network after sunset. If not, it's Chinese for sure.
The fact that you were installed by a Polish manufacturer does not mean that you have an EU version. There were cases of self-importation, given that the price was about 20-30% lower.

Hey everyone, after long searching I found this forum and would like to get advice on my installation that no one seems to be able to help me with. I have Huawei sun2000-6ktl-l1 with one battery and 9kwp panels. It works in grid-tied mode with maximum self-consumption without giving any energy to the grid. My issue is that even I am on maximum self-consumption I am always taking some energy from the grid 1-2kwh every day and in the morning my battery is always half full. What I would like is not to take any energy from the grid. Can I do it somehow with changing the settings or do I have to go to Island mode? I am a bit scared of Island mode when there will be not enough sun but for me it doesn't make sense to pay for 700kwh per year when I produce more energy than I will ever use. Thank you everyone

akir19 wrote:

so that the inverter turns off at night instead of going to sleep?

If you want to control the consumption, consumption and self-consumption in the future using a power meter, then in the case of switching off the inverter for the night, the indications will be false (consumption).

It controls individual phases on separate meters.

rokbok wrote:

akir19 wrote:

so that the inverter turns off at night instead of going to sleep?

If you want to control the consumption, consumption and self-consumption in the future using a power meter, then in the case of switching off the inverter for the night, the indications will be false (consumption).

Gentlemen, I think I need some clarification.
in HA there is "Startup Time" and "Shutdown Time", unfortunately translated into Polish was wonderfully as switching on and off the inverter. This is the switching on and off of the inverter producing electricity. The inverter cannot be turned off in any software way. Even the slider you have in fusion solar turns this inverter on and off. (of course we are talking about the EU version because the Chinese is completely off)

Hello, after a long search I found this forum and I would like some advice on my installation where no one is able to help me. I have a Huawei Sun2000-6Ktl-L1 with one battery and a 9kWP panel. It works in a mode related to maximum consumption without consumption, giving no energy to the grid. My problem is that even I have maximum consumption, I always take 1-2 kWh from the grid every day, and in the morning my battery is always half full. I wish I didn't take any energy from the grid. Can I do this with changing settings or do I have to switch to island mode? I'm not afraid of island mode when there's not enough sun, but it makes no sense to me to pay for 700kWh a year when I'm producing more energy than I'll ever use. Thank you all

Hello oliverco. Welcome to the Polish forum.
You didn't specify how much energy you have. Is it Huawei Luna-2000 or some other manufacturer?

Thank you for your answer. Yes, Huawei Luna 5kW

velkhor wrote:

Hello oliverco. Welcome to the Polish forum.
You didn't specify how much energy you have. Is it Huawei Luna-2000 or some other manufacturer?

Added after 9 [minutes]:

>>20519999
I mean there's enough power, but it picks up off the grid like it always needs something

Approx. I see.
Can you provide a screenshot of your configuration. What I mean.

Sorry, this is different



Added after 3 [minutes]:

>>20520063

Ok, but I meant configuration.
(Yes but, I mean configuration tab).