After I have provided some other integrations in the past, I just have finished the initial release of an evcc integration. Please note, that this is a private project - I do not have any connection to the authors of the evcc evcc - Sonne tanken 
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I am fully aware that there exist a evcc ha addon - but I was looking for a more direct integration (by using the evcc API).
Requirements
- A running & configured evcc instance in your network
Key Features
- Supporting almost all evcc API-POST & DELETE requests to adjust the evcc settings, loadpoints and the corresponding vehicles
- Loadpoint mode [Off, Solar, Min+Solar, Fast]
- Phases to use [Auto, 1p, 3p]
- Assign vehicles to loadpoints
- Configure min & max charging currents
- Configure cost limits (€ or CO₂)
- Adjust home-battery settings
- Adjust/create Vehicle & Loadpoint charging plan via HA-Services
- Supporting most of the other loadpoint and vehicle data that is available via the API - please let me know, if you miss some data - probably it just slipped through my attention during testing.
Known Issues
- This is a custom HACS Integration, so you have to add the repository manually to your HACS before you can install it
No Integration Icon (yet) - need to create a PR for the brand’s repository
Your feedback is highly appreciated - TIA