Energy Dashboard: Multiple Solar Forecast Providers add up - intentionally?

[SirUli]

The problem

When using multiple providers for solar forecast (e.g. forecast.solar and solcast) for the same solar panels, the output of these is summed up instead of being different graphs in the energy dashboard.

Example:

• Add the solcast integration via HACS (https://github.com/oziee/ha-solcast-solar) and set it up
• Add the forecast.solar integration and set it up
• Set up a the solar panel to your energy dashboard
• Add both providers (solcast and forecast.solar) to the forecast section of the solar panel

Now check the energy dashboard - the data is summed up in the forecasted graph. Now go back into the energy dashboard configuration and untick one of these - the graph will be correct then.

I believe this should either be different graphs or it shouldn't be possible to select both providers in the solar panel section. Anything else is pretty odd to a user.

Why did i add both? I wanted to compare their results (and honestly solcast is more precise so far).

What version of Home Assistant Core has the issue?

core-2022.3.5

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Energy Dashboard

Link to integration documentation on our website

https://www.home-assistant.io/docs/energy/

Diagnostics information

No response

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[frenck]

Anything else is pretty odd to a user.

I don't agree :)

intentionally?

Yes.

It is fairly common to have multiple solar panels set up (e.g., a setup on each side of the roof and a setup on the west side of the roof). Set up with multiple strings, locations, elevations, etc; are added by adding multiple forecasts. The combination of those determine the forecast of the total.

So, yeah, this is as it was intended.