Python Plugin: GoodWe solar inverter via SEMS API

[waltervl]

Still a lot of errors. Also seems to be crashing my domoticz sometimes

Code: Select all

 Error: Goodwe Solar: RequestException: HTTPSConnectionPool(host='eu.semsportal.com', port=443): Read timed out. (read timeout=5)

[Arnoud]

Plenty of error here as well, and if I look at my graph of the past 24 hours, it looks like the Goodwe servers are overloaded from 10:00 CET to roughly 17:30. I get decent updates during the evening, night, but during the day a large part of the requests are timing out.

2022-08-19_181401.png (32.79 KiB) Viewed 2741 times

[jslegers]

I moved away from the plugin due to the errors I got lately.
User sincze has a great script for reading out the SEMS Portal :

https://github.com/sincze/Domoticz/blob ... Goodwe.php

I have used this script for a week now and it is running fine.
To keep my history of the plugin I replaced the device with the new one that needs to be created.

Don't forget to make a backup first of the database just to be safe

[waltervl]

I moved away from the plugin due to the errors I got lately.
User sincze has a great script for reading out the SEMS Portal :

https://github.com/sincze/Domoticz/blob ... Goodwe.php

I have used this script for a week now and it is running fine.
To keep my history of the plugin I replaced the device with the new one that needs to be created.

Don't forget to make a backup first of the database just to be safe

This would mean it is solvable also in Python plugin. Something changed at API side that hampers somehow.

[sincze]

I moved away from the plugin due to the errors I got lately.
User sincze has a great script for reading out the SEMS Portal :

https://github.com/sincze/Domoticz/blob ... Goodwe.php

I have used this script for a week now and it is running fine.
To keep my history of the plugin I replaced the device with the new one that needs to be created.

Don't forget to make a backup first of the database just to be safe

This would mean it is solvable also in Python plugin. Something changed at API side that hampers somehow.

It is indeed, but don't have the time to do it.

[waltervl]

I made an issue in the plugin GitHub. Hopefully JanJaap can fix this....
https://github.com/JanJaapKo/domoticz-G ... /issues/17

[sincze]

Good idea indeed.
It will require the necessary changes.

[JanJaap]

Hey guys,

On a quick glance I see indeed that you're accessing some different URL (CheckClientIpIsVN), I'll have a look into that. I also noticed the increase in time-outs. Odd though, you'd expect something to work or not, but not something half as this.... Anyway, I'll dig in.

[Arnoud]

I am pretty sure it is an overloading of the GoodWe servers that is causing this.

This morning was better than most other recent days, but this afternoon the timeouts started to increase again.

[JanJaap]

Hey Arnoud. This sounds plausible. The php script of sincze does not implement time-outs. When running it from terminal, it takes quite some time, so it might trigger time-outs as well. In Domoticz it is undesired to block all operations on waiting for a webserver response, hence the time-outs. I'm checking out his script anyway since he's using other endpoints which is interesting.....

[Arnoud]

By the way, I noticed today that the yellow warning LED on my inverter was blinking. Turned out to be "WiFi server error" (i.e. cloud server connection error). After a few minutes it turned solid yellow again. Hadn't seen that before.

Direct readout might become more attractive if GoodWe doesn't fix this.

[niceandeasy]

Hi, y'all,

My housing corp deployed solar panels with GoodWE inverters, with 4G modules instead of WiFi. That's why I'm here. I cannot communicate with the GoodWE directly, so I have to use the SEMS API.
I implemented JanJaap's plug-in. Seems to work okay. But I'm dreading the fact that my Domoticz will be unstable or freezing, just because GoodWE fails to operate a reliable web site.
Anyway, I'm happy to find a user community here. You guys helped me a lot already. I made the mistakes: using the non-functional plug-in that comes with Domoticz. Installing JanJaap's product. Then, finding out that I need to remove the Domoticz one and add JanJaap's version. Add the requests. Fixing my pip. Setting Python3 as the default.
Anyways, it's working, now. I'm using 5 minutes update interval. The default.

I also implemented "Power consumption device script - SunnyBoy 20180523", found on the Domoticz WiKi. It calculates how much power my house is using, from the smart meter usage data and the solar inverter output data.
This script have me an error, because one of the svalues of the inverter power output had a "W" at the end. Cannot calculate with "W", so I added a line in the script that strips the W.
solar_p, solar_e = otherdevices_svalues[solarmeter]:match("([^;]+);([^;]+)")
solar_p = string.gsub(solar_p,"W","") --added for removing the W

I think there should not be a W.
For the rest: no issues.

[JanJaap]

Hi,

Glad you like the plugin. I'll try to get the not-working hardware 'web API' removed, as it isn't working anymore.

I've built in time outs (don't worry, you'll see some in your log) to avoid Domoticz hanging on a not responsive API call. The energy data is then update on next successful call (the power data obviously not). Works quite well.

I've heard other people talk about that 'W' but I thought this just came from Domoticz?

[gregoinc]

Hello... new to GoodWe Inverters and this plugin. Followed the installation instructions, but it doesn't appear to work? Here's what my log is showing...

