Power control on version 0004.0024.0025

[marckerkhoff]

Took some time but finally I found a way to control my SolarEdge inverter running firmware version 0004.0024.0025. The instructions found on various sites and different modbus implementations did not result in the correct behaviour of the inverter. Pushed it to 0w or no change at all. Following the application note below and understanding the meaning an logic behind the various settings I manage to find the setup.

http://knowledge-center.solaredge.com/sites/kc/files/application_note_power_control_configuration.pdf

Works like a charm. Not sure if these settings are ment to work in this way.

I had to set Limit Production Control to Production mode and then set the site limit to the max of the inverter, in my case 6000w. Now with the Active Power Limit I could manage the power output. And yes I had to commit the changes.

@WillCodeForCats thanks to this flexible HA integration.

Note: did read #926. Should not change the site limit to control the power. This works though it seems to potentially damage your inverter.

[pweijland]

Hi Marc,

I am a bit in the same situation of figuring out how to deal with de Power limit control. Do you now actually manage the power limit by changing the register active_power_limit or by changing the site_limit. Because when I change the site limit, the active_power_limit is adjusted accordingly, but when I change the active_power_limit nothing happens. A negative side effect of changing the site limit is that the inverter is going through a kind of reconfig cycle of 1-2 minutes.

Thanks for you reaction
Paul

[marckerkhoff]

Reading #926 you should control the power through the site_limit. When doing so you hear the inverter reconfiguring itself.

With the setting above I can change the active power limit to say 20% and I see the status change to throttle and it reduces the power output. When on 100% the status is MPPT. When throttling the inverter reduces the power output, like it is doing on a sunny day when DC input exceeds the max inverter power.

Do not compare the actual readings on the different sensors it is not exactly 20% of the output when 100%. I did this test on a cloudy day, hence variation in power output.

[pweijland]

Hi Marc,

I followed your setting setting as you can See below. My problem is that as soon as I hit the commit button the active power limit value is automatically reset to 100.
I don't have a user with installer rights on my inverter, but I can make changes via the portal (172.16.0.1).

What could be different to your setup.

Inverter: SE4000H running firmware 4.25.6

[marckerkhoff]

Paul,
I do not need to press the commit button. It reacts to any changes in the Active Power Limit slider.

I am running 0004.0024.0025, no clue if this makes a difference. I have not changed anything on the inverter, just openen MODBUS TCP.

What does you status say?

With mine the activity window clearly shows a change in the status when doing so MPPT->THROTTLED.
It indeed looks like yours is doing nothing.

[pweijland]

Hi Marc, I only get for a very few seconds the status throtteled as show below, afterwards the limit is set to 100 and the status is mppt. Paul Verzonden vanuit Outlook voor iOS<https://aka.ms/o0ukef>

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________________________________ Van: MarcieMarc ***@***.***> Verzonden: Wednesday, 17 June 2026 15:31:01 Aan: WillCodeForCats/solaredge-modbus-multi ***@***.***> CC: pweijland ***@***.***>; Comment ***@***.***> Onderwerp: Re: [WillCodeForCats/solaredge-modbus-multi] Power control on version 0004.0024.0025 (Discussion #992) Paul, I do not need to press the commit button. It reacts to any changes in the Active Power Limit slider. I am running 0004.0024.0025, no clue if this makes a difference. I have not changed anything on the inverter, just openen MODBUS TCP. What does you status say? image.png (view on web)<https://github.com/user-attachments/assets/3bd7bea0-ef58-42e2-b9d1-4aa27467293c> With mine the activity window clearly shows a change in the status when doing so MPPT->THROTTLED. It indeed looks like yours is doing nothing. — Reply to this email directly, view it on GitHub<#992?email_source=notifications&email_token=CBW6ECM3JIHQANWUO3NMMKL5AKMRLA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCNZTGM4DQOJUUZZGKYLTN5XKOY3PNVWWK3TUUVSXMZLOOSWGM33PORSXEX3DNRUWG2Y#discussioncomment-17338894>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/CBW6ECKNDLEXWJG3QQSHZV35AKMRLAVCNFSNUABIKJSXA33TNF2G64TZHM2DCOJXHA3DINRWHNCGS43DOVZXG2LPNY5TCMBSGM2DKOBQUF3AE>. You are receiving this because you commented.Message ID: ***@***.***>

[pweijland]

Here the screendump, reply in Outlook is not a good idee.