Growatt does not show continuous power

[mvanrijnbach]

Hi,
I am using sincze's growatt php script to read my solar panel data from the growatt server. Since a few months (I think) the power data is not continuous anymore. During the day it drops to zero, so the total energy will not integrate to the right value either. For example, today's graph looks like this:

Domoticz_graph.jpg (87.16 KiB) Viewed 303 times

The total energy for today is supposedly 2.24 kWh, but the graph on the growatt server looks like this:

Growattserver_graph.jpg (95.03 KiB) Viewed 303 times

Here it says the total energy for today is 7.6 kWh, which is what I would expect. Anybody experiences this as well?

Best regards, Michiel.

[waltervl]

I would check the Domoticz or the php script logging. Seems that the script fails to update sometimes for some reason.

[mvanrijnbach]

Hi waltervl,

thank you for your reply. I checked the log on Domoticz. It seems that one time it shows the total power and the next 5 minutes not.

Domoticz_log.jpg (247.52 KiB) Viewed 274 times

As you can see the first time the first total energy is 6748000 Wh and the second time it registers 0. There is no error though. Do you know how I can check the php log? Or can I debug the php script?

Best regards, Michiel.