Looking for a card to display forecasted value data against time

Configuration
,
1

I have a data set containing an hourly solar energy forecast.
It is in an array where each item is a dictionary of dateTime (a time value) and globalRadiation (a numeric value).
I would like to plot time on the X axis against solar energy on the Y axis, so I can see the solar forecast for the coming days/hours.

Is there an existing card that can display future datetime data.

So far I can find historic data display or single value display.

2

Have a look at this project and the thread about it. I’ve used it for basic HA recorder data and it is fantastic. I’ve not done it, however I am pretty sure the project author created a way to plot arbitrary JSON data. Good hunting!

2 Likes
3

Thanks, trying to wrangle that at the moment. Looks like the most promising yet.

4

Here’s an example apexchart forecast series example from my solar forecast data:

  - entity: sensor.solcast_forecast_data
    type: line
    name: Future Forecast 90
    color: '#e3a8ab'
    opacity: 0.3
    extend_to_end: false
    stroke_width: 2
    unit: W
    show:
      in_header: false
      legend_value: false
    data_generator: |
      return entity.attributes.forecasts.map((entry) => {
         return [new Date(entry.period_end), entry.pv_estimate90*1000];
       });

The data:

forecasts: 
- pv_estimate: 2.5872
  pv_estimate10: 0.9286
  pv_estimate90: 4.2418
  period_end: '2022-02-20T23:00:00.0000000Z'
  period: PT30M
- pv_estimate: 2.2441
  pv_estimate10: 0.2514
  pv_estimate90: 5.95
  period_end: '2022-02-20T23:30:00.0000000Z'
  period: PT30M
- pv_estimate: 2.2203
  pv_estimate10: 0.3451
  pv_estimate90: 5.95
  period_end: '2022-02-21T00:00:00.0000000Z'
  period: PT30M
- pv_estimate: 3.2898
  pv_estimate10: 0.4723
  pv_estimate90: 5.95
  period_end: '2022-02-21T00:30:00.0000000Z'
  period: PT30M
- pv_estimate: 3.5687
  pv_estimate10: 0.303
  pv_estimate90: 5.95
  period_end: '2022-02-21T01:00:00.0000000Z'
  period: PT30M
- pv_estimate: 3.6542
  pv_estimate10: 0.5786
  pv_estimate90: 5.95
  period_end: '2022-02-21T01:30:00.0000000Z'
  period: PT30M
...etc
3 Likes
5

Deadly, thanks for that.

Now I know I have something that can handle the output, I just need to wrangle the input data into a shape HA will tolerate.

6

Can I ask where your data comes from? You seem to have a nice yaml, and is that orginating as a file or a collection of sensors?

I currently have a local server serving my dataset as both .json and .yaml, but HA doesn’t want to take those in through the rest sensor as they’re bigger than 255 char.

7

That’s an excerpt from a forecast from the Solcast third party Integration.

8

@tom_l your nice example of forecast series is from ha solcast integration v2 or v3? It seems that there is a difference between v2 and v3 outputs.

2 Likes
9

It’s from V2, and it used to work wonderfully.

Not sure how to get V3 going

1 Like