Code: Select all

2022-12-17 22:01:32.017 Status: WebServer(HTTP) started on address: :: with port 8080
2022-12-17 22:01:32.067 Status: WebServer(SSL) started on address: :: with port 443
2022-12-17 22:01:32.081 Status: TCPServer: shared server started...
2022-12-17 22:01:32.082 Status: RxQueue: queue worker started...
2022-12-17 22:01:34.086 Status: EventSystem: reset all events...
2022-12-17 22:01:34.090 Status: NotificationSystem: thread started...
2022-12-17 22:01:34.090 Status: GoodWe Inverter: Worker started, using server URL https://au.goodwe-power.com/...
2022-12-17 22:01:34.091 Status: EventSystem: reset all device statuses...
2022-12-17 22:01:34.096 Status: EventSystem - Python: Failed dynamic library load, install the latest libpython3.x library that is available for your platform.
2022-12-17 22:01:34.099 Status: EventSystem: Queue thread started...
2022-12-17 22:01:34.100 Status: EventSystem: Started
2022-12-17 22:07:04.129 Status: GoodWe Inverter: Worker stopped...
2022-12-17 22:07:04.138 Status: GoodWe Inverter: Worker started, using server URL https://hk.goodwe-power.com/...
2022-12-17 22:07:59.786 Status: GoodWe Inverter: Worker stopped...
2022-12-17 22:07:59.790 Status: GoodWe Inverter: Worker started, using server URL https://hk.goodwe-power.com/...
2022-12-17 22:08:01.865 Status: GoodWe Inverter: Worker started, using server URL https://hk.goodwe-power.com/...
2022-12-17 22:08:08.483 Status: GoodWe Inverter: Worker stopped...

Any suggestions appreciated.

Figured out the error was due to Python not installed. And now I see...

Code: Select all

2022-12-17 22:25:53.575 Status: Domoticz V2022.2 (c)2012-2022 GizMoCuz
2022-12-17 22:25:53.580 Status: Build Hash: eea9db734, Date: 2022-11-05 23:05:35
2022-12-17 22:25:53.581 Status: Startup Path: /home/grego/domoticz/
2022-12-17 22:25:54.419 Status: PluginSystem: Started, Python version '3.9.2', 2 plugin definitions loaded.
2022-12-17 22:25:54.470 Status: WebServer(HTTP) started on address: :: with port 8080
2022-12-17 22:25:54.518 Status: WebServer(SSL) started on address: :: with port 443
2022-12-17 22:25:54.533 Status: TCPServer: shared server started...
2022-12-17 22:25:54.533 Status: RxQueue: queue worker started...
2022-12-17 22:25:56.537 Status: EventSystem: reset all events...
2022-12-17 22:25:56.541 Status: EventSystem: reset all device statuses...
2022-12-17 22:25:56.542 Status: NotificationSystem: thread started...
2022-12-17 22:25:56.543 Status: GoodWe Inverter: Worker started, using server URL https://hk.goodwe-power.com/...
2022-12-17 22:25:56.875 Status: Python EventSystem: Initializing event module.
2022-12-17 22:25:56.878 Status: EventSystem: Started
2022-12-17 22:25:56.878 Status: EventSystem: Queue thread started...
2022-12-17 22:28:10.251 Status: GoodWe Inverter: Worker stopped...
2022-12-17 22:28:10.255 Status: GoodWe Inverter: Worker started, using server URL https://au.goodwe-power.com/...
2022-12-17 22:28:31.649 Status: GoodWe Inverter: Worker stopped...
2022-12-17 22:28:31.652 Status: GoodWe Inverter: Worker started, using server URL https://au.goodwe-power.com/...
2022-12-17 22:28:38.383 Status: GoodWe Inverter: Worker stopped...
2022-12-17 22:28:38.386 Status: GoodWe Inverter: Worker started, using server URL https://au.goodwe-power.com/...

But still no data?? I must be doing something else wrong?

[JanJaap]

Looks like you're using the Web app version, not the sems app version. Please check carefully which one you selected

[gregoinc]

Hi JanJaap,

I wasn't aware there were two types? I have a Raspberry Pi running raspian, with Domoticz running on it. So which version should I use to be able to retrieve the data from my SEMS account?

This is the guide I followed... https://github.com/dylian94/domoticz-GoodWeSEMS

Thanks, Mark

[JanJaap]

OK, so Dylian stopped maintaining that plugin a couple of years ago (it is set to archived for that). So first thing to do is remove the old version and then you need to follow instructions and pull from here: JanJaapKo - GoodweSEMS. Then secondly, make sure to select the right one in the hardware page:

Somoticz GoodweSEMS.PNG (4.48 KiB) Viewed 2309 times

[gregoinc]

OK, so Dylian stopped maintaining that plugin a couple of years ago (it is set to archived for that). So first thing to do is remove the old version and then you need to follow instructions and pull from here: JanJaapKo - GoodweSEMS. Then secondly, make sure to select the right one in the hardware page:
Somoticz GoodweSEMS.PNG

Thank you for the guidance. I followed the steps for the API, and everything worked really well. Much appreciated.

[provedance]

Hi,
With this plugin i get 2 outputs in WATT's form my solar with a slightly difference (lower). Why are there 2 ?

[JanJaap]

I can't really answer that without showing which ones you exactly mean.......