FAQs

[DarwinsBuddy]

FAQs

Thanks for all of the interest this project has gained and also for your ideas and feedback.

Since many of the inquiries and questions became repetitive over the last couple of weeks, I decided to
create a list of FAQs s.t. (hopefully) I do not have to answer each of those multiple times over time.

IMPORTANT INFORMATION

This project is a community project and is not in any way related to Wiener Netze and their Smartmeter infrastructure.
If you have troubles with your smart meter, please do not create issues or discussions here in this project, they will politely be deleted without further notice if they do not address a topic directly associated with this integration.

How often are the sensors updated?

This integration uses the Wiener Netze B2C API, which serves at earliest your smart meter readings
in the morning at the day after your consumption. The integration checks every hour if new data is available and will update
automatically. If you have a brand new smart meter give the API a few days to expose your data.

Why does my login not work?

Please use the login credentials you're usually using at https://smartmeter-web.wienernetze.at/ (which should be the same as for your log.wien login)
Other oauth providers are not supported yet (e.g. google, etc.)

Why is my _statistics sensor marked as inactive?

Since we scrape the WienerNetze API once a day (as it's not delivering real-time, but batch data) we had to find a solution to retroactively import data into home assistant. Since there is no official API for that @reox got creative and came up with injecting the individual entries into the persistence layer of HA by using recorder.
But this forces us to never set the _statistics sensor active, as it would not be possible to add retroactively entries from that point on. Thus we decided to go for a double track solution: The live sensor for daily data that can be used for applications in HA that require an active sensor, but not necessarily historical data, and the _statistics sensor for historical data to sift through in your Energy dashboard.

Why does my sensor not show, or not display information?

Be sure, that your credentials are correct.
If you got your smart meter only recently, patiently wait for Wiener Netze to activate it and for them to slowly export the data to their API.

I opted into 15 min granularity. Can I access this data within the integration?

The answer to this question is complicated. Right now, Homeassistant cannot easily import historical data (See also this discussion). Therefore, it is not possible to have the 15min data directly.
However, it is possible to import statistics, but only for 1h intervals. Thus, the current implementation makes use of the statistics import to give you at least 1h consumption data.
The handling of this data is a bit special, as it is not a simple sensor state, but stored separately.

Setup 1h consumption data in energy dashboard

Go to the energy configuration and select as consumption meter reading the energy sensor that ends with _statistics, i.e., something like sensor.at0010000000000000001000000000000_statistics.
You might get a warning, that this entity is not available, but yesterday's statistic data should turn up in the energy panel.

Use the 1h consumption data as lovelace widget

Here are some examples, how to use the 1h consumption data in various forms:

Show yesterday's and the day before that total consumption

This is similar to the widget you can see in the smartmeter-web:

type: horizontal-stack
cards:
  - type: statistic
    entity: sensor.at0010000000000000001000000000000_statistics
    name: Gestern
    period:
      calendar:
        period: day
        offset: -1
    stat_type: change
  - type: statistic
    entity: sensor.at0010000000000000001000000000000_statistics
    name: Vorgestern
    period:
      calendar:
        period: day
        offset: -2
    stat_type: change

Get a graph of the hourly consumption

Note: This graph seems to produce wrong results, when the consumption is very similar for each hour...

chart_type: bar
period: hour
days_to_show: 2
type: statistics-graph
entities:
  - entity: sensor.at0010000000000000001000000000000_statistics
    name: Energy Consumption
stat_types:
  - state

How can I start over with a fresh data import?

1. Navigate to the energy configuration and remove the sensors for consumption and feed-in
   
2. Remove the statistical data of the sensors
   • Navigate to Developer tools -> Services -> Recorder: Clean up entities
   • Select all sensors (start with AT001)
   • Deactivate Domains to remove and Entity globs to remove
   • Select Days to keep and select 0
   • Click on Execute service
     
3. Remove the integration
   • Navigate to Integrationen and to the entry of WienerNetzeSmartmeter.
   • Select the 3 points for ALL entries and click Delete
     
4. Navigate to Developer tools -> Statistics
   • Enter AT001 in the search above
   • For each entry, a button should appear on the right “Problems with this integration”
   • Click on it and select delete
5. Reboot HomeAssistant
6. Install the newest version with HACS
7. Reboot HomeAssistant
8. Add the integration WienerNetzeSmartmeter again

General Troubleshooting

If problems still occur, a good starting point for identifying them is to activate debug logging in the integration:

1. delete the entities in the integration
2. activate the debug logging
3. add the entities again using Add entry
4. deactivate the debug logging - a log should be downloaded automatically
5. post the relevant parts, i.e. error messages etc. here
   

[TheRealVira]

Hey @DarwinsBuddy , when I integrate this into our home assistant I get a kwh sensor and a hidden cost sensor. The cost sensor is always 0,-€ and the kwh is always 419,32. Both sensors haven't changed for two weeks (since integration). I want to help and fix this issue, but I am not sure where to start. Are there any logs I can check for?

[TheRealVira]

Awesome! Looking forward to see daily values in main @reox :3

[Kuschla]

@fdinhobl @reox Where do you get the daily values from? I only receive the (currently static) total.

from this branch: https://github.com/reox/WienerNetzeSmartmeter/tree/statistics

Sorry for the newbee question, but how would I "change the integration" to the branch which shows 15min based readings in HACS?

[TheRealVira]

FYI @Kuschla you could always just add their repository as a "custom repository".

[DarwinsBuddy]

or you simply wait for it to be stable and merged into the main repo :)

[Kuschla]

Yeah - I'll be patiently waiting then :)
thx for the cool work to all of you and as well for the progress you've been making over the past couple of weeks!

[Alfred99-HA]

First of all many thankx for provind the smartmeter integration Wiener Netze for HA! Is was easy to install even tough I am a newbie. It neede a little more reading to understand why it is statistics, ...
Since I am getting a PV (this was the reason to start with HA) I would like to receive the information also for my "Einspeise-Zählpunkte" as well well.
My question is on whether this is working as well and how to add the other Zählepunkt-Identification

[reox]

This should work out of the box, as all zählpunkte should be added. Unfortunately, I cannot test this, as I only have a single smartmeter :/
Does it not add the other zählpunkte?

[Alfred99-HA]

Thanks,. My Zählpunkt for Feed-In was unlocked yesterday I added it in config. The sensor is visible now, statistics not yet - I will check tomorrow since today is the first metered feed-in.

[Alfred99-HA]

Actually couldn't manage to read both "Zählpunkte" - refer to #51

[GeraldPape]

How about two Smartmeters under the same contract. e.g. I have a PV System producing energy measured by the second SM. I see the second SM but it never has any values.