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PVOutput (input) interface shows only info every second day

Posted: Tuesday 26 August 2025 15:05
by cvvt
I use the PVOutput for several years with no issues so far.

However since a month, the "Generate last month" graph only shows data every second day.(see attachment)
On the PVOutput website, everything looks fine.

The value shown seems to be the sum of 2 days.

Any idea what can be the root cause ?

Any help is appreciated.

Re: PVOutput (input) interface shows only info every second day

Posted: Tuesday 26 August 2025 18:40
by RNEE
Do you have hourly values? In the other graph?

Re: PVOutput (input) interface shows only info every second day

Posted: Sunday 14 September 2025 12:54
by cvvt
Dear RNEE,

Thanks for your reply.

Yes I have, see attachment.

FYI : i have 2 systems ( 2 groups of solar panels ) and both shows the same problem.

Re: PVOutput (input) interface shows only info every second day

Posted: Monday 15 September 2025 8:07
by gizmocuz
Which version of DVBAnalyzer are you using? The latest beta version?

Since 11 August, there has been made a change , requested by a user, to remove the from/till API variables when polling

https://github.com/domoticz/domoticz/co ... 7022094c9a

It could be related to this.

Are you able to code/test this function by adding this back in, or shall I create a new version so you can test if this solves the issue?

As I don't use PVOutput myself, I was not able to test the above change, but I received back that all worked out perfectly by the requested user.
It could be very well that this change is causing the issue you have right now

Re: PVOutput (input) interface shows only info every second day

Posted: Monday 15 September 2025 16:47
by bertusf
I have exact the same issue with pvoutput, both on my own domoticz installation (updated to 2025.1) and on the domoticz installation of my parents (they used version 2024.4 till yesterday). I think the issue isn't the changed API call in the last version of domoticz ((Fix #6371), because my parents have this problem since august 2024 (when they used version 2024.4) till now. And the problem consists in 2025.1. To reproduce the issue, I enabled the PVoutput (input) hardware yesterday on my own domoticz installation and I have the exact same problem as described here and what I see at my parents home.
When I look in domoticz.db, on one day there is no record from the PVoutput device and on the next day it counts up to the total of 2 days. So on the first day, nothing is registered in domoticz.db (not even a null value). It worked great till August '24 at my parents home. Maybe this information is of any help?

I can't change the code myself and am willing to try a version without fix #6371. But I don't think that is the solution. Probably something has changed in PVoutput or Domoticz in August '24 that triggered this issue.

Re: PVOutput (input) interface shows only info every second day

Posted: Tuesday 16 September 2025 9:06
by gizmocuz
Thanks for clearing this up!

Is it possible to contact me on our slack channel?

https://join.slack.com/t/domoticz/share ... G2dBSOTRwg

I would like to do some testing ...

Re: PVOutput (input) interface shows only info every second day

Posted: Sunday 26 October 2025 14:09
by just4vinnie
Has anyone already figured cause and / or fix ? Only just noticed exact same behavior since August 3rd.
Appreciate your feedback !

Re: PVOutput (input) interface shows only info every second day

Posted: Tuesday 28 October 2025 18:02
by gizmocuz
Could it be August 11th?

https://github.com/domoticz/domoticz/co ... _Input.cpp

I am running a test with someone else his API key...
Made an change/update today because it was missing the return data (latest beta)

In this test, at 15.00pm I see a huge pike of 13 kW... for one hour... that's strange!

If you are able to debug and help, that would be great.

Re: PVOutput (input) interface shows only info every second day

Posted: Thursday 06 November 2025 16:31
by just4vinnie
Last accurate daily value displayed in Domoticz was for August 1st.
August 2nd onwards all daily values are incorrect. Actually daily values are 0 since then...every...day.

As per the Domoticz logs can see the PVOutput (import) is reading the counter values (totals) from PVOutput correctly and are updating correctly:

Screenshot 2025-11-06 160158.jpg
Screenshot 2025-11-06 160158.jpg (31.62 KiB) Viewed 60 times


So as per my understanding the hourly generated values are no longer updating/calculated correctly (must be a calculated field right ?)

Screenshot 2025-11-06 160429.jpg
Screenshot 2025-11-06 160429.jpg (49.37 KiB) Viewed 60 times

Most likely something simple to resolve if you know the inner workings of the Domoticz DB. Which goes for most IT problems :) Easy to fix for a subject matter expert.
As am not a Domoticz SME and only using it for the monthly totals which are still accurate and ultimately can go to PVOutput interface as well I am just gonna leave it for now.

Thanks for your feedback though. Really appreciated !

Re: PVOutput (input) interface shows only info every second day

Posted: Thursday 06 November 2025 16:59
by gizmocuz
We made some changes in the recent beta, are you running the latest beta version?
Issue has been solved/closed on Github recently