Add solar charging options to Wallbox integration

[jorisdrenth]

Proposed change

Wallbox has an option in their app to charge a car using energy from a users solar panels. In the Wallbox app this can be turned off, or either one of two modes can be selected: eco mode, which starts charging at 2A and fills with energy from the net till 6A, or full solar, which starts charging at 6A energy from solar panels. A Wallbox Load balancer is needed for this functionality.

This PR adds an "Solar charging" entity to the Wallbox integration. It features a select with three options: "Off", "Eco mode" or "Full solar". This way the solar charging mode can be controlled via Home Assistant. Entity availability is checked with the Power Boost availability (Wallbox' confusing name for the load balancer).

For the API communication I also opened a PR to the Wallbox python project: cliviu74/wallbox#63. The merging of that PR is blocking for this PR.

Disclaimer: it's been 5 year since I worked with Python and this is my first PR for Home Assistant. Looking forward to receive feedback in a constructive way.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Update Wallbox integration docs with solar charging home-assistant.io#37700
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• The code change is tested and works locally.
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• There is no commented out code in this PR.
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• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

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• Documentation added/updated for www.home-assistant.io

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[home-assistant]

Hi @jorisdrenth

It seems you haven't yet signed a CLA. Please do so here.

Once you do that we will be able to review and accept this pull request.

Thanks!

[home-assistant]

Hey there @hesselonline, mind taking a look at this pull request as it has been labeled with an integration (wallbox) you are listed as a code owner for? Thanks!

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[jorisdrenth]

PR cliviu74/wallbox#63 has been merged so I'll open this PR for review.

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

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Stale

[hesselonline]

@jorisdrenth code looks fine, but please add sufficient tests for the new component.