Help needed with new sensor solar component. (almost there)

passie · February 8, 2019, 10:44pm

Hi there,

I’m not a programmer at all, though i’m trying to create a new component to read out the data from my solar inverter.

I have previously made a python script which worked, but then I found out I needed to use Pypi for all new components. This is where i’m stuck at the moment.

The code which is working can be found at:

gist.github.com

https://gist.github.com/passie/d0c5eb403866e712e03dedbac43f367a

zeverzolar_working.py

"""
Sensor for retrieving the value's of your Zeversolar inverter.

For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.zeverzolar/
"""
import logging
from datetime import timedelta

import requests

This file has been truncated. show original

The code which isn’t working can be found here:

gist.github.com

https://gist.github.com/passie/44e6f2c6cee9e5b59fe67be6b1bba367

zeverzolar_not_working.py

"""
Sensor for retrieving the value's of your Zeversolar inverter.

For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/sensor.zeverzolar/
"""

from datetime import timedelta
import logging

This file has been truncated. show original

Pypi code which belongs to the above components can be found at:

I hope someone is willing to help me with the code and/or point me in the right direction.
I feel that it is something small. Especially for a programmer.

Regards,
Passie

fame89 · May 1, 2019, 12:54pm

Great effort, unfortunately I have no python skills to help you.
I also have a zeversolar inverter. Would be great to be able to use this with HA.

Did you already managed to get it working? If not, I hope someone from the community is able to support!

passie · May 1, 2019, 2:18pm

I have stopped development of this component.
You can connect with the Zeversolar cloud via the REST component.

Duff78 · November 20, 2019, 10:48pm

Hi @passie, I am new to HA.
Would you be able to share how?
Thanks in advance

Regards, Duff

passie · November 21, 2019, 11:49pm

Hi @Duff78,

Welcome to home assistant and the forum.
No problem with sharing my configuration.

I’m currently using the following configuration in my setup.

  - platform: rest
    resource: https://www.zevercloud.com/api/v1/getPlantOverview?key=<your_api_key>
    json_attributes:
      - E-Today
      - E-Month
      - E-Total
      - TotalYield
      - CO2Avoided
      - Power
    name: zeversolar
    value_template: 'OK'
  - platform: template
    sensors:
      e_today_value:
        value_template: '{{ states.sensor.zeversolar.attributes["E-Today"]["value"] }}'
        unit_of_measurement: "kWh"
      e_month_value:
        value_template: '{{ states.sensor.zeversolar.attributes["E-Month"]["value"] }}'
        unit_of_measurement: "kWh"
      e_total_value:
        value_template: '{{ states.sensor.zeversolar.attributes["E-Total"]["value"] }}'
        unit_of_measurement: "MWh"
      totalyield_value:
        value_template: '{{ states.sensor.zeversolar.attributes["TotalYield"]["value"] }}'
        unit_of_measurement: "€"
      co2avoided_value:
        value_template: '{{ states.sensor.zeversolar.attributes["CO2Avoided"]["value"] }}'
        unit_of_measurement: "T"
      power_value:
        value_template: '{{ states.sensor.zeversolar.attributes["Power"]["value"] }}'
        unit_of_measurement: "W"

You can find your API key on the Zevercloud website.
On the Zevercloud website goto Configuration --> Plant configuration and scroll to the bottom.
There you find your API key.

Let me know if you ran into any problem, I’ll try to help you out.

Regards,
Passie

Duff78 · November 22, 2019, 8:04pm

Hi Passie,

Thanks a lot for the help.
Works like a charm

Regards, Gijs

Duff78 · November 23, 2019, 10:43am

Hi Passie,

I cheered too soon. Today I get errors for every value. First I thought it was because the sun wasn’t up and my PV didn’t turn on yet. But now still nothing. The graphs under the history section don’t register any power generation as well. Do you have any ideas or suggestions?

Thanks a lot

Logboekdetails ( ERROR )

Sat Nov 23 2019 11:05:31 GMT+0100 (Central European Standard Time)

Could not render template power_value: UndefinedError: ‘mappingproxy object’ has no attribute ‘Power’

passie · November 23, 2019, 12:32pm

Could you paste the config you have now?
And what do you get if you go to the url, are you getting json back?

