Tesla TWC3 via RS485 Support

[smartlader-de]

The TWC3 has RS485 for dynamic load management… there is a device with transformers to dynamically control the maximum charging current via RS485 (https://www.amazon.com/dp/B0CP8F2H24).

There seems to be an active discussion on this topic; they are currently trying to reverse-engineer the RS485:
dracoventions/TWCManager#20

What do you think, could the TWC3 be integrated into evcc.io via RS485…? (The current solution is unfortunately limited to Tesla vehicles only.)

I might be able to provide you with access to a “TWC3 development environment” if you’re interested.

Sources:
• Tesla explanation video: https://www.youtube.com/watch?v=ZLZFYgo6OZk&t=188s
• Tesla information page: https://www.tesla.com/support/charging/wall-connector/power-management#purchase-power-meter
• Tesla installation manual: https://digitalassets.tesla.com/tesla-contents/image/upload/NA_Wall_Connector_Smart_Current_Limits_App_Note_EN.pdf
• The device for load management: https://www.amazon.com/dp/B0CP8F2H24 (also linked on the above page)
• The “German” 3-phase version: https://www.amazon.de/dp/B0CYM4FJ4P?th=1

It seems possible: https://tff-forum.de/t/tesla-wall-connector-lokal-ansteuern/238470/105

Let me know if you need any further assistance!