Duff78 · November 27, 2019, 9:15pm

Hi,

Dit is wat ik in m’n config heb staan.

sensor:
#Zeversolar PV sensor (https)
  - platform: rest
    resource: https://www.zevercloud.com/api/v1/getPlantOverview?key= !secret ZEVERSOLAR_API
    json_attributes:
      - E-Today
      - E-Month
      - E-Total
      - TotalYield
      - CO2Avoided
      - Power
    name: zeversolar
    value_template: 'OK'
  - platform: template
    sensors:
      e_today_value:
        value_template: '{{ states.sensor.zeversolar.attributes["E-Today"]["value"] }}'
        unit_of_measurement: "kWh"
      e_month_value:
        value_template: '{{ states.sensor.zeversolar.attributes["E-Month"]["value"] }}'
        unit_of_measurement: "kWh"
      e_total_value:
        value_template: '{{ states.sensor.zeversolar.attributes["E-Total"]["value"] }}'
        unit_of_measurement: "MWh"
      totalyield_value:
        value_template: '{{ states.sensor.zeversolar.attributes["TotalYield"]["value"] }}'
        unit_of_measurement: "€"
      co2avoided_value:
        value_template: '{{ states.sensor.zeversolar.attributes["CO2Avoided"]["value"] }}'
        unit_of_measurement: "T"
      power_value:
        value_template: '{{ states.sensor.zeversolar.attributes["Power"]["value"] }}'
        unit_of_measurement: "W"

Zie in de log een aantal meldingen staan.
Zal er een paar sturen als de PV aan gaat

mvg, Gijs

passie · November 27, 2019, 10:51pm

Why is there a space between your getPlantOverview?key= and !secret ? (not sure if this is the problem)
Besides that. It looks similar to my configuration.

btw: Please answer in English so everybody else could learn from it as well.

Duff78 · December 2, 2019, 7:53pm

Hi Passie,

I put the API back in the config, because removing the space didn’t help. Now it works again.

The cause was a combination of router losing connection in combination with the space in the API key. I don’t know if it is just me, but some of the error messages on HA are leading me on a wild goose chase.

Passie, thanks again

phantompants4ever · January 19, 2020, 8:02am

Checkout this https://github.com/CheongKoo/HA_AppDaemonZeverSolar.

I have it working and it seems to be work fine (just got it working). Just the real-time power value in kW and it seems about 5 minutes quicker than getting the ZeverCloud data (that flicks between W and kW so is difficult to plot or use for automations).

bagin79 · December 8, 2020, 9:49pm

Hello,

@passie
I’ve been using your code successfully for several months. Over a week it stopped working and I’m getting the following error in HA

Error fetching data: https://www.zevercloud.com/api/v1/getPlantOverview?key=<my API key> failed with HTTPSConnectionPool(host='www.zevercloud.com', port=443): Read timed out. (read timeout=10)

I have got onto the Zevercloud and they said that they stopped using the old API and sent me a document referring to the new one. Zevercloud New API

I gave it a go trying to use Http request but have no developer skills and got nothing at the end. Can you have look yourself and see is it working for you

passie · December 10, 2020, 5:46am

Let me get back on that. Mine has also stopped working.

passie · December 12, 2020, 9:46am

As a work around you could use pvoutput. Within pvoutput you can configure your solar app + api key.
I don’t know how to do this via curl / rest.

jerwij · January 1, 2021, 1:14pm

Is it possible that you’ve linked the old document? Last revision date is 2018-01-04 and also the filename indicates this is an old document(“Zevercloud api-en2018-04-18.pdf”)?

bagin79 · January 2, 2021, 8:49pm

I have been onto Zevercloud twice and that’s what I have got. You’re wright about the dates, they don’t make sense.
As far as I can understant the document, apart from from AppKey and APPsecret that are assigned by zevercloud you also need to use a signature. The signature is given by some other gateway like Alibaba. Hovewer I’m not a developer and I don’t fully understant the whole mechanism of using all those required parameters to retrieve the plant data.
The AppKey and APPsecret can be found in zevercloud account management settings.

mistere · April 7, 2021, 4:43am

Instead of going to the main site, i’ve just grabbed it directly from the inverter. Can probably do this with scrape too, but this was easier for me.

  - platform: command_line
    command: python3 -c "import requests; print(requests.get('http://192.168.1.131/home.cgi').text)"
    name: "Zeversolar - current power"
    value_template: "{{ value.split('\n')[10] }}"
    unit_of_measurement: 'W'
  - platform: command_line
    command: python3 -c "import requests; print(requests.get('http://192.168.1.131/home.cgi').text)"
    name: "Zeversolar - energy today"
    value_template: "{{ value.split('\n')[11] }}"
    unit_of_measurement: 'kWh'

bagin79 · April 8, 2021, 6:55am

I have just checked it on mine and it’s working. To be honest, the two parameters are good enough for me.

Thanks for sharing

arjenotto · May 18, 2021, 9:05am

Got the API working with an Python script, command line sensor and templates: